New species of Xiphocentron Brauer 1870 (Trichoptera: Xiphocentronidae) from Northeastern Brazil Author Vilarino, Albane Author Calor, Adolfo R. text Zootaxa 2015 3914 1 journal volume 42294 10.11646/zootaxa.3914.1.2 ad681674-8699-484f-8002-2c14867ddf3d 1175-5326 244504 475FE496-2D30-4B92-935F-13902F1BB464 Xiphocentron ( Antillotrichia ) kamakan new species Figs. 1 A–G, 2 Diagnosis. The new species resembles Xiphocentron ( Antillotrichia ) rhamnes Schmid 1982 , X. ( Antillotrichia ) serestus Schmid 1982 , and X. ( Antillotrichia ) mnesteus Schmid 1982 , for each of which Schmid described a shape discontinuity (twist) on the connection between the first and second articles of the inferior appendage (Schmid’s hypothesis of homology) instead of a linear continuity between the two segments. This character is also present in the new species, but the new species differs from these congeners by each inferior appendage having a sclerotized process bearing short spines on its basomesal margin and two spinulous regions on the ventral edge: One basal and one on the “elbow” formed by the shape discontinuity between the articles of each inferior appendage. Description. Male adult. Length of each forewing 3.3–4.1 mm (n= 5). Overall color (in alcohol) nearly uniformly medium brown. Forewings covered with fine, short, and brown setae; middle of each forewing with small circular patch of white setae ( Fig. 2 ); forewings with forks 2 and 4; hind wings each with only fork 2 ( Fig. 1 B). Apical spur of each hind tibia not modified ( Fig. 1 A). Segment V bearing pair of anteroventral glands without external glandular processes. Male genitalia . Tergum IX, in lateral view ( Fig. 1 E), subtriangular, wider basally, narrower and rounded apically; anterior margin sinuous, dorsal margin nearly straight; in dorsal view ( Fig. 1 C), subtrapezoidal, wider basally, narrower apically; anterior margin with deep, U-shaped, mesal emargination; posterior margin sinuous with slight mesal emargination. Sternum IX, lateral view ( Fig. 1 E), long, subtriangular, about 2 times as long as tall, taller basally, narrower and slightly pointed apically; anterior margin on each side with short, slender, rounded, mesal projection with small slender anterior flange; ventral margin rounded; posterodorsal margin on each side sinuous, slightly concave at midlength; in ventral view ( Fig. 1 D), obovate, anterior margin straight with short lateral projections; posterior margin rounded with shallow mesal emargination. Segment X semimembranous; in lateral view ( Fig. 1 E), oblong, apically bilobated, lobes rounded, single ventral lobe smaller than pair of dorsal lobes; in dorsal view ( Fig. 1 C), subtriangular, wider basally, narrower and divided apicodorsally into two rounded, dorsolateral lobes; in ventral view ( Fig. 1 D), ventral lobe acute posteromesally. Preanal appendages long, subcylindrical, setose; in lateral view ( Fig. 1 E), each slightly sinuous, widest basally and in posterior half, slender before middle giving general sinuous aspect with dorsal margin nearly straight and ventral margin concave, apex rounded; in dorsal view ( Fig. 1 C), nearly parallel-sided, slightly narrower preapically, basomesal margin with several straight setae. Inferior appendages about as long as preanal appendages, surfaces covered with fine setae; in lateral view ( Fig. 1 E), each sinuous, widest basally, with a strong shape discontinuity between the two articles of inferior appendage, its ventral margin with deep and rounded excision before middle, with undulated and spinulous elbow-like shape near middle, and with slender, clavate apical half; basomesal and midmesal ventral margins before and beyond excision darkly sclerotized and bearing short spines, mesal margin with sclerotized process bearing short spines; in dorsal and ventral views ( Figs. 1 C, 1D), angled mesad at one-third length, then straight. Aedeagus long, slender, tubular, with the apex slightly enlarged ( Fig. 1 G). FIGURE 1. Xiphocentron ( Antillotrichia ) kamakan Vilarino & Calor , new species , male. A—apex of left hind tibia and spurs and basitarsus; B—right wings, dorsal; C—genitalia, dorsal; D—genitalia, ventral; E—genitalia, left lateral; F—aedeagus apex, left lateral; G—aedeagus apex, dorsal. FIGURE 2. Habitus, showing left wing pattern. Holotype male (alcohol): BRAZIL : Bahia: Camacan, RPPN Serra Bonita, Córrego 3, Chuchuzeiro, 15º23’03”S , 039º34’00”W , iv.2011 , Malaise trap, Calor A.R., Lecci L.S., Pinho L.C. & Moretto R. ( MZUSP ). Paratypes : BRAZIL : Bahia: same data as holotype , 1 male (alcohol) ( MZUSP ); same data except, 15º23’28”S , 039º33’56”W , 820 m , 31.vii.2008 , light UV/ white, Calor A.R., Lecci L.S., Pinho L.C. & Moretto R., 1 male (alcohol) ( MZUSP ); same except, Córrego 1, atrás da caixa d’água, 15º23’26.6”S , 039º33’57.2”W , 26–27.xi.2011 , UV Light Pan trap, 3 males (alcohol) ( UMSP ); same except, Córrego 1, próximo ao Centro de Pesquisa, 15º23’28”S , 39º33’56”W , vii.2008 , Malaise trap, 1 male (alcohol) ( UMSP ); same except, Córrego 1, próximo ao Centro de Pesquisa, 15º23’28”S , 39º33’56”W , ix.2008 , Malaise trap, 1 male (alcohol) ( UFBA ); Elísio Medrado, Serra da Jibóia, Fazenda Jequitibá, GAMBA Reserve, Córrego Caranguejo, 12º52’21.5”S , 39º28’56.5”W , 07.xi.2010 , Silva-Neto, A.M.G. & Araujo, M., 1 male (alcohol) ( UFBA ); Varzedo, Serra da Jibóia, Fazenda Baixa Grande, Propriedade do Sr. Getulio, Riacho 2, 12 º57’45.3’’S, 39º27’13.1”W , 280 m , 09.ii.2014 , UV Light Pan trap, Calor A.R. & Vilarino A., 1 male (alcohol) ( UFBA ). Etymology. Noun in apposition, with unchanging termination, in reference to the Kamakan people who were indigenous to the Camacan region where the holotype was collected. Distribution. Brazil (BA).