Olla v-nigrum

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Olla v-nigrum
Olla v-nigrum P1390560a.jpg
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Coleoptera
Suborder:
Polyphaga
Superfamily:
Coccinelloidea
Family:
Coccinellidae
Subfamily:
Coccinellinae
Genus:
Olla
Species:
O. v-nigrum
Binomial name
Olla v-nigrum
(Mulsant, 1866)

Olla v-nigrum is a species in the family Coccinellidae ("lady beetles"), in the suborder Polyphaga. [1] [2] The species is known generally as the ashy gray lady beetle. [3] The distribution range of Olla v-nigrum includes Central America, North America, and Oceania. [2] It is usually gray or pale tan with small black spots on its elytra and thorax. However, a variation can resemble Chilocorus orbus, another species of lady beetle. This form is black with two red spots on the wing covers and has white on the edge of the prothorax. [4]

Contents

Both forms of adult Olla v-nigrum, larva, and pupae. Olla v-nigrum (10.3897-zoologia.38.e64154) Figures 66-70.jpg
Both forms of adult Olla v-nigrum, larva, and pupae.

The V in its name (v-nigrum) comes from the fact that Mulsant originally described the "prothorax" (pronotum) as "orné d'un V et de quatre points noirs" or ("adorned with a V and four black dots"). [5]

Appearance

Olla v-nigrum has two color variants: gray with black spots or black with red spots. [6] They are usually anywhere between 3.7 mm to 6.1 mm in length. Olla v-nigrum is often confused with Chilocorus sp. which usually have more flared elytra and a distinct shape. Additionally, they do not have white marking on their head like Olla v-nigrum. Olla v-nigrum spots tend to be triangular shaped and slope away from where the wings meet. [6]

Olla v-nigrum lack an infundibulum in female genitalia. [7]

Geographic range

Olla v-nigrum are indigenous to Florida but can be found throughout the continental United States and as far south as Argentina. [8] Olla v-nigrum are found in Hawaii and Guam where they were once introduced due to biological control efforts. Additionally, other efforts have led to their introduction in Asia, including establishment in New Caledonia and Reunion Island. Also, the release of Olla v-nigrum has been documented in southeastern France, Israel, and Czechoslovakia, although the status of the beetle in these countries is now unknown due to their population numbers not being documented since their release.[ citation needed ]

Due to competition with the exotic Asian lady beetle (Harmonia axyridis), Olla v-nigrum has become less prominent throughout North America as both beetle species compete for the same broad range of prey, and the Asian lady beetle seems to be less susceptible to parasites. With the Asian lady beetle spreading to South America to countries such as Argentina and Brazil, Olla v-nigrum populations are expected to be negatively impacted. [9]

Recent studies have shown that Olla v-nigrum have also begun to appear on the Canary Islands. Specifically, Olla v-nigrum has now been recorded on La Palma, one of the islands. It was first observed in 2014 on Tenerife and La Palma, followed by Lanzarote and Gran Canaria. Finally, in 2020, Olla v-nigrum was recorded in Madeira. [10]

Life cycle

Olla v-nigrum has an egg stage of about 1 to 2 days on average. Compared to other beetles, Olla v-nigrum have a short larval duration of about 7 days. Additionally, the beetle's pupal phase lasts about 4 to 5 days. Finally, Olla v-nigrum has an egg-adult phase that lasts around 16 days. Overall, the total cycle period of Olla v-nigrum from larva to adult is about 25 days. From these eggs, more than 80% will usually be viable past the larval stage. Once Olla v-nigrum become adults, they usually show a longevity of around 60 days. Additionally, the mean interval between generations of these beetles was found to be about 52 day on average. [11]

O. v-nigrum larvae possess an elongated body. Their abdomen is segmented. After hatching, this species doesn't move around much. They remain around the eggs, even consuming infertile eggs. [12]

Food resources

Olla v-nigrum are known to oftentimes prey on psyllids, a family of insects. Olla v-nigrum populations have been observed to increase in response to increases in numbers of psyllids. Olla v-nigrum usually prey on immature psyllids, such as psyllid larvae. Olla v-nigrum has been observed in nature to specifically prey upon the Asian citrus psyllid (Diaphorina citri) as well as various aphids such as the Schizaphis graminum, Hyadaphis sp., Metopolophium dirhodum, Uroleucon sp., Breviocryne brassicaee L. and Myzus sp. [9]

