Ithonidae

Last updated

Ithonidae
Temporal range: Early Jurassic–Recent
Rapisma tamilanum India.jpg
Rapisma tamilanum from the Western Ghats
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Neuroptera
Clade: Geoneuroptera
Superfamily: Ithonoidea
Family: Ithonidae
Newman, 1838
Genera

See text

Synonyms
  • Polystoechotidae
  • Rapismatidae

Ithonidae, commonly called moth lacewings and giant lacewings, is a small family of winged insects of the insect order Neuroptera. The family contains a total of ten living genera, and over a dozen extinct genera described from fossils. The modern Ithonids have a notably disjunct distribution, while the extinct genera had a more global range. The family is considered one of the most primitive living neuropteran families. The family has been expanded twice, first to include the genus Rapisma , formerly placed in the monotypic family Rapismatidae, and then in 2010 to include the genera that had been placed into the family Polystoechotidae. Both Rapismatidae and Polystoechotidae have been shown to nest into Ithonidae sensu lato . The larvae of ithonids are grub-like, subterranean and likely phytophagous (plant feeding).

Contents

Description and ecology

Allorapisma chuorum holotype Allorapisma chuorum Holotype SR 08-14-01.jpg
Allorapisma chuorum holotype

Ithonidae are typically medium to large-sized neuropterans. [1] P. S. Welch conducted research in 1914 on "Polystoechotidae" larvae resulting in the conclusion that the larvae were carnivorous. [2] The larvae live a subterranean life. [3] The first instar stage for modern larvae is grub-like, resembling those of scarabdeiform beetles. [2] Robert J. Tillyard first described the larvae of Ithone fusca in 1922, noting the unusual grub-like shape, similar to fruit-chafers and June beetles, as unique among Neuroptera species. [2] The odd larval shape of Ithionidae larvae has been, and continues to be, a subject of interest among entomologists. Tillyard suggested the larvae to be carnivorous, preying upon Scarabaeidae larvae, attacking with the large mandibles and "sucking them dry". [2] Further study by Faulkner in 1990 has shown the immature Ithonidae to be phytophagous, a condition unique among neuropterans. [2] The adults of at least some ithonids are carnivorous. [4] Mass emergences have been recorded from the genera Oliarces and Ithone , usually associated with seasonal rains. [5]

Range

Palaeopsychops marringerae fossil, 50 million years old, Washington, USA Palaeopsychops marringerae Holotype SR 97-08-05 v2.jpg
Palaeopsychops marringerae fossil, 50 million years old, Washington, USA

Modern Ithonidae genera are distributed in both the Western and Eastern Hemispheres, with three species in the Nearctic realm, and four in the Neotropical realm of the Western Hemisphere. Of the genera in the Eastern Hemisphere, three are found in the Australasian realm and one in Indomalaya. The habitats are varied with the genera falling into two general groups, arid taxa and forest taxa. [1] Those genera found in arid regions are Ithone , Varnia , and Oliarces . [1] Four of the Neotropical species inhabit areas with forested microthermal to lower mesothermal climates. [1] Polystoechotes has the widest modern range with P. punctatus inhabiting forests across North America south along the mountains to Panama and P. gazullai inhabiting forests in Central Chile. The North American range of P. punctatus has diminished, disappearing from eastern North America by the 1950s, [6] and now appears restricted to Western North America. [1] Platystoechotes lineatus , the sole species in Platystoechotes, is restricted in range to the Sierra Nevada mountains in California, USA. [1] The remaining modern species Fontecilla graphicus shares habitat with P. gazullai, also inhabiting forests in Central Chile.

