Styringomyia mystica Alexander, 1945

Ribeiro, Guilherme Cunha, 2003, Systematics of the Neotropical species of Styringomyia Loew (Diptera: Tipulomorpha: Limoniidae), Zootaxa 253, pp. 1-35 : 13-15

Styringomyia mystica Alexander, 1945

Styringomyia mystica Alexander, 1945b: 241 , Figure 7 (male terminalia); 261 (description).

MATERIAL EXAMINED. Holotype. Male, Peru, Junin, Satipo (10º19S, 74º23W), 800­900 m, February 5, 1940. P. Paprzychi ( USNM). Part of the specimen pinned with allotype; other parts and terminalia mounted on slide. Allotype. Female, same data of holotype ( USNM). Paratype. 1 Male, Peru, Junin, Satipo, 800­900 m, February 5, 1940. P. Paprzychi ( USNM). Additional material. 3 males and 5 females, PERU: Madre de Dios, Parque Manu, Pakitza, 11º56S, 71º18W, 250m, stream @ Tr 1­13, IX­20­23­1989; MT, N. Adams ( ANSP); 1 mating pair and 3 females, PERU: Madre de Dios, Parque Manu, Pakitza, 11º56S, 71º18W, 250m, stream @ Tr. 2­12, IX­16­1989, LT, Gelhaus & Epstein # 440 ( ANSP); 1 female, PERU: Madre de Dios, Parque Manu, Pakitza, 11º56S, 71º18W, 250m, Qda. Claro @ Tr 1­13, IX­8­1989, at dusk, J. Gelhaus # 435 ( ANSP).

DESCRIPTION. Dimensions. See Table I. Morphology. Ninth sternite: trilobulate; medial lobe smaller than lateral lobes, narrowing gradually toward tip. Tenth tergite ( Fig. 18 ): posterior margin rounded. Gonocoxite ( Figs. 26­27 ): distal half conical, abruptly narrowed, bearing two long and stout hairs at apex, and a stout, shorter and curved hair at an apical protuberance of ventral margin; other hairs slender, variable in length, the longest along the lateral margin. Gonostylus ( Figs 10 , 26­27 ): with four extensions; extension I ( Fig. 10 , I) very enlarged and sclerotized, bearing a long and a stout spine­like hair; extension II ( Fig. 10 , II) weakly sclerotized, shorter than the others, bearing long and stout spine­like hair at apex; extension III ( Fig. 10 , III) longer than the others, strongly sclerotized; extension IV ( Fig. 10 , IV) more slender than the others, strongly sclerotized. Aedeagal sheath ( Figs. 26­27 ): a pair of lateral lobes present; dorsal crest three­pointed; medial point 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.

Figures

FIGURE 7. Styringomyia paulista, holotype, wing. Specimen on pin.

FIGURE 26. Styringomyia mystica, holotype. Aspect of part of terminalia. The arrow indicates the short and curved hair at the small protuberance near apex of ventral margin of gonocoxite. Specimen on slide. Abbreviations: aed, aedeagus; aed sh, aedeagal sheath; goncx, gonocoxite; gonst, gonostylus; vb, ventral branches of aedeagal sheath.

FIGURE 27. Styringomyia mystica, male specimen from Peru (Madre de Dios). Three­dimensional structure of terminalia, lateral view. The arrow indicates the short and curved hair at the small protuberance near apex of ventral margin of gonocoxite. Abbreviations: aed sh, aedeagal sheath; goncx, gonocoxite; gonst, gonostylus; S 9, ninth sternite; T 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.