Acostatrichia spinifera Flint 1974

Santos, Allan Paulo Moreira, 2020, A review of the Neotropical microcaddisfly genus Acostatrichia Mosely, 1939 with description of a new species from Brazil (Trichoptera: Hydroptilidae: Leucotrichiinae), Zootaxa 4755 (2), pp. 201-230 : 210

Acostatrichia spinifera Flint 1974

Fig. 16

Acostatrichia spinifera Flint 1974:53 . Figs. 102-104, male; type locality: Surinam, Nickerie River, Lombok Falls; type depository: RNH.

Remarks. This species was described from Suriname and is known only from its holotype (not studied here). The male of A. spinifera has a costal bulla on each forewing, probably two small ventromesal processes on segment VII, a pair of long dorsolateral processes on segment IX, and inferior appendages short and not fused to each other ( Flint 1974), being allocated here in the A. plaumanni Group. However, the male genitalia in A. spinifera are very distinctive, and can be easily distinguished from those of other Acostatrichia species by segment VIII having an acute median process on the posterior margin in ventral view, by bifid inferior appendages, and by the divided subgenital plate.

Distribution. Suriname ( Fig. 16 ).

Figures

FIGURE 16. Distribution map of the Acostatrichia species in South America, based on material examined here and previously published records. When latitude and longitude were not available, an approximate location was used. Circle, species in the Acostatrichia plaumanni Group; square, species in the Acostatrichia brevipenis Group; triangle, species in the Acostatrichia cerna Group.