Ithonid specimens have been described from fossils dating between the Early Jurassic and the late Eocene, and from sites that indicate a wider geographic range then seen in the modern taxa. [1] Early genera from the Jurassic have been found in China, Kazakhstan, Kyrgyzstan, and Tajikistan. The next grouping of Mesozoic fossils belong to the Cretaceous genus Principiala , which has species described from Brazil, England and tentatively China. The youngest paleorange for the family includes sites in western North America such as the Florissant formation in Colorado and the Okanagan Highland sites in Washington, USA and British Columbia, Canada. [1] Species of the genus Palaeopsychops have been found in the Eocene Fur Formation of Denmark. The genus Elektrithone , described in 2014, extended the family's fossil range to include Baltic amber. [7]

Systematics and taxonomy

Puripolystoechotes pumilus,
Jiulongshan Formation Puripolystoechotes pumilus holotype fig1a.png
Puripolystoechotes pumilus ,
Jiulongshan Formation
Elektrithone expectata
Baltic amber Elektrithone expectata holotype Baltic amber Fig1.png
Elektrithone expectata
Baltic amber
Ricaniella antiquata
Allenby Formation
(1895 illustration) Ricaniella antiquata Scudder 1895 pl1 Fig3.png
Ricaniella antiquata
Allenby Formation
(1895 illustration)

The Ithonidae are regarded as the most primitive living members of Neuroptera. [1] The genus Rapisma was formerly considered to be the sole genus in the family Rapismatidae, however work in the 1990s and 2000s resulted in the inclusion of Rapisma in Ithonidae. The history of Ithonidae and Polysteochotidae is more complex, with several genera having been transferred between each other over the years. Phylogenetic analysis and associated genetic sequencing of three genetic markers for the two families was published in 2010. The results of the analysis showed a clear grouping of the three Australian genera Ithone, Megalithone and Varnia in the family Ithonidae, while all the remaining genera are nested into an expanded Polysteochotidae, given the overall interrelation between the groups, the authors opted to combine the two into an expanded single family Ithonidae. [5]

Ithonidae forms a sister group to the remaining families in the suborder Hemerobiiformia. [2] Ithonidae includes a number of extinct genera described from fossils dating between the Early Jurassic and the Late Eocene. The genera of Ithonidae are clustered into three informal groups:

The Ithonid group:

The Polystoechotid group:

The Rapismatid Group:

Polysteochotidae

Adamsiana

Allorapisma

Principiala

Rapisma

Oliarces

Platystoechotes

Fontecilla

Polystoechotes

Ithonidae

Ithone

Megalithone

Varnia

Related Research Articles

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

The Cupedidae are a small family of beetles, notable for the square pattern of "windows" on their elytra, which give the family their common name of reticulated beetles.

<span class="mw-page-title-main">Neuroptera</span> Order of insects

The insect order Neuroptera, or net-winged insects, includes the lacewings, mantidflies, antlions, and their relatives. The order consists of some 6,000 species. Neuroptera is grouped together with the Megaloptera and Raphidioptera (snakeflies) in the unranked taxon Neuropterida.

<span class="mw-page-title-main">Chrysopidae</span> Family of insects

Green lacewings are insects in the large family Chrysopidae of the order Neuroptera. There are about 85 genera and 1,300–2,000 species in this widespread group. Members of the genera Chrysopa and Chrysoperla are very common in North America and Europe; they are very similar and many of their species have been moved from one genus to the other time and again, and in the nonscientific literature assignment to Chrysopa and Chrysoperla can rarely be relied upon. Since they are the most familiar neuropterans to many people, they are often simply called "lacewings". Since most of the diversity of Neuroptera are properly referred to as some sort of "lacewing", common lacewings is preferable.

<span class="mw-page-title-main">Snakefly</span> Order of insects

Snakeflies are a group of predatory insects comprising the order Raphidioptera with two extant families: Raphidiidae and Inocelliidae, consisting of roughly 260 species. In the past, the group had a much wider distribution than it does now; snakeflies are found in temperate regions worldwide but are absent from the tropics and the Southern Hemisphere. Recognisable representatives of the group first appeared during the Early Jurassic. They are a relict group, having reached their apex of diversity during the Cretaceous before undergoing substantial decline.

<span class="mw-page-title-main">Tanyderidae</span> Family of flies

Tanyderidae, sometimes called primitive crane flies, are long, thin, delicate flies with spotted wings, superficially similar in appearance to some Tipulidae, Trichoceridae, and Ptychopteridae. Most species are restricted in distribution. They are found in many parts of the world, including North America, South America, Africa, Australia, New Zealand, and various islands in the Pacific Ocean. Adults are usually found hanging from vegetation near streams. Larvae are found either in sandy stream margins or in wet, rotten wood. Fossil species are known.

