Tonnoira tripenis Chagas-Vieira

Chagas-Vieira, Cínthia, 2012, New records of Tonnoira Enderlein (Diptera, Psychodidae, Psychodinae) from the Brazilian Amazon with descriptions of two new species, Zootaxa 3318, pp. 51-56 : 53-55

Tonnoira tripenis Chagas-Vieira sp. nov.

( Figs. 14–17 )

HOLOTYPE 3. BRASIL, Amazonas, Ipixuna, Rio Gregrório com[munity] Lago Grande, 07°10’11.7’’ S 70°49’10.3’’ W, 18–20.v.2011, Malaise [trap], J.A. Rafael, J.T. Câmara, F. Silva, A. Somavilla, C. Gonçalves leg. (3 INPA).

Etymology. From Latin tripenis , meaning “three aedeagus”, in reference to aedeagus tripartite.

Diagnosis. Eyes separated by little less than 1 facet diameter; eye bridge with 4 facet rows; hypandrium a distinct band connecting gonocoxites; aedeagus trifid; no parameres; cercus with 1 apical tenaculum.

Description. Head ( Fig. 14 ): eyes separated by little less than 1 facet diameter; eye bridge with 4 facet rows; interocular suture as inverted Y shaped. Palp segment 1 without sensilla. Wing ( Fig. 15 ) light brown; Sc short; base of R2+3 not attached to R4; radial fork basal to medial fork; medial fork complete; R5 ending at wing apex. Male terminalia: hypandrium a distinct band connecting gonocoxites; gonocoxite 0.8X length of the gonostylus ( Fig. 16 ); gonostyli with pointed apex ( Fig. 16 ); aedeagus tripartite, with L-shaped lateral shaft, central part broad over basal half and tapering to apex over distal half and the last shaft with basal 2/3 wide and apical 1/3 narrow ( Fig. 16 ); paramere absent ( Fig. 16 ); gonocoxal apodeme fused ( Fig. 16 ). Epandrium subrectangular with one larger oval foramen near anterior margin; cercus 3.1X length of epandrium, slightly curved, with 1 tenaculum ( Fig. 17 ); tergite 10 rounded ( Fig. 17 ).

Female. Unknown.

Remarks. Tonnoira tripenis sp. n. appears to be closely related to T. sicilis based on eyes separated by little less than 1 facet diameter, eye bridge with 4 facet rows, hypandrium a distinct band connecting gonocoxites, aedeagus tripartite and cercus with 1 tenaculum, but T. tripenis has paramere absent, hypandrium long and wide, gonocoxite 0.8X length of the gonostylus and aedeagus tripartite, with L-shaped lateral shaft, central part broad over basal half and tapering to apex over distal half and the last shaft with basal 2/3 wide and apical 1/3 narrow. T. sicilis has aedeagus tripartite, with short basal spur, a sickle-shaped lateral shaft, and broad, paddle-shaped central part twisted in center, paramere slender, hypandrium short and narrow and gonocoxite as longer as gonostylus.

Figures

FIGURES 14 – 17. Tonnoira tripenis sp. nov., holotype 3: 14. Head; 15. Wing; 16. Male terminalia, dorsal view; 17. Male terminalia, ventral view.