Aztecatopse neotropica, Huerta, Herón & Haenni, Jean-Paul, 2016

Huerta, Herón & Haenni, Jean-Paul, 2016, New species of the genus Aztecatopse Haenni & Huerta from Mexico (Diptera, Scatopsidae), Zootaxa 4178 (1), pp. 79-96: 85-87

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Aztecatopse neotropica

sp. nov.

Aztecatopse neotropica   sp. nov.

( Figs 3 View FIGURE 3 C, 4C, 6C, 7C, 9C, 10C, 11C, 14, 16)

Type material. HOLOTYPE: Male (slide mounting). Mexico, Guerrero, Ayutla de los Libres, Locality La Unión, GPS: 16° 40´ 99´´N, 99° 08´20´´W; 7.IV –16.V.2009, Malaise Trap, Wilbert, B. M. leg. ( CAIM) GoogleMaps   . Paratypes: 1 male (slide mounting), Mexico, Morelos, Yautepec , alrededor del poblado, Malaise trap, 8.VIII.2014, Márquez, M, M. A. ( CAIM)   ; 1 male (slide mounting). Jalisco, Estación de Biología Chamela, Cuenca 4a, Zona 8, 25-Feb-1993, fumigación, Pescador, A. leg. ( CAIM)   .

Diagnosis. Tergite 7 bearing a pair of posterolateral, short projections, posterior emargination concave; parameres pointed at tip, with a pair of posteroventral lobes.

Description. Male. Similar to A. amorimi   sp. nov. in most characters. Body length approximately 1.2 mm. Brownish species in general colour. Head. Ommatidia equal in size, in lateral view at level of base of scape, a row of 6 ommatidia disposed from outer to inner ocular margin; scape square, a row of setae disposed along distal margin; pedicel subcylindrical, 8 flagellomeres ( Fig. 3 View FIGURE 3 C) covered with microtrichia and sensilla; flagellomeres I – VII twice as wide as long, each bearing a whorl of setae, last flagellomere rounded, as long as 2 preceding ones, bearing 3 whorls of setae; flagellum length, 0.23 mm. Palpi ( Fig. 4 View FIGURE 4 C) brown, setose, subcylindrical, apically rounded, with two subapical sensory pits, length 0.08 mm, width 0.03 mm.

Thorax. A well-marked row of 9–10 supraalar setae; anterior spiracular sclerite setose (11–14 setae), with a well-marked antero-dorsal pointed projection, spiracle large, not longer than high ( Fig. 6 View FIGURE 6 C); pleural setae: 8–11 anepisternal, in upper anterior corner of sclerite, 6 anepimeral, 4–5 subalar, 3 katepisternal, 2–6 posterior spiracular, no meral setae.

Wing. ( Fig. 7 View FIGURE 7 C) length, 1.05–1.07 mm, width, 0.50 mm. R4+5 reaching costa beyond middle of wing, and slightly beyond level of fork of M; M fork nearly twice as long as stem, gradually widening towards wing margin; second costal section shorter than first; a false vein present between M2 and CuA1; CuA2 smoothly angled near middle, reaching wing margin obliquely. Wing length/section costal 1: 2.8; WL/C2: 6; WL/C3: 2.1; WL/C1+C2: 1.90; C extending 0.52 of wing length.

Abdomen. Tergite 7 subquadrate, pilose, bearing a pair of posterolateral, short projections ( Figs 9 View FIGURE 9 C, 10C); posterior emargination concave; length, 0.12 mm, width, 0.20 mm. Sternite 7 ( Figs 9 View FIGURE 9 C, 10C) wider than long, emarginate anteriorly, bearing a pair of posterolateral, short, rounded projections; medially with ornamentation of some V-shaped cuticular folds; length, 0.12 mm, width, 0.22 mm. Genital capsule ( Figs 11 View FIGURE 11 C, 14) short, epandrium with anterior margin V-shaped; heavier sclerotized medially, without plough-like projection, tapering to apex, with a pair of small, setose, posterolateral lobes; gonocoxites joined to epandrium, with a pair of curved at tip lateral processes; aedeagus long and thick, pilose apically; parameres elongate, subcylindrical, tapering to pointed apex, bearing narrowly associated, pointed at tip posteroventral lobes.

Female. Unknown.

Distribution. Neotropical. Mexico (Guerrero, Morelos, Jalisco) ( Fig. 16 View FIGURE 16 ).

Bionomics. The three specimens of the type series were collected in various environments with Malaise traps and fumigation in February, April-May and August.

Etymology. The name refers to distribution in Neotropical Region; the specific epithet is a noun in apposition.


Collection of Aquatic Important Microorganisms