Additionally, it has been tested whether Olla v-nigrum prey on the Southern green stink bug (Nezara viridula) eggs and nymphs. It has been shown that Olla v-nigrum tend to not prey upon living stink bugs very often. However, they will tend to prey more on dead nymphs of the stink bug. This has been hypothesized to be due to the fact that the Southern green stink bug may have a defensive secretion when it is alive that discourages the beetle from attacking the bug. Even then, only the 4th instars of Olla v-nigrum have been shown to attack the stink bug at a high rate, as the adults tended not to attack the stink bug at all. [13]

This species also feeds on eggs and larvae from the Coleopatera and Lepidoptera order. They even consume aphids from plants. Research has indicated that feeding this species with Anagasta kuehniella Zeller along with an artificial diet impacts Olla v-nigrum adults. The artificial diet used consistend of yeast, honey, ascorbic acid, and water. Results showed that this diet allowed females to produce an average of 11.7 eggs per egg mass with a viability of about 54.8%. The length of the instars was around the same. Further research must be conducted in order to adjust the diet to optimize rearing of this species. [12]

Migration

Seasonal locations

Olla v-nigrum are frequently found in both the tree canopy and at ground level. They are often found in abundance during periods of peak aphid abundance, as this is one of their main sources of food. Experimentally, they have been found at their highest population levels at the beginning of spring and towards the end of the summer at ground level. In terms of the canopy, they are usually found at their peak towards the end of the summer, but never in as great numbers as they are found at ground level. They are very helpful in aphid control due to this tendency to be abundant predators when there is a large amount of aphids present. [14]

Parasitism

Olla v-nigrum have been used to attempt to control parasitism in New Caledonia. Here, the Neotropical psyllid, Heteropsylla cubana are major pests of Leucaena leuconcephala, and it was believed that Olla v-nigrum would help reduce the population of the psyllid in these areas. However, in these attempts, Olla v-nigrum fell victim to parasitism of its own from the phorid Phalacrotophhora quadrimaculata that was found to infest the beetle. [15]

The eggs of the Phalacrotophhora quadrimaculata have been observed to be laid on the pupa of Olla v-nigrum and are usually placed in groups of up to 8 on their victims. Eggs are usually stuck on the host's cuticle either laterally or ventrally. Following the hatching of the eggs, the larva will penetrate and enter the host immediately. After two to three days, these parasites will emerge through a visible hole on the ventral side of the host. [15]

Use in control of pecan aphids

Olla v-nigrum have also been used in conjunction with pesticides for the control of pecan aphids on Carya illinoensis . This includes species such as the black pecan aphid (Melanocallis caryaefoliae), yellow pecan aphid (Monelliopsis pecanis), and the blackmargined aphid (Monellia caryella). Olla v-nigrum are important for the integrated control of pecan aphids because they have been shown to exhibit a lower mortality rate to certain pesticides compared to other beetles that have been used. However, Olla v-nigrum have been shown to exhibit a high mortality rate to carbaryl, which is a common pesticide used for pest control late in the pecan season which may limit their usefulness for integrated control of pecan aphids. [16]

Enemies

Fungi

Olla v-nigrum can become infected by a type of fungus known as Hesperoyces virescens. When infected with these fungi, it has been shown to increase mortality rates significantly in Olla v-nigrum. In addition, Olla v-nigrum have also been shown to be infected to have an increased mortality rate when they are co-infected by the fungi, Hesperomyces virescens and either Beauveria bassiana or Metarhizium brunneum. This was found to significantly increase their mortality rate as well. [17]

Additional investigations also revealed that although Hesperomyces virescens is known to infect other beetle species apart from Olla v-nigrum, interspecific transmission is uncommon between different species such as the convergent lady beetle (Hippodamia convergens) or the spotted lady beetle (Coleomegilla maculata). When interspecific transmission was present experimentally, it was only after substantial periods of close contact between the different species. This indicates that there is a very low likelihood that this would occur in the wild due to the species not having as much contact between one another in nature. [18]

