Ochrotrichia pora Angrisano & Sganga

Angrisano, Elisa B. & Sganga, Julieta V., 2009, New species of Hydroptilidae (Trichoptera) from Salto Encantado Provincial Park (Misiones province, Argentina), Zootaxa 2162, pp. 57-68 : 62

Ochrotrichia pora Angrisano & Sganga , new species

Figures 13–16 , 32, 37

Male. Forewing length 2.1 mm. Head with 3 large ocelli, and mesoscutellum with transverse suture. Abdominal segment VIII short, wider than long. Segment IX rounded anteriorly, with its tergum lightly sclerotized apically. Segment X conic, asymmetric, with the right lobe more sclerotized than the other structures, with a short, curved spine at its base and a dorsal one; apex of the segment with a sharp point, curved to the left ( Fig. 13 ).

Inferior appendages long, rounded posteroventrally, with 2 rows of long heavy spines in the margin of its inner side, and 4 rows of bigger spines mesally ( Fig. 13–15 ). Phallus simple, with a curved point at the apex ( Fig. 16 ).

Diagnosis. The geographically nearest species is O. concha Bueno-Soria & Santiago-Fragoso 1992 , which differs by having male inferior appendages deeply excavated posteroventrally (trumpet-like), and tergum X with 2 long processes on the left side and a long lightly sinuous process on the right side. It is closely related to O. avicula Bueno-Soria & Holzenthal 2008 from Costa Rica, differing in the distribution of the spines of the inferior appendages that in this species are located in the apical and midventral areas, in the length of segment IX that is shorter (it does not reach segment VII), and in the basal spine of segment X that is absent.

Holotype male. Argentina: Misiones: Parque Provincial Salto Encantado, Salto Acutí , Malaise trap, 8–14.i.2006, Angrisano & Bravo leg.

Paratypes. Argentina: Misiones: Parque Provincial Salto Encantado, Salto Acutí , Malaise trap, 8–14.i.2006, Angrisano & Bravo leg., 3 males.

Etymology. From indigenous Guaraní word porâ , beautiful. This species is dedicated to Salto Encantado Provincial Park.

Figures

FIGURES 13 – 19. Figs. 13 – 16, Ochrotrichia pora, n. sp., male genitalia: 13:, dorsal, 14: lateral, 15: ventral. 16: Phallus. Figs. 17 – 19, Paratrichia acuti, n. sp., male genitalia: 17: lateral, 18: ventral. 19: Phallus.

FIGURES 31 – 43. Figs. 31, 36, Alisotrichia cainguas, n. sp.: 31: adult, lateral. 36: male genitalia. Figs. 32, 37, Ochrotrichia pora, n. sp.: 32: adult, ventral. 37: male genitalia. Figs. 33, 38, Paratrichia acuti, n. sp.: 33: adult, lateral. 38: male genitalia. Figs. 34, 40, Rhyacopsyche garuhape, n. sp.: 34: adult, ventral. 40: male genitalia. Figs. 35, 39, 41, Oxyethira tamandua, n. sp.: 35: adult, ventral. 39: male genitalia, dorsal. 41: male genitalia, lateral. Figs. 42, 43, Oxyethira poapi, n. sp., male genitalia: 42: lateral. 43: phallus apex, detail.