Hydronema Martynov

Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), Zootaxa 1802, pp. 1-248 : 174

Hydronema Martynov

Hydronema Martynov, 1914: 126 . Type species: Hydronema persica , by monotypy.

Type locality. Uzbekistan .

Species in this genus are large, with glabrous wings. The species are easy to separate from species in other genera by the presence of a character combination of 2 subfamilies. Hydronema and Macronematinae have a short discoidal cell, reduction of forewing setae, and size reduction of the palps. With the Hydropsychinae they share modified male pretarsal claws, and shorter antennae. The unmodified generic primary characters are: (1) the proepisternal setal wart are present; (3) each forewing crossvein m-cu is located distally of crossvein cu; (4) each hind wing median cell is closed; and (5) the hind wing crossvein m-cu is present. Derived primary characters are: (2) preanal appendages reduced to setal warts or surfaces; and (6) spur formula 024 in male and female. The proepisternal setal warts are present in both the males and the females, although they are small and difficult to discern. They were overlooked in the analysis of Schefter (2005). The spurs are small and there is significant variations in their number, also in the hind tibiae with 2 to 4 spurs, sometimes the number differs between the left and right legs of the same animal. Among secondary generic characters the sexually dimorphic pretarsal claws are asymmetrical, with setal bundle on all legs in the males, and symmetrical in the females.