Systematics of the Neotropical species of Styringomyia Loew (Diptera: Tipulomorpha: Limoniidae)
Ribeiro, Guilherme Cunha
Zootaxa
2003
253
1
35
87KTH
[664,824,1244,1270]
Insecta
Limoniidae
Styringomyia
Animalia
Diptera
9
10
Arthropoda
genus
1. Stout spinelike hairs present ( Figs. 1013)................................................................... 2 Stout spinelike hairs absent ( Figs. 1417).................................................................... 5 2. Gonostylus much longer than broad, bearing two long spinelike hairs; extension I greatly developed, basal in position ( Figs. 10, 11)........................................................ 3 Gonostylus almost as long as broad, bearing at least three short spinelike hairs; exten sion I apical in position ( Figs. 12, 13)........................................................................... 4 3. Four extensions present; apex of extension I broad ( Fig. 10) ....... S. mysticaAlexander Only three extensions present; apex of extension I narrowed ( Fig. 11) .. S. youngi sp. n. 4. Extension II short, spinelike hair situated at its apex ( Fig. 12) .......... S. atlantica sp. n. Extension II long, spinelike hair situated at its base ( Fig. 13) ..... S. paulistaAlexander 5. Two apical extensions present....................................................................................... 6 Only one bifid apical extension present (probably resulting from the fusion of exten sion III and IV); anterior margin of gonostylus almost straight; slender hairs in the lat eral face concentrated at a protuberance near base of apical extension ( Fig. 16)................................................................................................... S. amazonica sp. n. Three apical extensions present; extension III and IV closely jointed; gonostylus long and slender ( Fig. 17) ......................................................................... S. manauara sp. n. 6. Gonostylus more or less Sshaped; extension III relatively poorly developed; medial face with a long and relatively stout hair near base of extension IV ( Fig. 14) ............... ....................................................................................................... S. simplexAlexander Gonostylus constricted at base; distal part of posterior margin expanded; extension III well developed ( Fig. 15) ........................................................................... S. maya sp. n.