Banyallarga (Histricoverpa) fortuna (Resh)

Prather Table Of Contents, Aysha L., 2004, Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae), Zootaxa 435 (1), pp. 1-76 : 26-27

Banyallarga (Histricoverpa) fortuna (Resh)

Figs. 21–22

Undescribed genus, undescribed species "A" McElravy et al. 1981:153 — Denning et al. 1983:190.

Murielia fortuna Resh , in Denning et al. 1983:190 [Type locality: Panama, Rio Chiriqui at Fortuna ; UCB; male;].

Banyallarga fortuna — Flint et al. 1999b:73.

Banyallarga fortuna and B. tapanti are the only species of Histricoverpa that have the apex of tergum X rounded in lateral view ( Figs. 21A , 35A ). Banyallarga fortuna is distinguished from B. tapanti by the absence ( Fig 21A, B ) of the dorsomesal ridge present on the tergum X of B. tapanti ( Fig. 35A, B ).

Adult. Forewing length 8.4–9.9 mm (n=6).

Head golden brown. Maxillary palps golden brown. Antenna twice forewing length, chestnut brown, each flagellomere pale basally and with narrow patch of pale sensilla on anterior surface. Dorsal pterothorax golden brown; ventrolateral thorax and legs golden brown, metathoracic tibia of male with long posterior setal fringe. Forewing mottled chestnut and golden brown. Hind wing of male with basal semimembranous sleeve or pouch, enclosing brush of long setae.

Male. Lateral margin of sternum IV deeply excavated (as in Fig. 16 ). Sterna VI and VII with pointed anteromesal processes. Tergum IX with distinct anterior marginal ridge; dorsal pleural setae numerous. Preanal appendages much longer than tergum X, slightly flexible apically; apical 2/3 covered with long fine setae ( Fig. 21A ). Segment X shallowly emarginate posteriorly ( Fig. 21B ), forming two short rounded lateral projections; in lateral view posterior margin rounded. 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. 21C ). Phallus with U­shaped dorsal phallotremal sclerite, ventral sclerite a short, indistinct sclerotized tube, thornlike setae cover ventral and anterolateral surface of endothecal membrane ( Fig. 21D ).

Female. Sternum VII with pointed anteromesal process. Sternum VIII anterior marginal ridge darkly sclerotized; short stout setae in two rows on posterior margin ( Fig. 22C ). Tergum IX without mesal ridge, posterior margin rounded ( Fig. 22B ); sternum IX with anterior and posterior lobes darkly sclerotized and striate. Tergum X semimembranous, appendage roundly tapered ( Fig. 22B ); sternum X with semisclerotized plates bearing fine setae lateral to anal opening ( Fig. 22A ). Vaginal apparatus anterior sclerite shallowly emarginate anteriorly, posterolateral projections short; posterior sclerite ovoid ( Fig. 22A ).

COSTA RICA: Cartago: near Tuis, 914 m, 16–22.vii.1993, Hanson— 1 male ( EMUS) ; Heredia: Parque Nacional Braulio Carrillo, Río Peje , Puesto El Ceiba, 10°19'37"N 84°04'41"W, 480 m, 29–31.v.1990, Holzenthal, Blahnik, & Muñoz— 1 female ( UMSP) ; Límon: Limon, 16 km W Guapiles , 400 m, ii–iii.1989, Hanson— 2 males ( UMSP) ; PANAMA: Chiriqui: Fortuna Dam Site nr. Hornitos, 08°55'00"N 82°16'00"W, 1050 m, 17–23.viii.1977, Wolda— holotype male ( UCB) ; 25.iv–1.v.1979, Wolda — 1 female ( NMNH) .

Distribution. Costa Rica, Panama.

Figures

FIGURE 16. Banyallarga (Histricoverpa) acutiterga. Male (UMSP00000051): abdominal segments IV–X, lateral view. FIGURE 17. Banyallarga (Histricoverpa) acutiterga. Male (A, D, E, holotype; B, C, UMSP000000056): A—lateral view; B—dorsal view; C—ventral view; D—phallus, lateral view; E—phallotremal sclerites, dorsal view.

FIGURE 21. Banyallarga (Histricoverpa) fortuna. Male (A–C, UMSP000032411; D, UMSP000065232): A—lateral view; B—dorsal view; C—inferior appendage, ventral view; D— phallus, lateral view.

FIGURE 22. Banyallarga (Histricoverpa) fortuna. Female (UMSP000218872): A—sterna IX, X and vaginal apparatus, ventral view; B—terga IX and X, dorsal view; C—sternum VIII, ventral view.

FIGURE 35. Banyallarga (Histricoverpa) tapanti. Male (holotype): A—lateral view; B—dorsal view; C—inferior appendage, ventral view; D—phallus, lateral view; E1, apex of phallus, ventral; E2, phallotremal sclerite, dorsal.