Colobostema emilianoi Huerta, 2013, sp. nov.
Creators: name: Huerta, Heron
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Scatopsidae
Colobostema
Colobostema emilianoi

description: Colobostema emilianoi sp. nov.
(Figs. 1 A, 2A, 3A, 4A, B, 5A, 6A, 7A)
Type material. HOLOTYPE male, labeled: MEXICO, Chiapas, Municipio Chenalhó, cerca a la Localidad La Esperanza, 14 al 17-Nov-2009, Malaise trap, Salceda Sánchez B. & Rodríguez, A. A., cols. Specimen dissected and mounted on microscopic slide, deposited in CAIM. Three male paratypes, same data as holotype.
Diagnosis. Costal cell wide; CuA1 ends before level of the apex of costa; tergite 7 with posterior margin medially produced; penis not reaching apical margin of tergite 9; tergite 9 triangular.
Description. Male. Head dark brown. Eyes with interommatidial spicules; antenna with 8 flagellomeres (Fig. 1 A) uniformly brown; first flagellomere subcylindrical, flagellomeres 2 to 7 wider than long, distal flagellomere club-shaped; flagellum length 0.53 (0.52–0.54 mm, n=2); palpus (Fig. 2 A) light brown, short, with rounded apical sensory pit, length 0.05 mm (n=2); labellum light brown, short and rounded. Thorax uniformly brownish; scutum covered with short setae; anterior spiracular sclerite with 28–30 setae; anepisternum and anepimeron with scattered setae, 3 katepisternal setae. Legs brownish; femora uniformly brown; tibiae annulated, broad basal and apical pale rings on all tibiae; tarsi pale brown. Wing (Fig. 3 A) length 1.61 mm (1.53–1.69 mm, n=2), width 0.76 mm (0.71–0.82 mm, n =2); membrane entirely densely micropilose. Anterior veins R1, Rs and R4+5 broadened and thickened, with irregularly arranged rows of short setae on dorsal surface; costal cell wide; C 0.7 of total wing length; r-m very short; fork of M slightly asymmetrical, with a weakly marked sub-basal angle on M1; M1, M2, CuA1 and CuA2 not reaching wing margin; false vein faint; CuA1 ends before apex of C; CuA2 weakly sigmoid. Halter pale brown, with 4 setae on stem. Abdomen: Sternite 7 (Fig. 4B) with shallow posterior emargination, length, 0.41 mm, width, 0.14 mm; anterior margin of tergite 7 (Fig. 4A) concave, posterior margin medially produced, length, 0.29 mm, width, 0.15 mm. Genital capsule massive (Fig. 5 A); gonocoxite short and robust, with pointed apex, length 0.10 mm, width 0.04 mm; paramere (Fig. 6 A) bearing comb of dense setae; penis elongate, sinuous subapically, length, 0.13 mm, not reaching apical margin of tergite 9; tergite 9 (Fig. 7 A) triangular, with pair of short and strong teeth-like apical projections, length, 0.13 mm, width at base, 0.15 mm.
Female. Unknown.
Discussion. This species is similar to C. variatum Cook and C. bijleveldi Haenni & Rapp. C. emilianoi may be distinguished from C. variatum by the wing venation, the medially produced posterior margin of tergite 7 and the setae of the paramere. The new species is similar to C. bijleveldi in the shape of tergite 7 and male genitalia, but differs in the length of tergite 9 with respect to the length of gonocoxite (in C. bijleveldi T9 is short and does not reach the apex of gonocoxite); also in C. emilianoi CuA1 ends before level of the apex of costa (in C. bijleveldi CuA1 ends beyond level of the apex of C).
Distribution. Mexico (Chiapas).
Ecology. Specimens were collected using a Malaise trap, in a tropical dry forest, at the elevation of 460 m. GPS Coordinates: 92 29´55´´N; 16° 59´47´´W.
Etymology. This species is named after my son, Emiliano Huerta Trujillo, for being such an inspiration in my life.
description: 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 page 184, DOI: 10.11646/zootaxa.3619.2.6, http://zenodo.org/record/220855