In addition to these fungi, Olla v-nigrum is also known to commonly be infested by Beauveria bassiana. Although spread among much of the same regions as Harmonia acyridids,Olla v-nigrum show a much higher mortality rate when infected by Beauveria bassiana, a different type of fungus. Studies show that Olla v-nigrum tend to die from anywhere between 5 to 7 days after infection. [19]

Additionally, Olla v-nigrum have been experimentally tested for their susceptibility to infection by entomopathogenic nematodes. Similarly to the fungi, Olla v-nigrum were more susceptible to infection from the nematodes than the exotic Asian lady beetle (Harmonia acyridis). Although beetles aren't the first choice of host for nematodes in the wild, in an experimental setting, they have been demonstrated to have a mortality rate greater than 80% in Olla v-nigrum two days after infection. [20]

Cannibalism

Olla v-nigrum has been found to exhibit signs of cannibalism, even when there are sufficient resources available to the beetle. These rates of cannibalism are known to increase in response to a reduction of food availability. Reducing food quality, however, does not affect the rate of cannibalism in the beetle. Additionally, Olla v-nigrum have not been shown to exhibit lower rates of cannibalism when comparing cannabilism in siblings vs. non-siblings, demonstrating that they have not developed sibling recognition mechanisms, otherwise they would more often cannibalize non-siblings. Finally, the size of the group of Olla v-nigrum larva has also been shown to not affect the number of cannibalism events among the beetles. [8]

When provided with Harmonia axyridis larvae as part of their diet in the first or third instar stage of development, it has been shown that Olla v-nigrum larvae were incapable of surviving to the adult stage. In the first instar, Olla v-nigrum larvae were shown to have a 100% mortality rate when fed exotic H. axyridis eggs. When Olla v-nigrum began eating exotic H. axyridis eggs in the third instar, they still suffer from a 95% mortality rate experimentally. However, when fed other native species, there has been no evidence to suggest a significant increase in mortality rate in Olla v-nigrum. [21]

Related Research Articles

<i>Harmonia axyridis</i> Species of beetle

Harmonia axyridis is a large lady beetle or ladybug species that is most commonly known as the harlequin, Asian, or multicoloured Asian lady beetle. This is one of the most variable species in the world, with an exceptionally wide range of colour forms. It is native to eastern Asia, but has been artificially introduced to North America and Europe to control aphids and scale insects. It is now common, well known, and spreading in those regions, and has also established in Africa and widely across South America. This species is conspicuous in North America, where it may locally be known as the Halloween beetle, as it often invades homes during October to overwinter.

<i>Beauveria bassiana</i> Species of fungus

Beauveria bassiana is a fungus that grows naturally in soils throughout the world and acts as a parasite on various arthropod species, causing white muscardine disease; it thus belongs to the group of entomopathogenic fungi. It is used as a biological insecticide to control a number of pests, including termites, thrips, whiteflies, aphids and various beetles. Its use in the control of bed bugs and malaria-transmitting mosquitos is under investigation.

<i>Hippodamia tredecimpunctata</i> Species of beetle

Hippodamia tredecimpunctata, commonly known as the thirteen-spot ladybeetle, is a species of lady beetle.

<i>Hippodamia convergens</i> Species of beetle

Hippodamia convergens, commonly known as the convergent lady beetle, is one of the most common lady beetles in North America and is found throughout the continent. They tend to live a variety of habitats, including grasslands and forests.

Coccinella novemnotata, the nine-spotted ladybug or nine-spotted lady beetle or C9, is a species of ladybug in the family Coccinellidae native to North America. This beetle was once ubiquitous across the continent but experienced a sharp and drastic decline around the 1960’s. Now, considered a rare species, the nine-spotted ladybug has received much attention from researchers who wish to understand the causes of its decline and restore the population of this charismatic beetle to benefit from their aphidophagous nature as biocontrol agents in agriculture.

<i>Coccinella septempunctata</i> Species of beetle

Coccinella septempunctata, the seven-spot ladybird, is a carnivorous beetle native to the Old World and is the most common ladybird in Europe. The beetle is also found in North America, Central and Eastern Asia and regions with a temperate climate. Its elytra are of a red colour, but each punctuated with three black spots, with one further spot being spread over the junction of the two, making a total of seven spots, from which the species derives both its common and scientific names.

