Banyallarga (Histricoverpa) quincemil, Prather Table Of Contents, 2004

Prather Table Of Contents, Aysha L., 2004, Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae), Zootaxa 435 (1), pp. 1-76 : 30-31

Banyallarga (Histricoverpa) quincemil , new species

Figs. 29–30

Banyallarga quincemil is distinguished from B. acutiterga and sylvana by the acute apex of tergum X, which in B. quincemil is without apicoventral projections or dorsolateral lobes ( Fig. 29B). This new species is known only from Peru, while the other two species are Central American. The type specimens are rather badly rubbed, so details of coloration are unavailable.

Adult. Forewing length 10.5–11.1 mm (n=10).

Head golden brown. Maxillary palps golden brown. Antenna twice forewing length, golden brown. Forewing chestnut brown. Hind wing of male with basal semimembranous sleeve or pouch, enclosing brush of long setae; hind wing of female with short basal brush of pale setae.

Male. Lateral margin of sternum IV deeply excavated (as in Fig. 16). Sternum VII with pointed anteromesal process. Tergum IX with anterior marginal ridge extending mesally to posterior margin, covered dorsally by semisclerotized membrane bearing dense fine pilosity ( Fig. 29B); lateral ridge present; dorsal pleural setae fine and numerous; ventral pleural setae approximately 10. Preanal appendage longer than tergum X, slightly wider at middle, apical 1/4 rugose, slightly flexible, covered with long fine setae ( Fig. 29A). Segment X shallowly emarginate posteriorly; with short rounded paired dorsolateral projections ( Fig. 29B); in lateral view apex of tergum roundly tapered. Inferior appendage simple, with long setae ventrally and laterally on coxopodite; harpago of uniform diameter along length, with fine setae basally and peglike setae apically ( Fig. 29C). Phallus with Ushaped phallotremal sclerite, thornlike setae on endothecal membrane ( Fig. 29D).

Female. Sternum VII with pointed anteromesal process. Sternum VIII anterior marginal ridge darkly sclerotized; fine setae covering posterior surface of sternite ( Fig. 30C). Tergum IX with anterior marginal ridge not extending posteromesally, posterior margin indistinct from tergum X ( Fig. 30B); sternum IX with anterior and posterior lobes darkly sclerotized and striate, smoothly sclerotized anteromesally, with tiny punctations posterolaterally. Tergum X semimembranous, appendage roundly tapered ( Fig. 30B); sternum X with semisclerotized plates bearing fine setae lateral to anal opening. Vaginal apparatus anterior sclerite truncate anteriorly, posterolateral projections short, rounded; posterior sclerite twice length of anterior sclerite, enclosed within a semisclerotized sheath; dorsal connective membrane with regular pleating ( Fig. 30A).

Holotype male: PERU: Cuzco: Quincemil , viii.1962, Peña G. ( UMSP000065236 ; CNC).

Paratypes: PERU: Cuzco: Quincemil , viii.1962, Peña G. — 7 females ( CNC); 1 male, 1 female ( UMSP) .

Distribution. Peru.

Etymology. Named for the type locality in Peru.