Styringomyia paulista Alexander, 1946

Ribeiro, Guilherme Cunha, 2003, Systematics of the Neotropical species of Styringomyia Loew (Diptera: Tipulomorpha: Limoniidae), Zootaxa 253, pp. 1-35 : 19

Styringomyia paulista Alexander, 1946

Styringomyia paulista Alexander, 1946: 7 (description); 9, Figure 8 (male terminalia).

MATERIAL EXAMINED. Holotype. Male, Brazil, São Paulo, Juquiá (24º48S, 47º36W), 300 m, February 22, 1941, Travassos ( MZUSP). Part of specimen pinned; terminalia mounted in plastic slide pinned with the specimen. Allotype. Female, same data of holotype ( USNM).

DESCRIPTION. Dimensions. See Table I. Morphology. Ninth sternite: narrowing gradually toward tip. Tenth tergite ( Fig 21 ): posterior margin slightly trilobulate. Gonocoxite ( Fig. 30 ): conical, narrowing gradually toward tip; relatively short and stout hairs along distal parts of medial margin to apex; other hairs slender, the longest along lateral margin, the shortest proximally on medial margin. Gonostylus ( Fig. 13 ): almost as long as broad, with four extensions; extension I ( Fig. 13 , I) strongly sclerotized, bearing three apical spine­like hairs; extension II ( Fig. 13 , II) longer than the others, strongly sclerotized at apex, bearing a short subapical spine­like hair; extensions III and IV ( Fig. 13 , III and IV) approximately triangular in shape, similar in length; slender hairs concentrated near base of extensions III and IV and near the center of the medial face of gonostylus. Aedeagal sheath: with two lateral lobes, the most dorsal rounded, the most ventral longer than broad, oblique in position; details of dorsal crest ventral branches not visible in the available material. Female cercus ( Fig 8 ): narrowing abruptly toward tip; ventral margin gently curved, not constricted.

Figures

FIGURE 30. Styringomyia paulista, holotype. Aspect of gonocoxite. Specimen on slide. Abbreviation: goncx, gonocoxite.

FIGURES 8 ­ 9. Female terminalia of Neotropical Styringomyia species. Lateral view. 8. Allotype of Styringomyia paulista. 9. Paratype of Styringomyia simplex. Specimens on slides. Abbreviations: cerc, cercus; hyp vlv, hypogynial valve; tg 10, tenth tergite.

FIGURES 18 ­ 25. Tenth tergite (male) of Neotropical Styringomyia species. 18. S. mystica, specimen from Peru (Madre de Dios). 19. S. youngi sp. n., holotype. 20. S. atlantica sp. n., paratype. 21. S. paulista, holotype (modified from Alexander, 1946). 22 S. simplex, specimen from Brazil (Mato Grosso, Diamantino). 23. S. maya sp. n., paratype. 24. S. amazonica sp. n., holotype. 25. S. manauara sp. n., paratype. Abbreviations: T 9, ninth tergite; T 10, tenth tergite.

FIGURES 10 ­ 13. Gonostylus of Neotropical Styringomyia species. Lateral and medial faces, respectively, on left and right sides of each figure. 10. S. mystica, holotype. 11. S. youngi sp. n., paratype. 12. S. atlantica sp. n., holotype. 13. S. paulista, holotype. The numbers refers to the homology system applied to the extensions of the gonostylus.