<i>Propylea quatuordecimpunctata</i> Species of beetle

Propylea quatuordecimpunctata is a small lady beetle, belonging to the family Coccinellidae. It is sometimes referred to by the common name 14-spotted ladybird beetle, or simply P-14.

<span class="mw-page-title-main">Confused flour beetle</span> Species of beetle

The confused flour beetle, a type of darkling beetle known as a flour beetle, is a common pest insect known for attacking and infesting stored flour and grain. They are one of the most common and most destructive insect pests for grain and other food products stored in silos, warehouses, grocery stores, and homes.

<span class="mw-page-title-main">Coccinellidae</span> Family of beetles

Coccinellidae is a widespread family of small beetles. They are commonly known as ladybugs in North America and ladybirds in the United Kingdom; "lady" refers to mother Mary. Entomologists use the names ladybird beetles or lady beetles to avoid confusion with true bugs. The more than 6,000 described species have a global distribution and are found in a variety of habitats. They are oval beetles with a domed back and flat underside. Many of the species have conspicuous aposematic (warning) colours and patterns, such as red with black spots, that warn potential predators that they taste bad.

<i>Myzus persicae</i> Aphid of peach, potato, other crops

Myzus persicae, known as the green peach aphid, greenfly, or the peach-potato aphid, is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the leaves and the death of various tissues. It also acts as a vector for the transport of plant viruses such as cucumber mosaic virus (CMV), potato virus Y (PVY) and tobacco etch virus (TEV). Potato virus Y and potato leafroll virus can be passed to members of the nightshade/potato family (Solanaceae), and various mosaic viruses to many other food crops.

<i>Coccinella undecimpunctata</i> Species of beetle

Coccinella undecimpunctata, the eleven-spot ladybird or eleven-spotted lady beetle, it is native to central Asia, though commonly found in Europe, and formerly North America as its populations are decreasing. It is of the family Coccinellidae, commonly referred to as ladybugs or lady beetles.

<i>Hesperomyces</i> Genus of fungi

Hesperomyces is a genus of fungi in the family Laboulbeniaceae. The genus contains ten species, including the type species, the Green Beetle Hanger. H. virescens is a complex of species. It is an ectoparasite of an invasive species to Europe and the Americas, the harlequin ladybird. Laboratory bioassays pointed out that Hesperomyces-infected ladybirds suffered increased mortality rates.

<i>Calvia quatuordecimguttata</i> Species of beetle

Calvia quatuordecimguttata, the cream-spot ladybird, is a species of ladybird in the family Coccinellidae. Its distribution is holarctic, it being found in Europe and through the East Palearctic to Japan. It is introduced to North America. This ladybird is generally 4 to 5 millimetres in length and varies in appearance depending on the geographical location. It usually lives in hedgerows and deciduous trees.

<i>Coleomegilla maculata</i> Species of beetle

Coleomegilla maculata, commonly known as the spotted lady beetle, pink spotted lady beetle or twelve-spotted lady beetle, is a large coccinellid beetle native to North America. The adults and larvae feed primarily on aphids and the species has been used as a biological control agent. Based on name connotation and to avoid confusion with other species also called "spotted ladybeetle", spotted pink ladybeetle is probably the most appropriate common name for this species.

<i>Eriopis connexa</i> Species of beetle

Eriopis connexa is a species of ladybird beetle that is native to South America. Both males and females mate multiple times with different individuals of the opposite sex, like most members of the family Coccinellidae. This promiscuous behavior leads to unique reproductive adaptations, such as sperm mixing. Females lay unfertilized eggs which their offspring consume upon hatching, thereby boosting offspring nutrition and reducing sibling cannibalism,. This predatory beetle species feeds primarily on aphids and is widespread throughout many agroecosystems, such as cotton, maize, sorghum, soybean, and wheat. Due to aphids being extremely damaging agricultural pests, E. connexa has been introduced to the United States for biological pest management. Recent studies on pyrethroid insecticide resistance in E. connexa have led to research by applied entomologists on the species' potential role in integrated pest management schemes in crop fields that rely on lambda-cyhalothrin (LCT), a common pyrethroid insecticide that is ineffective against aphid population control. The potential efficacy and success of the utilization of E. connexa in these programs is widely debated and is the focus of much recent research due to the lack of understanding regarding the effects of pyrethroid resistance on the behavior of this species.

