Alepia arenivaga, Bravo, Freddy, 2008

Bravo, Freddy, 2008, Three new species of Alepia Enderlein (Diptera, Psychodidae, Psychodinae) from the Brazilian semi-arid region, Zootaxa 1805, pp. 52-60: 55

publication ID

http://doi.org/ 10.5281/zenodo.182661

persistent identifier

http://treatment.plazi.org/id/14228781-3A22-7942-7CEA-D9B1B47BFE9F

treatment provided by

Plazi

scientific name

Alepia arenivaga
status

sp. nov.

Alepia arenivaga   sp. nov.

Figs. 12–22 View FIGURES 8 – 12. 8 – 11 View FIGURES 13 – 22

Type material. BRAZIL, Pilão Arcado (10 ° 07’ S 42 ° 53 ’ W), holotype male, 05.XII. 2005, Viera, R. & Alvim, E. (MZUEFS); 1 paratype male, same locality as holotype, 03.XII, 2005, Alvim, E. & Vieira, R. (MZUEFS); 1 paratype male, same locality as holotype, 27.VI. 2006, Viera, R. & Cordeiro, D. (MZUEFS).

Habitat. Pilão Arcado is located on the sand dunes of the middle São Francisco River, a region of hyperxerophytic Caatinga (Barreto et al. 1999) that floods during the rainy season. The vegetation of Pilão Arcado is an open seasonally deciduous arboreal Caatinga (SEI 2007).

Etymology. arenivaga Latin   , refers to the sand dune habitat where this species was collected.

Diagnosis. Eyes separated by 3 facet diameters; wing membrane with small bristles in the costal and cubital areas; gonostylus with small basal lobe having long bristles; cercus piriform, with cluster of accessory tenacula confined to a dark area near the base; aedeagal apodeme 8 -shaped, longer than the length of paramere.

Description. Male. Head ( Fig. 13 View FIGURES 13 – 22 ): vertex hair patch divided by a narrow medial band without bristles, Vshaped; eyes separated by 3 facet diameters; interocular suture arched; frons hair patch undivided, with the anterior margin straight or with small median concavity. Antenna: scape cylindrical, 2.0X the length of pedicel ( Fig. 14 View FIGURES 13 – 22 ); pedicel spherical ( Fig. 14 View FIGURES 13 – 22 ); flagellum with 14 flagellomeres, fusiform; flagellomere 1 with poorly developed neck ( Fig. 14 View FIGURES 13 – 22 ), others flagellomeres with necks ( Figs 14, 15 View FIGURES 13 – 22 ); flagellomere 14 smaller than previous ones, and with apiculus ( Fig. 15 View FIGURES 13 – 22 ); ascoids not visible. Palpus formula = 1.0:2.3:2.2:3.2; last palpomere striated ( Fig. 16 View FIGURES 13 – 22 ). Wing ( Fig. 17 View FIGURES 13 – 22 ): wing membrane with infuscate patterns: large dark area near the middle of the wing, with smaller and darker spots in the costal region, base of M 1 + 2, apex of the tip of the wing, and apex of M 2 and M 3; bristles present in the costal and cubital regions, similar to the species A. montana   sp. nov. ( Fig. 7 View FIGURES 1 – 7 ); Sc short; radial fork at the same level as medial fork; R 5 ending at apex. Male terminalia: Hypandrium reduced, only a post-hypandrial plate present, with length equal to 0.5X the length of aedeagal apodeme ( Fig. 18 View FIGURES 13 – 22 ); apex of post-hypandrial plate sickle-shaped ( Fig. 18 View FIGURES 13 – 22 ). Gonocoxite short, 1 / 3 X the length of gonostylus, with few very short bristles on the dorsal surface and few long bristles on the ventral surface ( Figs. 18, 19 View FIGURES 13 – 22 ). Gonocoxal apodeme 1 / 2 X the length of aedeagal apodeme, with sclerotized posterior band area ( Fig. 18 View FIGURES 13 – 22 ). Gonostylus slightly curved ( Figs. 19, 21 View FIGURES 13 – 22 ), digitiform, except by the presence of a basal tubercle with long bristles ( Figs. 18, 21 View FIGURES 13 – 22 ), some alveoli present along entire surface ( Fig. 18 View FIGURES 13 – 22 ). Epandrium subquadrate, naked; foramen not visible. Cerci piriform, narrow apically, wide basally ( Fig. 19 View FIGURES 13 – 22 ), with apical tenaculum, short, filiform ( Figs. 19, 20 View FIGURES 13 – 22 ), with two short bristles near the tenaculum ( Fig. 20 View FIGURES 13 – 22 ); cluster of accessory tenacula confined to dark area near the base ( Fig. 19 View FIGURES 13 – 22 ), with clavate tips ( Figs. 19, 22 View FIGURES 13 – 22 ). Sternite 10 short, ending before distal margin of epandrium; apex rounded. Tergite 10 narrow. Aedeagus wider than paramere, with rounded apex, ending before the paramere ( Figs. 18, 19 View FIGURES 13 – 22 ); aedeagus 0.9X the length of the paramere. Paramere long, subtriangular, narrows apically ( Fig. 18 View FIGURES 13 – 22 ). Aedeagal apodeme 8 -shaped, wider proximally than apically, longer than the length of paramere ( Figs. 12 View FIGURES 8 – 12. 8 – 11 , 18 View FIGURES 13 – 22 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Psychodidae

Genus

Alepia