Glella ashleyi Greathead and Evenhuis, 2001

Greathead, D. J. & Evenhuis, N. L., 2001, Annotated keys to the genera of African Bombylioidea (Diptera: Bombyliidae; Mythicomyiidae), African Invertebrates 42 (1820), pp. 105-224 : 122

publication ID	https://doi.org/ 10.5281/zenodo.7909975
DOI	https://doi.org/10.5281/zenodo.7909754
persistent identifier	https://treatment.plazi.org/id/1F3087A6-FF90-FFA0-75F5-FEFCFDC4AFF6
treatment provided by	Felipe
scientific name	Glella ashleyi Greathead and Evenhuis
status	sp. nov.

Treatment

Glella ashleyi Greathead and Evenhuis sp. n.

( Figs 4 View Figs 4–9 , 29 View Figs 27–30 , 42 View Figs 40–44 )

Etymology: The species is named for Ashley Kirk-Spriggs, who collected and made available many interesting specimens of Mythicomyiidae from Namibia, and made life difficult for one of us (NLE), who has to go through tens of thousands of his alcoholpreserved specimens of microbombyliids, measuring sometimes no more than 1 or 2 mm.

Material examined: Holotype Ò ( NMNW) and 5Ò5^ paratypes from NAMIBIA: Lüderitz District : Rooiberg mountain, 27 ° 38'S 16 ° 28'E, 22–24.ix.1997, A. H. Kirk-Spriggs & E. Marais, Malaise trap sample; 1Ò1^, Obib waters at 28 ° 00'08''S 16 ° 38'46''E, 10–26.viii.1998, A. H. Kirk-Spriggs & E. Marais, Malaise traps sample GoogleMaps . Paratypes: NAMIBIA: 1Ò, Lüderitz District : Skorpion area, 27 ° 49'S 16 ° 36'E, 9–12.viii.1997, E. Marais & A. H. Kirk-Spriggs, Malaise trap; 1Ò, dolomitic hill at: 27 ° 22'30''S 16 ° 19'34''E, 23–25.ix.1997, E. Marais & A. H. Kirk-Spriggs, Malaise trap. 2Ò, 8 km W. Rosh Pinah, 27 ° 59'28''S 16 ° 39'14''E, 10–26.viii.1998, A. H. Kirk-Spriggs & E. Marais, Malaise trap. All deposited in NMNW GoogleMaps . Holotype and paratypes preserved in alcohol.

Diagnosis: This species can be separated from Glella quebradae , the only other known species of Glella , by the normally shaped occiput (occiput developed posteriorly in quebradae ), the more humpbacked mesonotum (less so in quebradae ), and the virtually all brown thorax and abdomen (with broad yellow markings in quebradae ).

Description: Ò^. Length:0.98–1.06 mm. Head: Occiput black; eyes dichoptic, separated at vertex by slightly more than distance between lateral ocelli (i.e. lateral ocelli widely separated); frons depressed medially, brown, yellow just above antennae; face brown, tip of oral margin slightly darker brown; antennae brown to black; scape minute, black; pedicel cylindrical, black, slightly wider than long; first flagellomere ( Fig. 4 View Figs 4–9 ) brown, black dorsally, ovoid, length about 1.5 x greatest width; second flagellomere about third length of first, with subapical style; venter of head reduced, oral margin nearly meeting ventral portion of occiput, area between oral margin and occiput pale brown; proboscis brown, length slightly longer than oral margin; labrum sclerotised, stiff, pointed apically, length slightly less than height of oral margin; palpus not evident. Thorax: Brown, mesonotum with barely perceptible darker brown admedian vittae extending from dark brown subtrapezoidal prescutellar area to just anterior of prealar suture, with minute scattered dark hairs; humeral callus and postalar callus thinly yellow; coxae brown; femora pale brown; tibiae and tarsi yellowish; halter stem brown, knob white. Wing ( Fig. 29 View Figs 27–30 ): Hyaline; veins pale brown to yellowish; costa ends just beyond end of vein R 4+5; vein Sc incomplete, ending at level about halfway between origin of Rs and end of vein R 2+3; Rs evanescent at connection with R 1; R 4+5 slightly curved to wing margin; vein M 1 curved toward wing margin; crossvein dm-cu closing discal cell present; crossvein r-m at middle of discal cell; vein closing cell m 2 arched; A 1 straight to wing margin; short fringe of hair on posterior margin of wing. Abdomen: Dorsum dark brown, with scattered dark hairs; yellow laterally on terga 1–4; venter brown. Female genitalia with spermatheca as in Fig. 42 View Figs 40–44 .