Styringomyia simplex Alexander, 1945

Ribeiro, Guilherme Cunha, 2003, Systematics of the Neotropical species of Styringomyia Loew (Diptera: Tipulomorpha: Limoniidae), Zootaxa 253, pp. 1-35 : 20-21

Styringomyia simplex Alexander, 1945

Styringomyia simplex Alexander, 1945 b: 241 , Figure 9 (male terminalia); 263 (description).

MATERIAL EXAMINED. Holotype. Male, British Guyana, Bartica (6 º 25 N, 58 º 37 W), January 28, 1913, H. S. Parish ( USNM). Part of specimen pinned; other parts and terminalia mounted on slide. Paratypes. 1 male, Peru, Junin, Satipo, Jauja (10 º 19 S, 74 º 23 W), 800­900 m, XI­ 10­1940, Paprzychi ( USNM); 1 male and 1 female, Peru, Junin, Satipo, Jauja, 800­900 m, IV­ 5­1941, Paprzycki ( USNM). Additional material. 1 male, Peru, Huanuco, Fundo Sinchono, Cordillera Azul (8­10 ºS, 74­76 ºN), 1500 m, VIII­ 4­1947, J. M. Schunke ( USNM); 1 male, Peru, Loreto, Cerra Azul, Rio Ucayali (8­10 ºS, 74­76 ºN), IV­ 30­1947, J. M. Schunke ( USNM); 1 male, PERU: Madre de Dios, Parque Manu, Pakitza, 11 º 56 S 71 º 18 W, 250m, stream @ Tr 1­13, IX­ 20­23 ­ 1989; MT, N Adams ( ANSP); 2 males and 1 female, Brazil: Mato Grosso, Diamantino (14 º 25 S, 56 º 29 W), Facienda São João, 5. II. 1981, 450m, C. Young ( CMNH); 1 male and 1 female, Brazil: Mato Grosso, Diamantino (14 º 25 S, 56 º 29 W), Facienda São João, 6. II. 1981, 450m, C. Young ( CMNH).

DESCRIPTION. Dimensions. See Table I. Morphology. Ninth sternite ( Fig. 32): abruptly narrowed at apex. Tenth tergite ( Fig. 22): posterior margin trilobulate; medial lobe triangular, broader than long. Gonocoxite (Figs. 31­32): distal half conical, abruptly narrowed; longest and more stout hairs along the distal parts of dorsal margin to apex; other hairs slender, variable in length, the longest along the lateral margin. Gonostylus ( Figs. 14, 31­32): more or less S­shaped, bearing two strongly sclerotized apical extensions ( Fig. 14, III, IV); extension III less developed than extension IV; medial face with a long and stout hair originating near base of extension IV; other hairs of medial face slender and shorter; hairs of lateral face long and slender. Aedeagal sheath (Figs. 31­32): without lateral lobes; dorsal crest four­pointed; space between medial points narrow; apex of each point disposed nearly side by side; ventral branches long, broad at base, abruptly narrowed at tip. Female cercus ( Fig. 9): narrowing gradually toward tip; anterior portion of ventral margin interrupted by a constriction.