Ocyptamus (Styxia) eblis (Hull)
The subgenus Styxia has spatulate abdomen, metasternum bare, tuberculate face and pilose eyes, with face unusually wide. Only one species known forthis subgenus, eblis.
New description:
MALE.
Head: Face with facial tubercle, very broad, yellow medially with medial broad black vitta, black ventrally, black pilose, white pollinose; gena brown, pale pilose; lunule black; frontal triangle black with submedial yellow macula on each eye margin, black pilose; holoptic, eye pilose; vertical triangle black, black pilose; antenna short, black; occiput black, white pollinose, white pilose on ventral half, black pilose on dorsal pilose.
Thorax: Scutum black except postalar callus yellow, with dorsomedial broad bronze area divided by three whitish pollinose vittae, black pilose; postpronotum bare; scutellum dark bronze, black pilose, subscutellar fringe complete with very short dark pile. Pleuron mostly black, except posterior anepisternum mostly yellow, katepisternum with dorsal braod yellow macula and basalare yellow, black pilose except yellow pilose on yellow areas; anterior anepimeron pilose; metaepisternum bare; metasternum bare; calypter black; plumula absent; halter yellow; spiracular fringes yellow. Wing: Wing membrane black basally and on anterior margin (except basal half of costal cell hyaline), black also on vein CuA; mostly microtrichose, bare basally on cells R and BM (apically microtrichose) and basal half of costal cell. Alula broad, microtrichose. Legs: Entirely black except femora yellow apically, pro- and metatibiae yellow on basal 1/2, mesotibia yellow on basal 2/3, metabasitarsomere yellow on apical 1/4 and second metatarsus almost entirely yellow.
Abdomen: spatulate, tergum 2 narrower than tergum 3. Dorsum mainly black, with bluish-silvery iridescence/pollinosity, black pilose except tergum 1 pale pilose and yellow pilose on yellow maculae; tergum 2 with lateral margins yellow, with medial broad triangular mate black macula; terga 3 and 4 with lateral margins yellow on anterior half; tergum 5 with lateral margins yellow.
FEMALE.
Very similar to male, except terga 3 and 4 black, mate black macula on anterior half, with lateral margins yellow on anterior half joining anterior yellow fasciate maculae on anterior margin forming an inverted L-shaped yellow maculae separated medially.
Body length: 11 mm.
Neotropical species known from Ecuador and Bolivia.