Banyallarga (Banyallarga) vicaria (Walker)

Prather Table Of Contents, Aysha L., 2004, Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae), Zootaxa 435 (1), pp. 1-76 : 17-19

Banyallarga (Banyallarga) vicaria (Walker)

Figs. 10 , 11

Hydropsyche vicaria Walker 1852:114 [Type locality: Venezuela; BMNH; female].

Ganonema vicaraium — McLachlan 1871:127 [male]. — Betten & Mosely 1940:218 [redescription of type].

Banyallarga vicaria — Flint 1983:77.

Banyallarga testacea Navás 1916:78 [Original type locality: Colombia, Muzo ; collection Appolinaris, now lost?; male]. NEW SYNONYM.

NEOTYPE: VENEZUELA: Mérida: Parque Nacional Sierra Nevada, Mucuy Fish Hatchery, 7 km E Tabay, Queb. La Mucuy , 2012 m, 18.i.1994, Holzenthal Cressa & Rinc —n, male ( UMSP000000021 ; UMSP).

Walker (1852) described Hydropsyche vicaria (Hydropsychidae) from a female specimen. McLachlan (1871) described a male specimen from Venezuela, identifying the species as that described by Walker and recognizing H. vicaria as belonging to the calamoceratid genus Ganonema . Navás (1916) described two Colombian species, testacea and crenata , in a new genus, Banyallarga , and designated testacea as the type species of the genus. In a review of Neotropical calamoceratids, Flint (1983) recognized Walkerís species as belonging to the same generic unit as B. testacea , while from the wing venation illustrated, he placed B. crenata as a species of Phylloicus . The types of both Navás species were in the collection Appolinaris, and now are presumed lost ( Flint et al. 1999a). No other material identified as B. testacea is known. Therefore, B. testacea is known only from Navás's illustrations of the wings and a lateral view of the male terminalia. The latter illustration is highly generalized, and could pertain to a number of species, of which two, B. columbiana and B. vicaria , are found in the mountain range containing the original type locality of B. testacea ,. Because of this potential confusion, I am designating a neotype (ICZN 1999, Article 75) for B. testacea , to define the species objectively. Banyallarga vicaria is the better known of the two species and therefore more appropriate for fixing the identity of B. testacea ( B. columbiana being known only from the holotype, which is in poor condition), According to Article 67.1.2, (ICZN 1999), B. testacea , as a junior synonym, remains the type species of Banyallarga .

Banyallarga vicaria can be separated from B. columbiana by the lack of a sharp mesal ridge on the dorsal surface of male tergum X, the shallow notch of the apical margin, and the more pronounced apical tapering. From the similar B. villosa , it can be separated by the shallow, as opposed to deep, mesal notch on the apex of tergum X.

Adult. Forewing length 9.9–11.9 (n=97).

Head chestnut brown, with dorsomesal crest of dark and golden setae. Maxillary palps chestnut brown. Antenna twice forewing length, dark brown, each flagellomere pale basally and with narrow patch of pale sensilla on anterior surface. Dorsal pterothorax chestnut brown, golden brown mesally; ventrolateral thorax and legs golden brown, hind tibia of male without posterior fringe. Forewing mottled dark brown and gold, nygma, thyridium, and anal cell marked in gold. Hind wing of male with basal semimembranous sleeve or pouch, enclosing brush of long setae, female with thick basoposterior brush of golden setae.

Male. Tergum IX posterior margin rounded ( Fig. 10B ); lateral ridge present; dorsal pleural setae approximately 15; sternum IX with heavy anterior ridge. Preanal appendage shorter than tergum X, tapered apically, with long setae on apical half. Tergum X tapered in dorsal and lateral views, shallowly notched posteromesally ( Fig. 10B ). Inferior appendage simple, with long setae ventrally and laterally on coxopodite; harpago rounded apically, of uniform circumference, with short fine setae dorsally and tiny peglike setae apically. Phallus with phallotremal sclerite horseshoe­shaped, ventral sclerite a short tube; endotheca with large round, spiculate lateral lobes and long digitate dorsomesal lobes ( Fig. 10D, E ).

