Atrichobrunettia minuta Bravo

Bravo, Freddy, 2006, The taxonomy of Neotropical Brunettiina (Diptera, Psychodidae, Psychodinae, Mormiini), with descriptions of ten new species from Brazil and comments on the generic classification of the subtribe, Zootaxa 1134, pp. 1-28 : 22-23

Atrichobrunettia minuta Bravo , sp. nov. ( Figs. 34–40 )

Type material. BRAZIL, Bahia, Sauípe (12o 22’ S 37o 56’ W), holotype male, 14.XI.2004, F. Bravo col. (MZUEFS); Amazonas, Silvis (Saraça), 2 paratype males, 30.VI.1997, without collector’s name ( INPA).

Etymology. minutus Latin, refers to the small size of the species.

Diagnosis. Antenna with 13 flagellomeres; radial fork distal to medial fork; base of distiphallus raquet shaped; shafts of distiphallus ending before apex of post­hypandrial plate; aedeagal apodeme ending before gonocoxal bridge.

Description. Male. Eyes contiguous, having length of 4 facet rows ( Fig. 34 ). Antenna with 13 flagellomeres; scape cylindrical, 1.5X length of pedicel; pedicel spherical; flagellomeres nodiform, asymmetrical ( Figs. 34, 36 ), 13th smaller than preceding and with apiculis ( Fig. 37 ); ascoids S shaped; first 12 flagellomeres with fovea containing small bristle. Palpus formula = 1.0:2.3:2.3:3.1 ( Fig. 35 ). Wings with short Sc; radial fork distal to medial fork ( Fig. 38 ). Male terminalia ( Figs. 39, 40 ): sternite 9 U­shaped; posthypandrial plate small. Gonostyle same length as gonocoxite. Sternite 10 triangular. Tergite 10 triangular. Cercus with 7 apical tenacula with rounded tips. Parameres triangular. Medial area of gonocoxal bridge narrow. Base of distiphallus raquet shaped; shafts of distiphallus cylindrical. Aedeagal apodeme short, ending before gonocoxal bridge.

Distribution. Brazil, Bahia (Sauípe), Amazonas (Silves).

Comments. Atrichobrunettia minuta sp. nov. is the only species of Neotropical Atrichobrunettia known to have 15 flagellomeres. All the other Neotropical species of Atrichobrunettia have 16 flagellomeres, and were classified into the subgenus Polibrunettia. Atrichobrunettia minuta sp. nov. is easily identified by its wide eye bridge.

Figures

FIGURES 34 – 38. Atrichobrnettia minuta Bravo, sp. nov. 34. Head. 35. Palpus. 36. Base of antenna, scape, pedicel and first two flagellomeres. 37. Antenna, flagellomeres 14, 15, and 16. 38. Wing.

FIGURES 39 – 44. Atrichobrnettia minuta Bravo, sp. nov. 39. Male terminalia, dorsal. 40. Male terminalia, lateral. Atrichobrunettia pennata Bravo, sp. nov. 41. Wing. 42. Base of antenna, scape and pedicel. 43. Male terminalia, dorsal. 44. Male terminalia, cercus.