Colobostema lupitae sp. nov. (Figs. 1 D, 2D, 3E, 4G, H, 5D, 6D, 7D) Type material. HOLOTYPE male, labeled: MEXICO, Oaxaca, Municipio Santa María Chimalapa, Localidad Santa Inés, cerca a localidad, 31-Jul to 1 Ago-2009, Malaise trap, Salceda Sánchez, B., Rodríguez A. A. & Ordoñez, J. A., cols. Specimen dissected and mounted on microscopic slide, deposited in CAIM. Paratype 2 males, same data as holotype. Diagnosis. CuA1 ending before level of apex of costa; tergite 7 with subbasal constriction, laterally produced and asymmetric posterior margin; paramere bearing a comb of dense, thick apical setae; tergite 9 U-shaped. FIGURE 4. Tergite 7 (A, C, E, G, I) and Sternite 7 (B, D, F, H, J), male: A, B. Colobostema emilianoi sp. nov.; C, D. Colobostema marielae sp. nov.; E, F. Colobostema valentinae sp. nov.; G, H. Colobostema lupitae sp. nov.; I, J. Colobostema marlettae sp. nov. Scale bar 0.16 mm. Description. Male. Head dark brown. Eyes with interommatidial spicules; antenna with 8 flagellomeres (Fig. 1 D) brown; first flagellomere subquadrangular, flagellomeres 2 to 7 broader than long, distal flagellomere clubshaped; flagellum length, 0.65 mm; palpus (Fig. 2 D) light brown, pyriform, apically rounded sensory pit, length, 0.06 mm; labella light brown, short and rounded. Thorax dark brown; anterior spiracular sclerite with 33–35 setae; anepisternum and anepimeron with scattered setae; four katepisternal setae. Legs brownish; femora uniformly brown, tibiae annulated, broad basal and apical pale rings on fore and mid tibiae, hind tibia with narrow basal pale ring; tarsi pale brown. Wing (Fig. 3 E) length, 1.62 mm, width, 0.80 mm; membrane densely micropilose on entire surface. Anterior veins R1, Rs and R4+5 broad and thickened, with irregularly arranged rows of short setae on dorsal surface; costal cell narrow; C 0.69 of total wing length; r-m very short; fork of M symmetrical; M1 and M2 incomplete; false vein faint; CuA1 ending before level of apex of C, curved anteriorly at apex; CuA2 markedly sigmoid. Halter brown, with six setae on stem. Abdomen sternite 7 (Fig. 4H) with shallow posteromedian emargination, length, 0.5 mm, width, 0.16 mm; tergite 7 (Fig. 4G) with subbasal constriction, laterally produced and asymmetric posterior margin, length, 0.3 mm, width, 0.20 mm. Genital capsule massive (Fig. 5 D); gonocoxite short and robust, with pointed apex, length, 0.1 mm, width, 0.07 mm; paramere (Fig. 6 D) bearing comb of dense, thick apical setae; penis elongate, sinuous subapically, length, 0.1 mm; tergite 9 U-shaped (Fig. 7 D) with rounded apex and a pair of short, strong teeth-shaped projections, length, 0.1 mm, width at base, 0.1 mm. Female. Unknown. Discussion. This species is similar to C. marlettae and C. marielae, which display a similar shape of tergite 7 but in C. lupitae the posterior margin is asymmetrical. Male genitalia are similar to other species, but differ in such details as the shape of tergite 9, shape and vestiture of gonocoxite and setation of parameres. In these species (C. lupitae, C. valentinae and C. marielae) the vestiture of gonocoxite is interrupted in basal area, in other species is continuous from base to apex (C. emilianoi, and C. marlettae). C. arizonense Cook, C. variatum Cook and C. varicorne (Coquillett) show a pattern similar to the first group, in C. rotundum Cook, the vestiture is smooth, sparsely setaceous. The pattern of setae on apex of tergite 9 (in dorsal view, Fig. 7) is very similar to C. marielae and C. marlettae, whereas C. lupitae is different. Distribution. Mexico (Oaxaca). Ecology. Specimens were collected using Malaise trap, in a tropical dry forest, at the elevation of 280 m. Etymology. This new species is named after Lupita Hilda de la Cruz Flores, for her support in many aspects of my life.

Published as part of Huerta, Heron, 2013, New species of the genus Colobostema Enderlein (Diptera: Scatopsidae) from Mexico, pp. 183-194 in Zootaxa 3619 (2) on pages 188-193, DOI: 10.11646/zootaxa.3619.2.6, http://zenodo.org/record/220855