Tagalopsyche sisyroides Banks

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 : 14

Tagalopsyche sisyroides Banks

Fig. 9

Tagalopsyche sisyroides Banks, 1913: 177 , figs. 2, 7 [Type: Los Baños, Philippine Islands (P.I. Baker), male, MCZ]. — Banks 1916: 213; — Ulmer 1930: 404, 492, 498; 1951: 15, 417, 420–421; 1955: 515–517; 1957: 438, 451.

Tagalopsyche sisyroides is easily recognized by the elongate, deeply excised posterior extension of sternum IX and by the spatulate ventral lobe on the inferior appendage. In the former character only, it is similar to T. kjaerandseni , new species, but the 2 species are distinct in all other aspects. The wings of T. sisyroides as indicated in the literature ( Banks 1913; Ulmer 1930) are broad and truncate, similar to those of T. jolandae , new species.

Adult. Length of forewing: unknown, wing broken/missing. Color dark brown.

Male. Abdominal segment IX annular, setose, especially ventrally; in lateral view anterior margin nearly straight, posterior margin extended ventrolaterally, shortest at insertion of preanal appendage; tergum IX short, not produced posteriorly; posterior extension of sternum IX long, approximately equal in length to sternum, in ventral view base wide, apex deeply excised, forming paired processes, paired processes subulate, apices rounded, apical margin with deep V-shaped excision, in lateral view digitate, slightly tapering to rounded apex; posterior process of segment IX extended dorsad to form heavily sclerotized projection, surface smooth, in caudal view projection narrowly triangular, lateral margins concave, in lateral view elongate, in ventral view subtriangular, entire. Preanal appendage lanceolate, heavily setose, slightly shorter than segment X, apex subacute. Inferior appendage crescentric, setose, in lateral view apically rounded, with digitate dorsal lobe and heavily sclerotized, slightly upturned, spatulate ventral lobe, mesolateral surface with small setose process, basoventrally without processes, mesobasally with subtriangular process bearing apical setae. Tergum X saddle-shaped, broad, about 1/2 width of segment IX, in lateral view triangular, apex acute, dorsolaterally with pair of short, digitate protuberances, in dorsal view apex subacute. Phallic apparatus short, compact; phallobase tubular, apparently fused with phallicata, basoventrally with long sclerotized flange that apparently articulates with base of fused inferior appendages; phallicata strongly down turned apically at nearly 90 degrees to phallobase, apex of phallicata with apicoventrally rounded lateral sclerotized flange and mesal membranous region, dorsolateral corners rounded, projecting; parameres absent; phallotremal sclerite not discernable.

Female. Unknown.

Material examined: PHILIPPINES: Los Baños, P.I. Baker — male holotype (MCZ).

Distribution. Indonesia (Sumatra), Philippines.

Figures

FIGURE 9. Tagalopsyche sisyroides Banks. 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.