| Sphegina apicalis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Sphegina |
| Subgenus: | Asiosphegina |
| Species: | S. apicalis |
| Binomial name | |
| Sphegina apicalis Shiraki, 1930 [1] | |
Sphegina apicalis is a species of hoverfly in the family Syrphidae found in Taiwan. [1]
In male specimens, body length is 5.2 to 5.5 millimeters and wing length is 4.4 to 4.7 millimeters. The face is black and concave with a weakly developed frontal prominence. The gena is black, mouth edge brown to dark yellow, with large triangular non-pollinose shiny area; occiput black; antenna black with black setae dorsally on scape and pedicel; thorax dark brown to black; scutellum black, shiny, and subtriangular; pro- and mesoleg yellow, tarsomeres 4 and 5 black; metaleg with coxa black, trochanter yellow; femur black and yellow biannulate, incrassate; tibia black and yellow biannulate, without apicoventral dens; tarsus entirely black, basal tarsomere very thick. A very narrow semi-circular area posterior of the lunula is non-pollinose and shiny. The basal flagellomere is squarish, the basal ¼ of the arista short and pilose, about three times as long as the basal flagellomere. The cerci are unmodified and subtriangular; surstyli asymmetrical, the ventral lobe on the right side with subtriangular lobe on posterior margin, on the left side with a long vertical lobe laterally; superior lobe with several sublobes. Female specimens are much the same except for normal sexual dimorphism; body length is 5.0 millimeters and wing length is 3.9 millimeters. [1]
S. apicalis is widely distributed in Taiwan at an altitude between 2200 and 2820 meters above sea level. Specimens have been found visiting the flower Astilbe longicarpa (Saxifragaceae) near a small brook within a mainly older Pinus taiwanensis afforestation, and at Xiangyang collected together with S. dentata , S. orientalis , and S. taiwanenis . [1]
S. apicalis is similar to S. nubicola . They can be differentiated by the very different male genitalia: in S. apicalis the surstyli are angular (curved in S. nubicola), the ventral lobe of the right surstylus has a prominent sublobe at posterior margin (weak sublobe in S. nubicola) and the superior lobes are complicated, with several sublobes (simple in S. nubicola, with only posteroventral claw-like sublobe). The female of S. apicalis differs from that of S. nubicola by the squarish basal flagellomere (oval in S. nubicola) and the squarish, slightly rectangular sterna IV and V (widely to very widely rectangular in S. nubicola). [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) 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 bracon is a species of hoverfly in the family Syrphidae found in Vietnam along with specimens of S. (A.) lucida, S. (A.) nigrotarsata, S. (A.) spenceri, S. (A.) verrucosa, and S. (A.) vietnamensis.
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 dentata is a species of hoverfly in the family Syrphidae found in Taiwan.
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) 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) atricolor is a species of hoverfly in the family Syrphidae found in Myanmar.
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 (Asiosphegina) asciiformis is a species of syrphid fly in the family Syrphidae found in India.
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.
Sphegina guptai is a species of hoverfly in the family Syrphidae found in India. It's similar to S. elegans in general appearance and characters of the male genitalia. It differs from known Oriental species of Sphegina by the shiny black abdomen with widened terga III and IV. Only S. quadrisetae has a somewhat similar appearance.
Sphegina quadrisetae is a species of hoverfly in the family Syrphidae found in China. It's characterized by the long black pile posterior of the posteromedial corner of the eye, the scutellum with four long black setae at posterior margin, and the black and extremely strongly antero-ventrally projected face.
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