<span class="mw-page-title-main">Hangingfly</span> Family of insects

Bittacidae is a family of scorpionflies commonly called hangingflies or hanging scorpionflies.

<span class="mw-page-title-main">Ptychopteridae</span> Family of flies

The Ptychopteridae, phantom crane flies, are a small family of nematocerous Diptera. Superficially similar in appearance to other "tipuloid" families, they lack the ocelli of the Trichoceridae, the five-branched radial vein of the Tanyderidae, and the two anal veins that reach the wing margins of the Tipulidae. They are usually allied with the Tanyderidae based on similarities of the mesonotal suture, this group being called the Ptychopteromorpha.

<span class="mw-page-title-main">Anaxyelidae</span> Family of sawflies

Anaxyelidae is a family of incense cedar wood wasps in the order Hymenoptera. It contains only one living genus, Syntexis, which has only a single species, native to Western North America. Fossils of the family extend back to the Middle Jurassic, belonging to over a dozen extinct genera, with a particularly high diversity during the Early Cretaceous. Syntexis lay eggs in the sapwood of conifers, preferring recently burnt wood.

<span class="mw-page-title-main">Osmylidae</span> Family of insects

Osmylidae are a small family of winged insects of the net-winged insect order Neuroptera. The osmylids, also called lance lacewings, stream lacewings or giant lacewings, are found all over the world. There are around 225 extant species.

<span class="mw-page-title-main">Hemerobiidae</span> Family of insects

Hemerobiidae is a family of Neuropteran insects commonly known as brown lacewings, comprising about 500 species in 28 genera. Most are yellow to dark brown, but some species are green. They are small; most have forewings 4–10 mm long. These insects differ from the somewhat similar Chrysopidae not only by the usual coloring but also by the wing venation: hemerobiids differ from chrysopids in having numerous long veins and forked costal cross veins. Some genera are widespread, but most are restricted to a single biogeographical realm. Some species have reduced wings to the degree that they are flightless. Imagines (adults) of subfamily Drepanepteryginae mimic dead leaves. Hemerobiid larvae are usually less hairy than chrysopid larvae.

<span class="mw-page-title-main">Berothidae</span> Family of insects

The Berothidae are a family of winged insects of the order Neuroptera. They are known commonly as the beaded lacewings. The family was first named by Anton Handlirsch in 1906. The family consists of 24 genera and 110 living species distributed discontinuously worldwide, mostly in tropical and subtropical regions. Numerous extinct species have also been described. Their ecology is poorly known, but in the species where larval stages have been documented, the larvae are predators of termites.

<span class="mw-page-title-main">Nymphidae</span> Family of insects

Nymphidae, sometimes called split-footed lacewings, are a family of winged insects of the order Neuroptera. There are 35 extant species native to Australia and New Guinea.

<span class="mw-page-title-main">Psychopsidae</span> Family of insects

Psychopsidae is a family of winged insects of the order Neuroptera. They are commonly called silky lacewings.

<i>Allorapisma</i> Extinct genus of lacewings

Allorapisma is an extinct genus of lacewing in the moth lacewings family Ithonidae. The genus is solely known from two Eocene fossils found in North America. At the time of description the genus was composed of a single species, Allorapisma chuorum.

Principiala is an extinct genus of lacewing in the moth lacewings family Ithonidae. The genus is known from Cretaceous fossils found in South America, Europe, and possibly Asia. The genus is composed of two species, the type species Principiala incerta, and Principiala rudgwickensis.

<span class="mw-page-title-main">Kalligrammatidae</span> Extinct family of insects

Kalligrammatidae, sometimes known as kalligrammatids or kalligrammatid lacewings, is a family of extinct insects in the order Neuroptera (lacewings) that contains twenty genera and a number of species. The family lived from the Middle Jurassic to the early Late Cretaceous before going extinct. Species of the family are known from Europe, Asia, and South America. The family has been occasionally described as "butterflies of the Jurassic" based on their resemblance to modern butterflies in morphology and ecological niche.