Female. Sternum VIII anterior marginal ridge darkly sclerotized; posterior margin marked by single row of stout setae. Tergum IX with anterior marginal ridge extending mesally length of segment; sternum IX with single pair of lobes darkly sclerotized and striate; anterolateral surface concave, surface rugose. Tergum X semisclerotized posteromesally, appendage without clear suture line; roundly tapered posteromesally ( Fig. 11B ); sternum X with fine setae lateral to anal opening. Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite truncate anteriorly, posterolateral projections rounded; posterior sclerite ovoid ( Fig. 11A ).

BOLIVIA: La Paz: Unduavi / Coroico , 2500 m, 19–25.xi.1984, Peña G. — 1 male, 1 female ( NMNH) ; VENEZUELA: B. vicaria holotype female ( BMNH) ; Barinas: La Chimenea, 5 km Sur La Soledad , 1500 m, 28–29.v.1975, Dietz — 1 female ( NMNH) ; San Isidro , 24.ix.1975, Dietz — 4 males ( NMNH) ; 25.ix.1925, Dietz — 1 male ( NMNH) ; San Isidro , 14 km Sur La Soledad, 1500 m, 30–31.v.1975, Dietz — 1 male ( NMNH) ; Parque Nacional Sierra Nevada, Queb. San Juan in Sta. Rosa , 08°27'52"N 70°50'55"W, 1000 m, 21.iii.1997, Holzenthal — 3 males ( UMSP) ; Lara: Yacambú , 1200 m, 13.v.1981, Townes — 11 males, 14 females ( NMNH) ; Parque Nacional Dinira, Quebrada Las Pinetas , 09°46'19"N 70°01'45"W, 1889 m, 22.vi.2001, Holzenthal, Blahnik, Paprocki, & Cressa — 2 males, 1 female ( IZAM); 3 males, 7 females ( UMSP) ; Parque Nacional Yacambú , 6– 8.iv.1981, Menke & Hollenberg — 2 males ( NMNH) ; 13 km SE Sanare , 1560 m, 1– 5.viii.1981, Heppner — 5 males, 6 females ( NMNH) ; 28–31.viii.1981, Heppner — 6 males ( NMNH) ; 10 males, 10 females ( UMSP) ; 6–11.viii.1981, Heppner — 12 males, 15 females ( NMNH) ; El Blanquito , 1350 m, 1–3.viii.1976, Rosales & Joly — 2 males, 4 females ( NMNH) ; Mérida: Río Albarregas, ca. 1 km NW Univ. de los Andes , 08°38'02"N 71°09'29"W, 1980 m, 17.i.1994, Holzenthal, Cressa, & Rincón — 1 male, 1 female ( IZAM); 1 female ( UMSP); 24.iv.1995, Holzenthal, Gutic, & Segnini — 1 female ( UMSP) ; Río La Gonzalez, road between Merida & Jaji, 08°35'05"N 71°17'58"W, 1870 m, 25.iv.1995, Holzenthal, Cressa, & Gutic — 8 females ( UMSP) ; Río Montalban, Rt. 4 19 km W Merida, 20.ii.1976, C & O Flint — 3 females ( NMNH) ; Tabay , 2200 m, 1.v.1981, Townes — 1 male ( NMNH) ; 30.iv.1981, Townes — 1 female ( NMNH) ; Parque Nacional Sierra Nevada, Mucuy Fish Hatchery, 7 km E Tabay, Queb. La Mucuy , 2012 m, 18.i.1994, Holzenthal, Cressa, & Rincón — 2 males ( NMNH) ; 4 males, 9 females, B. testacea neotype male ( UMSP) ; 26.iv.1995, Holzenthal, Gutic, & Segnini — 4 males, 3 females ( UMSP) ; Trujillo: Quebrada Potrerito , 7.5 km NE Bocono, 09°16'26"N 70°13'06"W, 1530 m, 29– 30.iv.1995, Holzenthal, Cressa, & Gutic — 9 females ( UMSP) .

Distribution. Bolivia, Colombia, Venezuela.

Figures

FIGURE 10. Banyallarga (Banyallarga) vicaria. Male (UMSP000009897): A—lateral view; B— dorsal view; C—ventral view; D—phallus, lateral view; E—phallus, caudoventral view.

FIGURE 11. Banyallarga (Banyallarga) vicaria. Female (holotype): A—sterna IX, X and vaginal apparatus, ventral view; B—terga IX and X, dorsal view; C—sternum VIII, ventral view.