<span class="mw-page-title-main">Coccinellinae</span> Subfamily of beetles

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<i>Piezodorus guildinii</i> Species of true bug

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Cryptognatha nodiceps, known generally as the coconut scale predator or sugarcane scale predator, is a species of lady beetle in the family Coccinellidae; it is found in the Caribbean region, North America, and Oceania, having been introduced to various countries in an attempt to provide biological pest control of the coconut scale.

<i>Psyllobora vigintimaculata</i> Species of beetle

Psyllobora vigintimaculata, the twenty-spotted lady beetle, is a species of lady beetle in the family Coccinellidae. It is found in North America.

<span class="mw-page-title-main">Allantonematidae</span> Family of roundworms

Allantonematidae is a family of insect-parasitic nematodes from the order Tylenchida. Allantonematid nematodes infect a variety of insects including beetles, butterflies, flies, thrips, ants, and more. For instance, the nematode Howardula aoronymphium parasitizes mushroom-feeding fruit flies, Formicitylenchus oregonensis parasitizes carpenter ants, and Metaparasitylenchus hypothenemi parasitizes a pest of coffee beans, the coffee berry borer.

References

  1. ↑ "Olla v-nigrum Species Information". BugGuide.net. Retrieved 2018-01-20.
  2. 1 2 "Olla v-nigrum Report". Integrated Taxonomic Information System (ITIS). Retrieved 2018-01-20.
  3. ↑ "Olla v-nigrum Species Overview". Encyclopedia of Life. Retrieved 2018-01-20.
  4. ↑ Will, Kip; Gross, Joyce; Rubinoff, Daniel; Powell, Jerry A. (2020). Field Guide to California Insects. Oakland, California: University of California Press. p. 251. ISBN   978-0-520-28874-4.
  5. ↑ Mémoires de l'Académie des sciences, belles-lettres et arts de Lyon (in French) (Volume 15 ed.). France. 1866. p. 64.{{cite book}}: CS1 maint: location missing publisher (link)
  6. 1 2 "The Coccinellidae (Coleoptera) of America North of Mexico". bugguide.net. Retrieved 2024-04-04.
  7. ↑ Gordon, Robert D. (1985). "The Coccinellidae (Coleoptera) of America North of Mexico". Journal of the New York Entomological Society. 93 (1): i–912. ISSN   0028-7199. JSTOR   25009452.
  8. 1 2 Michaud, J. P. (2003-02-13). "A comparative study of larval cannibalism in three species of ladybird". Ecological Entomology. 28 (1): 92–101. Bibcode:2003EcoEn..28...92M. doi:10.1046/j.1365-2311.2002.00481.x. ISSN   0307-6946.
  9. 1 2 Michaud, J. P. (2001). "Numerical Response of Olla v-nigrum (Coleoptera: Coccinellidae) to Infestations of Asian Citrus Psyllid, (Hemiptera: Psyllidae) in Florida". The Florida Entomologist. 84 (4): 608–612. doi: 10.2307/3496392 . ISSN   0015-4040. JSTOR   3496392.
  10. ↑ Romanowski, Jerzy; Ceryngier, Piotr; Vĕtrovec, Jaroslav; Szawaryn, Karol (2023-07-22). "The Ladybird Beetles (Coleoptera: Coccinellidae) of La Palma". Insects. 14 (7): 655. doi: 10.3390/insects14070655 . ISSN   2075-4450. PMC   10380500 . PMID   37504660.
  11. ↑ Zazycki, L. C. F.; Semedo, R. E. S.; Silva, A.; Bisognin, A. Z.; Bernardi, O.; Garcia, M. S.; Nava, D. E. (2015-11-10). "Biology and fertility life table of Eriopis connexa, Harmonia axyridis and Olla v-nigrum (Coleoptera: Coccinellidae)". Brazilian Journal of Biology. 75 (4): 969–973. doi:10.1590/1519-6984.03814. ISSN   1519-6984. PMID   26675915.
