Afrostoma quadripunctatum Skevington & Thompson, 2014

Thompson, F. Christian & Skevington, Jeffrey H., 2014, Afrotropical flower flies (Diptera: Syrphidae). A new genus and species from Kenya, with a review of the melanostomine group of genera, Zootaxa 3847 (1), pp. 97-114 : 107-110

publication ID

https://doi.org/ 10.11646/zootaxa.3847.1.5

publication LSID

lsid:zoobank.org:pub:3578236B-8CE0-42D5-8BEB-68A84D137BCD

DOI

https://doi.org/10.5281/zenodo.4928434

persistent identifier

https://treatment.plazi.org/id/762A8786-FFAC-3F3A-FF24-F9380318D455

treatment provided by

Felipe

scientific name

Afrostoma quadripunctatum Skevington & Thompson
status

sp. nov.

Afrostoma quadripunctatum Skevington & Thompson View in CoL , sp. nov.

Description. MALE. Head: Black; face sparsely gray pollinose except tubercle shiny, tawny pilose; gena shiny on anterior 1/2, sparsely gray pollinose, white pilose posteriorly; lunule black, shiny; frontal triangle sparsely gray pollinose, tawny pilose except with a few black pili intermixed; eye contiguity long, slightly longer than frontal triangle; ocellar triangle shiny, black pilose; occiput white pollinose except more grayish white on dorsal 1/3, white pilose on ventral 2/3, black pilose dorsally; antenna black. Thorax: Black except postalar callus slightly more brownish black; prothorax grayish-white pollinose, white pilose; notum and scutellum shiny, golden pilose except with some black pili intermixed; pleuron sparsely gray pollinose, yellow pilose; plumula white; calypter white with brown margin and yellow fringe; halter yellow. Legs: Black, except trochanter, base of femora and femoral-tibial joints brownish orange, black pilose except coxae yellow pilose. Wing: Brownish, completely microtrichose. Abdomen: Black except for small yellow quadrate basolateral (only on basolateral 1/5) maculae on 3rd and 4th terga; terga dull black pollinose, yellow pilose except black pilose on apical 1/4 of 4th tergum and white and black pilose on genitalia segments; sterna black, subshiny, very sparsely pollinose, yellow pilose except black pilose apically on 4th sternum. Genitalia: Epandrium quadrate ( Fig. 1A View FIGURE 1 ); surstylus elongate, simple ( Figs 1A, B View FIGURE 1 ); ejaculatory apodeme cylindrical ( Figs 1C, D View FIGURE 1 ); distiphallus notched ( Fig. 1D View FIGURE 1 ). FEMALE. Unknown.

Type material. Holotype male: Kenya: Western Province: Kakamega Forest , [0.2355°N, 34.8645°E], 8–9.xi.[19]83, A. Freidberg ( USNM ENT 00036402 View Materials ) ( USNM) GoogleMaps ; Paratypes: Kenya: same location as holotype: 30.viii.–5.ix.2000, ♂, R. Copeland, Malaise trap ( USNM ENT 00036401 View Materials ) ( CNC) GoogleMaps ; ... 8–9.xi.1983, 2♂, I. Yarom ( USNM ENT 00036403-4 View Materials ) ; ... 14.i.1996, ♂, I. Yarom & A. Freidberg ( USNM ENT 00036405 View Materials ) ( USNM) ; Uganda: South West : Rwenzori Mountains, 5 km west of Kilembe, [0.19882°N, 29.96895°E], 2500m, 6.i.1996, 1♂, A. Freidberg, Malaise trap ( USNM ENT 00036406 View Materials ) ( CNC) GoogleMaps . One Paratype will be returned to an appropriate museum in Kenya.

Type-locality. Kenya. Western Province: Kakamega Forest , 0.2355°N, 34.8645°E GoogleMaps .

Etymology. The species epithet, quadripunctatum , is an adjective referring to the four yellow punctate maculae on the abdomen.

Discussion. Afrostoma quadripunctatum is superficially similar to Melanostoma infuscatum Becker , but the yellow abdominal maculae are much smaller and the facial tubercle is more abrupt and prominent than those in infuscatum . The type series of infuscatum Becker (2 males, 2 females in Paris) was examined and herewith we validate the unpublished lectotype selected by Kassebeer (a male, labeled by him) to ensure consistent and universal interpretation of this name.

USNM

Smithsonian Institution, National Museum of Natural History

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Afrostoma

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