<span class="mw-page-title-main">Heloridae</span> Family of wasps

Heloridae is a family of wasps in the order Hymenoptera known primarily from fossils, and only one extant genus, Helorus, with 12 species found worldwide. Members of Helorus are parasitic on green lacewings.

<span class="mw-page-title-main">Archisargidae</span> Extinct family of flies

Archisargidae is an extinct family of brachyceran flies known from the Jurassic and Cretaceous periods. It is part of the extinct superfamily Archisargoidea. Most members of the family are known from the Callovian-Oxfordian Daohugou biota of Inner Mongolia, China, and the equivalently aged Karabastau Formation of Kazakhstan. The family has been found to be paraphyletic with respect to Eremochaetidae in a cladistic analysis.

Praeaulacidae is an extinct family of Mesozoic parasitic wasps in the suborder Evanioidea. It among the earliest known families of the group and is characterised by more complete wing venation in comparison to other members of the suborder. It has been found that Othniodellithidae is nested within Praeaulacidae via cladistic analysis.

Mesochrysopidae is an extinct family of lacewings known from the Jurassic and Cretaceous periods. They are considered to be closely related to green lacewings of the family Chrysopidae. The family are also alternatively considered a paraphyletic grade leading up to crown Chrysopidae.

References

  1. 1 2 3 4 5 6 7 8 9 Archibald, S.B.; Makarkin V.N. (2006). "Tertiary Giant Lacewings (Neuroptera: Polystechotidae): Revision and Description of New Taxa From Western North America and Denmark". Journal of Systematic Palaeontology . 4 (2): 119–155. doi:10.1017/S1477201906001817. S2CID   55970660. Archived from the original on June 4, 2011. Retrieved January 27, 2010.
  2. 1 2 3 4 5 6 Grebennikov, V. (2004). "Grub-like larvae of Neuroptera (Insecta): a morphological review of the families Ithonidae and Polystoechotidae and a description of Oliarces clara" (PDF). European Journal of Entomology. 101 (3): 409–417. doi: 10.14411/eje.2004.056 . Retrieved January 27, 2010.
  3. Li, Di; Friedrich, Frank; Jandausch, Kenny; Pohl, Hans; Liu, Xingyue; Beutel, Rolf G. (October 2022). "Unearthing underground predators: The head morphology of larvae of the moth lacewing genus Ithone Newman (Neuroptera: Ithonidae) and its functional and phylogenetic implications". Systematic Entomology. 47 (4): 618–636. doi:10.1111/syen.12556. ISSN   0307-6970. S2CID   249359273.
  4. De Jong, Grant D. (July 2011). "Observations on the Biology of Polystoechotes punctatus (Fabricius) (Neuroptera: Ithonidae): Adult Trophic Status, Description of the Male Reproductive System, and Associations with Mites". Proceedings of the Entomological Society of Washington. 113 (3): 291–298. doi:10.4289/0013-8797.113.3.291. ISSN   0013-8797. S2CID   198148984.
  5. 1 2 Winterton, SL; Makarkin, VN (2010). "Phylogeny of Moth Lacewings and Giant Lacewings (Neuroptera: Ithonidae, Polystoechotidae) Using DNA Sequence Data, Morphology, and Fossils". Annals of the Entomological Society of America . 103 (4): 511–522. doi: 10.1603/an10026 . S2CID   49384430.
  6. S. Marshall (2006). Insects: Their Natural History And Diversity: With a Photographic Guide to Insects of Eastern North America. Firefly Books. ISBN   978-1-55297-900-6.
  7. 1 2 3 4 5 6 7 8 9 10 11 Makarkin, VN; Wedmann, S; Weiterschan, T (2014). "First record of the family Ithonidae (Neuroptera) from Baltic amber". Zootaxa. 3796 (2): 385–393. doi:10.11646/zootaxa.3796.2.10. PMID   24870683.

Commons-logo.svg Media related to Ithonidae at Wikimedia Commons