  12. 1 2 Silva, Rafael Braga Da; Cruz, Ivan; Figueiredo, Maria De Lourdes Corrêa; Tavares, Wagner De Souza; Serrão, José Eduardo; Zanuncio, José Cola (September 2013). "Development and Reproduction ofOlla v-nigrum(Coleoptera: Coccinellidae) FedAnagasta kuehniella(Lepidoptera: Pyralidae) Eggs Supplemented with an Artificial Diet". Florida Entomologist. 96 (3): 850–858. doi:10.1653/024.096.0319. ISSN   0015-4040.
  13. ↑ Cottrell, Ted E.; Tillman, P. Glynn (2017-08-05). "Four species of lady beetles (Coleoptera: Coccinellidae) exhibit limited predation on Nezara viridula (Hemiptera: Pentatomidae) eggs and nymphs". Biological Control. 114: 73–78. Bibcode:2017BiolC.114...73C. doi: 10.1016/j.biocontrol.2017.08.005 . ISSN   1049-9644.
  14. ↑ Dutcher, James; Karar, Haider; Abbas, Ghulam (2012-12-05). "Seasonal Abundance of Aphids and Aphidophagous Insects in Pecan". Insects. 3 (4): 1257–1270. doi: 10.3390/insects3041257 . ISSN   2075-4450. PMC   4553575 . PMID   26466738.
  15. 1 2 Disney, R. H. L.; Chazeau, J. (1990). "The recognition and biology of Phalacrotophora quadrimaculata (Diptera: Phoridae) parasitising Olla v-nigrum (Coleoptera: Coccinellidae) used in attempts to control the Leucaena psyllid". Annales de Parasitologie Humaine et Comparée. 65 (2): 98–100. doi:10.1051/parasite/1990652098. ISSN   0003-4150.
  16. ↑ Mizell III, Russell F.; Schiffhauer, Daniel E. (1990-10-01). "Effects of Pesticides on Pecan Aphid Predators Chrysoperla rufilabris (Neuroptera: Chrysopidae), Hippodamia convergens, Cycloneda sanguinea (L.), Olla v-nigrum (Coleoptera: Coccinellidae), and Aphelinus perpallidus (Hymenoptera: Encyrtidae)". Journal of Economic Entomology. 83 (5): 1806–1812. doi:10.1093/jee/83.5.1806 . Retrieved 2024-04-04.
  17. ↑ Haelewaters, Danny; Hiller, Thomas; Kemp, Emily A.; Wielink, Paul S. van; Shapiro-Ilan, David I.; Aime, M. Catherine; Nedvěd, Oldřich; Pfister, Donald H.; Cottrell, Ted E. (2020-11-04). "Mortality of native and invasive ladybirds co-infected by ectoparasitic and entomopathogenic fungi". PeerJ. 8: e10110. doi: 10.7717/peerj.10110 . ISSN   2167-8359. PMC   7648450 . PMID   33194385.
  18. ↑ Cottrell, Ted E.; Riddick, Eric W. (2012-03-25). "Limited Transmission of the Ectoparasitic Fungus Hesperomyces virescens between Lady Beetles". Psyche: A Journal of Entomology. 2012: e814378. doi: 10.1155/2012/814378 . ISSN   0033-2615.
  19. ↑ Cottrell, Ted E.; Shapiro-Ilan, David I. (2003-10-22). "Susceptibility of a native and an exotic lady beetle (Coleoptera: Coccinellidae) to Beauveria bassiana". Journal of Invertebrate Pathology. 84 (2): 137–144. doi:10.1016/j.jip.2003.09.003. ISSN   0022-2011. PMID   14615223.
  20. ↑ Shapiro-Ilan, David I.; Cottrell, Ted E. (2005-05-23). "Susceptibility of lady beetles (Coleoptera: Coccinellidae) to entomopathogenic nematodes". Journal of Invertebrate Pathology. 89 (2): 150–156. doi:10.1016/j.jip.2005.04.002. ISSN   0022-2011. PMID   15913642.
  21. ↑ Cottrell, Ted E. (2004-07-24). "Suitability of exotic and native lady beetle eggs (Coleoptera: Coccinellidae) for development of lady beetle larvae". Biological Control. 31 (3): 362–371. Bibcode:2004BiolC..31..362C. doi:10.1016/j.biocontrol.2004.06.004. ISSN   1049-9644.

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