Styringomyia youngi, Ribeiro, Guilherme Cunha, 2003

Ribeiro, Guilherme Cunha, 2003, Systematics of the Neotropical species of Styringomyia Loew (Diptera: Tipulomorpha: Limoniidae), Zootaxa 253, pp. 1-35: 16-17

publication ID 10.5281/zenodo.156947

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scientific name

Styringomyia youngi

sp. n.

Styringomyia youngi   sp. n.

MATERIAL EXAMINED. Holotype. Male, Ecuador: Zamora­Chinchipe, 84 km NW Zamora, mouth Rio Sabanilla (ca. 4 º05S 79 º01W), 1420m, 1 November 1987, C. Young, R. Davidson, J. Rawlins ( CMNH). Pinned specimen, with dissected terminalia inside microvial with glycerin pinned with the specimen. Paratypes. 4 males and 3 females, same data as holotype ( CMNH).

ETYMOLOGY. This species is named after Dr. Chen Young (Carnegie Museum of Natural History, Pittsburgh, USA), one of the collectors of the type specimens, and the person who made the Styringomyia   specimens of CMNH collection available for this study.

DESCRIPTION. Dimensions. See table I. Morphology. Ninth sternite ( Fig. 28 View FIGURE 28 ): narrowing gradually toward tip. Tenth tergite ( Fig. 19 View FIGURES 18 ­ 25 ): posterior margin rounded. Gonocoxite ( Fig. 28 View FIGURE 28 ): cylindrical proximally; distal part enlarged, bifurcated; dorsal branch with ca. five long and stout hairs along most distal parts of dorsal margin to apex; ventral branch with a ventral protuberance baring a usually short, curved and stout hair, and two long and stout hairs at apical margin; other hairs long and slender. Gonostylus ( Figs. 11 View FIGURES 10 ­ 13 , 28 View FIGURE 28 ): with three extensions; extension I weakly sclerotized, curved, narrowing gradually toward tip, bearing long and stout spine­like hair at its base; extension II ( Fig. 11 View FIGURES 10 ­ 13 , II) weakly sclerotized, shorter than the others, bearing long and stout spine­like hair at its apex, extension III ( Fig. 11 View FIGURES 10 ­ 13 , III) more sclerotized than the others extensions, curved, narrowing gradually toward tip. Aedeagal sheath ( Fig. 28 View FIGURE 28 ): a pair of large lateral lobes present; dorsal crest three­pointed; medial point bidentate, posterior in relation to the others; ventral branches long, narrowing gradually toward tip. Female cercus: narrowing abruptly toward tip; ventral margin gently curved, not constricted.


The Cleveland Museum of Natural History