Review of the caddisfly genus Tagalopsyche with the description of new species and a related new genus (Trichoptera: Leptoceridae: Mystacidini) Author Holzenthal, Ralph W. Author Andersen, Trond text Zootaxa 2007 1483 1 32 journal article 10.5281/zenodo.176909 cba06e61-59ce-43f4-ad30-05c67ff7ea3b 1175-5326 176909 Tagalopsyche jolandae , new species Figs. 12–14 This species, with broad wings, also has distinctly shaped inferior appendages which are overall deltoid in shape and narrowest in the middle. The shape of the dorsal sclerotization of sternum IX is also unique and distinctly elongate oval. The genitalia bear a slight resemblance to T . brunnea , but in T. jolandae the forewings are shorter and broader. Adult. Length of forewing: male 5.7–6.5 mm (n=3), female 5.5–6.3 mm (n=2). Color brown (in alcohol). Male . Abdominal segment IX annular, setose, especially ventrally; in lateral view anterior and posterior margins parallel, shortest at insertion of preanal appendage; tergum IX short, not produced posteriorly; posterior extension of sternum IX short, 1/2 length of sternum, in ventral view base narrow, apex entire, overall shape quadrate, apical margin with shallow, U-shaped excision, apicolateral corners rugose, setose, in lateral view rounded; posterior process of segment IX extended dorsad to form heavily sclerotized projection, surface entirely rugose, in caudal view projection ovate, in lateral view elongate oval, in ventral view subtriangular, entire. Preanal appendage lanceolate, heavily setose, slightly shorter than segment X, apex subacute. Inferior appendage spatulate, setose, apex curved mesad, in lateral view narrow subbasally, widening apically, apicoventral corner extended, subacute, mesolateral surface with small triangular setose process, basoventrally with short, irregular processes bearing apical setae, 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 low, short, digitate protuberances, in dorsal view apex rounded. Phallic apparatus short, compact; phallobase tubular, apparently fused with phallicata, basoventrally with short sclerotized flange that apparently articulates with base of fused inferior appendages; phallicata strongly down turned apically at nearly 90 degrees to phallobase, dorsolateral corners digitate, projecting; parameres absent; phallotremal sclerite not discernable. FIGURE 12. Tagalopsyche jolandae , new species . Wings: A—forewing; B—hind wing. Female. Segment IX short, in lateral view posterior margin slightly rounded, anteroventral margin indistinct, semimembranous. Tergum X long, almost as long as preanal appendages (but both segment X and preanal appendages short compared to other species), in lateral view broadly triangular, apex acute, ventrally with secondary plate-like sclerite, in dorsal view broadly rounded apically (secondary sclerite also broadly rounded); basolaterally with pair of short papillate processes. Preanal appendage short, digitate, setose. Lamella very large, very narrowly constricted basally, in lateral view directed ventrad, dorsal margin broadly rounded, ventral margin straight, apex rounded, outer and inner surfaces setose; in ventral view lamella straight, mesal surface concave. Gonopod plate basolateral edges produced in flanges, apex with broad excavation, surface with fine striation. Spermathecal sclerite complex, in ventral view broadly oval, apex broad, laterally with broad, auriculate, semimembranous flanges, medially with weakly developed keyhole-shaped sclerite. FIGURE 13. Tagalopsyche jolandae , 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. Holotype male: BRUNEI : Temburong: Temburong River just upstream jct. Sungai Wong, 114°40’E , 4°36’N , 140 m , 4.iv.1990 , M. Coode ( UMSP 000108204) ( UMSP ). FIGURE 14. Tagalopsyche jolandae , new species . Female genitalia: A—abdominal segments IX & X, lateral; B—same, dorsal; C—same, ventral (inset: spermathecal sclerite complex). Paratypes : MALAYSIA : Sabah: 60 km west Lahad Datu, DVFC , Sg. Segama on bridge, 117°48’E , 4°58’N , 150 m , 14.iii.1987 , J. Huisman — 1 male ( RMNH ); confl. Sg. Maga, Sg. Pa Sia, 115°40’E , 4°26’N , 1210 m , 2.iv.1987 , J. Huisman — 1 male ( UMSP ); 75 km west Lahad Datu, confl. Sg. Sabran, Sg. Danum, 117°41’E , 4°57’N , 200 m , 23.x.1987 , J. Huisman — 1 female ( RMNH ); Ulu Rurun, 115°40’30”E , 4°22’N , 1400 m , 20.xii.1986 , J. Huisman — 1 female ( UMSP ). Distribution. Brunei , Malaysia (Sabah). Etymology. We take great pleasure in naming this species in honor of Jolanda Huisman in recognition of her collecting efforts over several years on the island of Borneo which has resulted in the discovery of many new and interesting species of caddisflies.