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Image of Acomoptera echinosa Kerr 2011
Unresolved name

Acomoptera echinosa Kerr 2011

Description

provided by Zookeys
Male. Body length (n=2): 6.5–6.9 mm (avg = 6.7 mm). Wing length: 4.8–5.7 mm (avg = 5.3 mm). Coloration (Fig. 12). Head brown; palpomeres light brown. Antennal scape light brown, pedicel yellowish, base of first flagellomere yellowish, otherwise flagellomeres brown. Thorax cream-colored to brown; scutum brown to dark brown; dorsocentral areas of scutum defined by lighter brown coloration, scutum setae gold- or golden brown-colored; laterotergite and mediotergite light brown to cream-colored. Legs becoming increasingly brown towards tarsi, coxae cream-colored; femur yellowish or cream-colored, tibia yellowish brown to brown, tarsi brown. Wing hyaline without markings, wing veins light brown; haltere stem and knob cream-colored to light brown. Abdominal segments concolorous, brown, slightly darker posteriorly, with golden brown setae. Terminalia yellowish brown to brown. Head. Ocelli slightly raised; middle ocellus clearly smaller than (approx. 0.25? size of) lateral ocelli, lateral ocellus located approx. width of ocellus or less from eye margin, separated from median ocellus by approx. twice its own diameter or a little more. Eyes with sparse, inconspicuous microsetae, which are approximately as long as width of facet. Face with golden brown setae, longest of which approx. same length as width of face. Antenna and abdomen subequal in length. Palpus approx. 1? width of head (anterior view); length of palpomeres 2 and 3 nearly subequal (palpomere 3 longer); palpomere 4 approx. 6? longer than wide; palpomere 5 approx. 11? longer than wide, subequal to or shorter than combined length of palpomeres 3 and 4. Thorax. Antepronotum bearing setae; remaining thoracic sclerites bare. Tarsal claw usually with one small ventral tooth. Wing venation similar to others in the genus (e.g., Acomoptera digitata sp. n., Fig. 8); costal vein extends beyond R5, approx. 0.33? distance between R5 and M1; R1, R5, and M1 with at least some setae on lower surface (ventral M2 sometimes with setae, also). Male Genitalia (Figs 13–14). Epandrium approx. 2? wider than long (Fig. 14F). Gonocoxites with developed dorsomedial comb (Figs 14A, 14C). Gonostylus complex, as shown in Figs 13, 14A–B, 14D–E. Female unknown.
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cc-by-3.0
copyright
Peter H. Kerr
bibliographic citation
Kerr P (2011) Six new species of Acomoptera from North America (Diptera, Mycetophilidae) ZooKeys 137: 41–76
author
Peter H. Kerr
original
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