Mecynostomella Kimmins, 1953

Johanson, Kjell Arne, 2003, Revision of the New Caledonian genus Mecynostomella (Trichoptera, Kokiriidae), Zootaxa 270 (1), pp. 1-24 : 5

Mecynostomella Kimmins, 1953

Type species: Mecynostomella fusca Kimmins, 1953 , original designation.

Etymology: Mecyno is from the Greek mekyno, meaning lengthen. Stomella is from the Greek stoma, meaning mouth, with the suffix ­ la, meaning very. The name refers to the long rostrum of the head.

Diagnosis. Ocelli absent. Antennae stout, covered by short, blackish setae. Scapus about 1.5 x longer than wide, between 2/3x and 3/4x eye diameter, pedicel nearly half as long as scapus. Mouthparts strongly prolonged into slender rostrum. Maxillary palp 3­segmented, segments cylindrical, arising approximately 2/3 from base of rostrum, segment 2 longer than segment 1, segment 3 about 2x longer than segment 2. Frons domed. Labial palp 3­segmented, slightly longer than maxillary palp. Forewing termen convex, R1 fuses distally completely with Sc before diverging into wing margin, Dc short, Tc about 1.5x longer than Dc, fork 1 absent in male, present in female, fork 2 with basal nygma and about 1.5x longer than Dc, fork 3 about as long as Dc and fork 5. Hind wing Dc absent, R1 fused distally toward wing margin, fork 1 about as long as fork 3 and shorter than fork 2, M fused with R until R4+5, M3+4 absent, fork 5 about as long as fork 2, Cu2 forked, A multiply divided. Spurs 2,4,4.

The genus is distinguished from other Kokiriidae genera by the antennae being slightly longer than the forewing, the head setal wart tubercles dispersed dissolved into single tubercles, and pronotum without median setal warts.

It is separated from Kokiria by the longer Dc and the convex distal margin of the forewing, and from Taskiropsyche by the presence of 2 foreleg spurs and a cylindrical third maxillary palp segment. The maxillary palps of Mecynostomella originate more distally than those of Taskiria and are longer than those of Tanjistomella . In the forewing of both Taskiria and Tanjistomella , R1 connects to Sc by a crossvein while they are fused in Mecynostomella . The forewing Tc in Tanjistomella is shorter than the Dc, but longer in Mecynostomella . The forewing M in Tanjistomella separates from R5 and not R4+5 as in Mecynostomella . Mecynostomella can be separated from Panguilla by the shape of the Segment X, which in Pangullia is broad and has ventrally oriented lateral lobes.