| Sphegina atricolor | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Sphegina |
| Species: | S. atricolor |
| Binomial name | |
| Sphegina atricolor Steenis, Hippa & Mutin, 2015 [1] | |
Sphegina (Asiosphegina) atricolor is a species of hoverfly in the family Syrphidae found in Myanmar. [1]
The name comes from Latin 'atricolor', meaning 'black', referring to the general dark color of the fly. [1]
In male specimens, body length is 6.2 to 7.5 millimeters and wing length is 5.2 to 6.5 millimeters. The face is strongly concave with a weakly developed frontal prominence. The face is black; gena shiny brown or yellow; lunula shiny brown; occiput dull black; antenna dark brown; proleg and trochanter yellow; profemur mainly brownish, base and apex yellow; protibia yellowish, usually brownish medially; protarsus yellow, tarsomeres 4 and 5 black; mesoleg with coxa and trochanter yellow; mesofemur brown, basal 1/5 and apical 1/6 yellowish; mesotibia yellow, more or less developed brownish annulus on apical 1/2; mesotarsus yellow, tarsomeres 4 and 5 black; metaleg with coxa brown, trochanter yellow, simple; metafemur blackish, extreme base yellow; metatibia yellow, without apico-ventral tooth, apical 1/5 dark brown and an obscure dark annulus medially; metatarsus dark brown. The surstyli are strongly asymmetrical with only slightly asymmetrical superior lobes; part of the postero-ventral sternite IX is strongly asymmetrical; tergite IX is elongated and the cercus is narrow. The basal flagellomere is oval and the scutellum is semicircular and dorsally semi-shiny. No female specimens are known. [1]
S. (A.) atricolor is similar to S. (A.) furva , though it can be differentiated by tergite IX (shorter in S. (A.) atricolor than S. (A.) furva), the dorsal lobe of right side surstylus (shorter than the medial lobe in S. (A.) atricolor and much longer than the medial lobe in S. (A.) furva), and the two lobes at the dorsal margin on the left side surstylus (much lower in S. (A.) atricolor than in S. (A.) furva. Both species are also similar to S. (A.) adusta , but unlike this species they possess a transverse crest at the base of the lobe located sinistrolaterally at the posterior margin of male sternite IV. S. (A.) atricolor and S. (A.) furva resemble a number of Oriental and eastern Palearctic Sphegina species due to the large subtriangular lobe posteriorly on the left side of male sternite IV. [1]
Sphegina (Asiosphegina) amplistylus is a species of hoverfly in the family Syrphidae found in the Philippines. It's similar to S. inflata, S. philippina, and S. spathigera.
Sphegina (Asiosphegina) atrimanus is a species of hoverfly in the family Syrphidae found in Vietnam.
Sphegina (Asiosphegina) bifida is a species of hoverfly in the family Syrphidae found in Malaysia. It's similar to S. (A.) inventum, though it's differentiated by having the male superior lobe on both sides longer than wide instead of wider than long.
Sphegina (Asiosphegina) brevipilus is a species of hoverfly in the family Syrphidae found in China. It's similar to both S. (A.) plautus and S. (A.) simplex; it and S. (A.) plautus are the only known species with a sclerite between the bases of surstyli as well as posteriorly from the cerci.
Sphegina clavigera is a species of hoverfly in the family Syrphidae found in Vietnam. It's similar to S. crassispina and S. hauseri.
Sphegina collicola is a species of hoverfly found in Malaysia.
Sphegina crinita is a species of hoverfly in the family Syrphidae found in Malaysia and Indonesia. It's easily identified by its superior lobes, the left side one being pushed over the medial line of the hypandrium to the right side so that the right side one seems bilobed. Otherwise, the genitalia are nearly identical to those in S. fimbriata.
Sphegina uncinata is a species of hoverfly in the family Syrphidae found in Myanmar. It's easily identified by a straight dorsal line of frontal prominence that ends just before the ocellar triangle, a strongly projecting mouth edge, and a vibrissal angle more strongly protruding than the frontal prominence.
Sphegina (Asiosphegina) achaeta is a species of hoverfly in the family Syrphidae found in Myanmar. It's easily identified by the weak setae on abdominal tergite I. It's similar in appearance to S. adusta but easily differentiated upon closer examination. The male genitalia are similar to S. pollex and S. culex, though it can be distinguished by having an acute posterodorsal corner of the superior lobe and a broader surstylus; it differs further from S. pollex by lacking a sub-basal dorsal thumb-like lobe. The arrangement of bristles on tergite I is similar to S. japonica.
Sphegina (Asiosphegina) adusta is a species of hoverfly in the family Syrphidae found in Myanmar. It's easily identified by its large size, left side surstylus with a number of unusual lobes, and general dark-brown coloration. It's similar to S. atricolor and S. furva, but unlike these species it lacks a transverse crest at the base of the lobe located sinistrolaterally at the posterior margin of male sternite IV.
Sphegina (Asiosphegina) albolobata is a species of hoverfly in the genus Sphegina found in Vietnam. It's similar to S. (A.) licina, but differs by having the ventral lobe of both gonostyli narrower, apicodorsal part of the right superior lobe shorter, and the ventral part of the left superior lobe with more prominent anterior, medial, and posterior lobes.
Sphegina (Asiosphegina) bidens is a species of hoverfly in the family Syrphidae found in Myanmar.
Sphegina (Asiosphegina) bilobata is a species of hoverfly in the family Syrphidae found in Myanmar. It's set apart from other species by its general pale yellowish color with three black longitudinal stripes on the scutum combined with the infuscated pattern at cross veins on the wing. The male sternite IV with its symmetrical pair of short spinose lobes posteriorly is quite distinct.
Sphegina (Asiosphegina) carinata is a species of hoverfly in the family Syrphidae found in Kambaiti Pass, Myanmar, a montane forest with swampy areas and streams located 2000 meters above sea level.
Sphegina crassispina is a species of hoverfly in the family Syrphidae found in Kambaiti Pass, Myanmar, a montane forest with swampy areas and streams located 2000 meters above sea level. A specimen was found in China that fits the description of S. crassispina save for the more extensively shiny frons and the slightly more protruding frontal prominence.
Sphegina crucivena is a species of hoverfly in the family Syrphidae found in Kambaiti Pass, Myanmar, a montane forest with swampy areas and streams located 2000 meters above sea level.
Sphegina culex is a species of hoverfly in the family Syrphidae found in Kambaiti Pass, Myanmar, a montane forest with swampy areas and streams located 2000 meters above sea level.
Sphegina cultrigera is a species of hoverfly in the family Syrphidae found in Kambaiti Pass, Myanmar, a montane forest with swampy areas and streams located 2000 meters above sea level.
Sphegina apicalis is a species of hoverfly in the family Syrphidae found in Taiwan.
Sphegina kumaoniensis is a species of hoverfly in the family Syrphidae found in India, Thailand, and northeast Myanmar. It's characterized by a convex dorsal line of frontal prominence that ends clearly before the ocellar triangle as well as a mouthedge less strongly projecting, vibrissal angle less protruding or equal with the frontal prominence.
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