Stenopa Loew

Norrbom, Allen L., Sutton, Bruce D., Steck, Gary J. & Monzón, José, 2010, New genera, species and host plant records of Nearctic and Neotropical Tephritidae (Diptera) 2398, Zootaxa 2398, pp. 1-65 : 55-56

Stenopa Loew

Stenopa Loew 1873: 234 (type species Trypeta vulnerata Loew , by monotypy.

Stenopa resembles Dracontomyia in wing pattern, scutellum shape, and thoracic chaetotaxy and microtrichial patterns (see discussion of Dracontomyia ). It differs in having the scutellum entirely sparsely microtrichose (not bare medially), the costa with enlarged marginal setulae at the humeral break ( Fig. 96), and the wing with 2 hyaline bands originating on the anterior margin in cell r 1. The latter two characters are synapomorphies of Stenopa . The two previously known species develop in the root crowns of species of Senecio ( Novak & Foote 1975, Goeden & Headrick 1990).

Diagnosis. Scutellum strongly convex, entirely sparsely microtrichose. Wing ( Fig. 96) with 6 dark brown bands; basal 2 bands broadly connected anteriorly, separated by hyaline band extending from posterior margin and including apex of vein A 1 +Cu 2 and extending anteriorly into cell dm, but not cell bm; second and third bands connected to form Y-shaped mark with crossvein r-m at their junction; second through fourth bands separated by 2 hyaline bands originating on anterior margin in cell r 1; apical 3 bands connected to form somewhat F-shaped mark. Costa with enlarged marginal setae at humeral break as well as subcostal break.