Potamyia andria OLÁH & BARNARD, 2006

Oláh, J., P. C & Malicky, H., 2006, A revision of the lotic genus Potamyia BANKS 1900 (Trichoptera: Hydropsychidae) with the description of eight new species, Linzer biologische Beiträge 38 (1), pp. 739-777 : 744-745

Potamyia andria OLÁH & BARNARD nov.spec. (Fig. 2)

Male (in alcohol). General colour dark fulvous. Antennae 16.5 mm, twice length of forewing. Spur formula 044. Tarsal claws asymmetrical, outer one covered by bunch of black bristles. Forewing 8.2 mm. Crossveins M3+4-Cul and Cul-Cu2 not touching, crossvein Cul-Cu2 half its own length basad of M3+4-Cul, Cu2 and A joining before C, crossveins Sc-R1 and R1-R2+3 absent, pale pterostigmal area enlarged. In hindwing, stem of M plus proximal part of M3+4 touching and running parallel with Cu1, fork 1 present, Sc and R1 joining only at level of crossvein closing discoidal cell (R2+3-R4).

Male genitalia. Ninth abdominal segment annular, anteriorly rounded, dorsum narrow, median keel short and visible in dorsal view as a small median triangular projection. Apical lobe on posterolateral margin developed into a semicircular lobe covering half base of clasper. Tenth tergum elongated horizontally with triangularly excised bifid apex slightly upcurved; tip heavily sclerotized, almost hook-like. Setose warts moderately elevated, situated on middle of tenth tergum, well separated and obliquely elongated. Clasper with basal segment straight, almost parallel-sided in both lateral and ventral views, apical segment short, strongly curved medially, clearly bifid. Phallotheca with elongated and enlarged base, dorsum oblique in lateral view and strongly upcurved at articulation with endothecal process; ventral surface strongly sinuate. Subapical ventral keel short, lightly sclerotized. Phallotremal sclerite small, not tapering to apex. Sclerous band of endophallus well developed and touching phallotremal sclerites. Lobules of ventral endothecal lobe membranous and small but visible in both lateral and dorsal views. Endothecal processes forming caudal lips of phallic apparatus semicircular, articulation vertical and covering whole caudal end of phallic apparatus.

This species is close to P. tofina , but the clasper is slender not robust, the apicaI segment of the clasper is more bifid, and the setose warts are more elevated. The phallic dorsum is oblique not straight, and there are no additional subapical lobules on the ventral endothecal lobe. There are also many differences in wing venation as described, and the overall size is much smaller. This species is named in honour of the collector, R. Andria.

H o l o t y p e: Madagascar, North District Diego Suarez, Analamerana, 80 m a.s.l., 50 km S.E. of Diego Suarez, January 1959 (Andria) (J. Oláh collection).