Tagalopsyche udagama, Holzenthal, Ralph W. & Andersen, Trond, 2007

Holzenthal, Ralph W. & Andersen, Trond, 2007, Review of the caddisfly genus Tagalopsyche with the description of new species and a related new genus (Trichoptera: Leptoceridae: Mystacidini), Zootaxa 1483, pp. 1-32 : 24-25

Tagalopsyche udagama , new species

Fig. 16

As discussed above, this species is similar to T. fletcheri and T. apratita , but differs in details of the inferior appendage and sternum IX.

Adult. Length of forewing: male 5.5–6.0 mm (n=3). Color dark brown, with scattered white hairs and small patches of white hairs.

Male. Abdominal segment IX annular, setose, especially ventrally; in lateral view anterior and posterior margins nearly parallel, shortest at insertion of preanal appendage; tergum IX broad; posterior extension of sternum IX short, less than 1/3 length of sternum, in ventral view base narrow, apex excised, overall shape quadrate, apical margin with shallow, U-shaped excision, apicolateral corners rugose, setose, in lateral view subtriangular; posterior process of segment IX extended dorsad to form heavily sclerotized projection, surface entirely rugose, in caudal view projection triangular, in lateral view subtruncate, in ventral view rounded, entire. Preanal appendage lanceolate, heavily setose, slightly shorter than segment X, apex subacute. Inferior appendage spatulate, setose, apex curved mesad, in lateral view subrectangular, dorsal and ventral edges nearly parallel, apicoventral edge irregularly rounded, mesolateral surface with irregular setose ridge, basoventrally without processes, mesobasally with subtriangular process bearing apical setae; dorsolaterally with pair of short, broad protuberances, in dorsal view apex rounded. Phallic apparatus short, compact; phallobase tubular, apparently fused with phallicata, basoventrally with short sclerotized flange apparently articulating with base of fused inferior appendages; phallicata strongly down turned apically at nearly 90 degrees to phallobase, apex of phallicata with irregular lateral sclerotized flanges and mesal membranous region, dorsolateral corners digitate, projecting; parameres absent; phallotremal sclerite not discernable.

Female. Unknown.

Holotype male: INDIA: Mysore: Anjadi, 23.i.1959, F. Schmid ( CNC).

Paratypes: same data as holotype, — 2 males ( CNC); INDIA: Kerala: Kalpatti, 13.i.1962, F. Schmid — 2 males ( CNC). SRI LANKA: Galle: Udagama , Kanneliya Jungle, 6–12.x.1973, Malaise — 1 male ( NMNH); Kandy: Hasalaka Irrigation Bungalow, 5 mi. NW Mahiyangana, 30.iii-9.iv.1971, P. & P. Spangler, blacklight — 1 male ( NMNH).

Distribution. India, Sri Lanka.

Etymology. Named for the locality in Sri Lanka, where the species was collected. The epithet is to be regarded as a noun in apposition.

Figures

FIGURE 16. Tagalopsyche udagama, new species. Male genitalia: A—abdominal segments IX & X, lateral; B— same, dorsal; C—abdominal segment IX, ventral; D—inferior appendages and process of sternum IX, caudal; E—phallic apparatus, lateral; F—same, caudal.