| Sphegina carinata | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Sphegina |
| Species: | S. carinata |
| Binomial name | |
| Sphegina carinata Hippa, Steenis & Mutin, 2015 [1] | |
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. [1]
The name comes from Latin 'carinata', meaning 'keeled', referring to the keeled hind trochanter.
Like other species in its genus, S. (A.) carinata is small, slender, and wasp-like. In male specimens, body length is 6.8 to 8.0 millimeters and wing length is 5.3 to 6.5 millimeters. The face is black, strongly concave dorsally with a weakly developed frontal prominence. The gena is shiny black; frons and vertex dull black, lunula shiny brown; occiput dull black; antenna brown, basal flagellomere darker dorsally; thorax black; pro- and mesoleg yellow, tarsomeres 4 and 5 black; metaleg with coxa dark, trochanter yellow with dark transverse carina ventrally on apical part, femur black with the narrower curved basal part yellow; metatibia without an apico-ventral tooth, black, the basal 1/6 and a broad annulus on the apical 1/2 yellow; metatarsus entirely black. The surstyli and superior lobes are strongly asymmetrical and the arista is distinctly pilose. The wings are hyaline, stigma yellowish, the infuscated pattern brownish. [1]
A female specimen of S. (A.) bispinosa was found to be conspecifc with female specimens of S. (A.) carinata. [2] Female specimens are similar to males except for normal sexual dimorphism; body length is 7.1 to 7.5 millimeters and wing length is 6.5 to 7.0 millimeters. [1]
S. (A.) carinata is similar to S. (A.) index , though they differ by the two most lateral of the enlarged setae on the left side of male sternite IV (twice as long as the longest medial setae in S. (A.) index, five times as long in S. (A.) carinata), the male superior lobe (in S. (A.) index bearing an inconspicuous lobe baso-dorsally as well as a large flip-like lobe ventrally, partly covering a recurrent finger-like lobe, and in S. (A.) carinata bearing a pointed finger-like lobe as well as a small flip-like lobe in a more dorsal position, far from the ventral straight finger-like lobe).
Both these species are similar to S. (A.) malaisei , though S. (A.) malaisei lacks the infuscated wing pattern. Unlike other similar species, S. (A.) carinata and S. (A.) malaisei both possess a transverse ventral carina on the metatrochanter as well as having the two lateral strongest setae on the left side of male sternite IV longer than the other more medial setae. The male genitalia are similar, but differ in the details of the superior lobe: in S. (A.) carinata there is a curved sharp finger-like lobe basodorsally (in S. (A.) index and S. (A.) malaisei there's a rounded low lobe) and a large flip-like lobe in ventral position on the right side (the homologic lobe is smaller and more dorsal in the other two species).
S. (A.) carinata resembles S. (A.) gigas , S. (A.) bispinosa , and S. (A.) hansoni in having long subapical, antero-dorsal setae on the metafemur and by having its sternite VI with a finger-like process, covered with long pile. However, S. (A.) bispinosa differs by having 7 long, strong setae on the left side of male sternite IV instead of just two, and by having 2–3 long subapical anterolateral setae on metafemur instead of only one. S. hansoni differs by having three setae on sternite IV instead of just two, and by having nearly symmetrical surstyli.
Within the species which have male sternite IV asymmetrical and armed with spinose setae, and which have male sternite VI with one or two processes, S. (A.) carinata belongs to a group which has the right side surstylus broader than the left side one, together with S. (A.) crassispina , S. (A.) gigas, S. (A.) index, S. (A.) malaisei, and S. (A.) trispina . [1]
Sphegina abbreviata is a species of hoverfly in the family Syrphidae found in Nepal. Like other species in its genus, S. abbreviata is small, slender, and usually found in and around woodlands. It's similar to S. angustata, though it's differentiated by having both dorsal and ventral sublobes posteriorly on male superior lobe instead of just a dorsal one, and by having the dorsal sublobes be apically short and truncate instead of long and pointed.
Sphegina angustata is a species of hoverfly in the family Syrphidae found in Nepal. It's similar to S. abbreviata, though it's differentiated by having only a dorsal sublobe posteriorly on the male superior lobe instead of both dorsal and ventral, and by having the dorsal sublobe be long and pointed instead of apically short and truncate.
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 dentata is a species of hoverfly in the family Syrphidae found in Taiwan.
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) atricolor is a species of hoverfly in the family Syrphidae found in Myanmar.
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 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 (Asiosphegina) bispinosa is a species of hoverfly in the family Syrphidae found in India, Nepal, and Bhutan. It's similar to S. (A.) hansoni, but easily differentiated by the strongly asymmetrical surstyli.
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