Nervijuncta

Falaschi, Rafaela Lopes & Amorim, Dalton De Souza, 2009, Review of the Neotropical species of Nervijuncta Marshall, 1896 (Diptera, Ditomyiidae), Zootaxa 2219, pp. 18-30 : 19

Key to the Neotropical species of Nervijuncta

1. Eye-bridge complete; wing with a single light mark in the middle of the wing amidst a dark membrane ( Fig. 4 ); gonostyli with a wide basal enlargement ( Figs 5-6 ) (southern and southeastern Brazil) .................... N. laffooni Lane Eye-bridge incomplete; wing with two transverse light markings amidst a dark membrane ( Fig 9 ); gonostyli not conspicuously enlarged basally ( Fig. 10-11 ) ( Chile and southern Argentina) ................................... N. conjuncta (Freeman)

Figures

FIGURE 4. Nervijuncta laffooni (Brazil, Santa Catarina, Urubici), male terminalia, dorsolateral view. Ae, aedeagus; Ce, cercus; Gc, gonocoxite; Gs, gonostylus; S 8, sternite 8; T 8, tergite 8; T 9, tergite 9; Tg, tegmen.

FIGURE 9. Nervijuncta conjuncta, male terminalia (Argentina, Neuquén). Dorsal view. Ae, aedeagus; Ce, cercus; Gc, gonocoxite; Gs, gonostylus; S 8, sternite 8; T 8, tergite 8; T 9, tergite 9; Tg, tegmen.

FIGURES 5 – 6. Nervijuncta laffooni (Brazil, Santa Catarina, Urubici), male. 5. Detail of gonostylus. 6. Detail of aedeagus (Ae) and tegmen (Tg).

FIGURES 10 – 11. Nervijuncta conjuncta, male (Argentina, Neuquén). 10. Detail of gonostylus. 11. Detail of aedeagus (Ae) and tegmen (Tg), dorsal view.