Phthinia furcata Freeman

Oliveira, Sarah Siqueira & Amorim, Dalton De Souza, 2010, The genus Phthinia Winnertz (Diptera, Mycetophilidae) in the Neotropical region, with the first records from Brazil, Zootaxa 2350, pp. 22-34 : 31

Phthinia furcata Freeman

P. f u rc a t a Freeman, 1951: 54, fig. 108 (3 terminalia). Type-locality: Chile, Llanquihue Prov., Ancud. Holotype 3, NHM.

Diagnosis. M1+2 longer than r-m. Gonocoxite with a digitiform projection distally to the insertion of the gonostyle, gonostyle blunt at apex.

Comments. In Freeman’s (1951, fig. 108) drawing there appears to be an articulation between the basal part of the syngonocoxite and a distal, quite large structure. In P. parafurcata , sp.n. it is very clear that the large, distal structure is an extension of the gonocoxite, with a mesal constriction. The gonostyle, hence, is the articulated distal digitiform element of the gonocoxite, with a distal extension of the gonocoxite curved inwards. This species is very close to P. p a r a f u rc a t a, sp.n. but lacks the second distal extension of the gonocoxite and having shorter distal extensions of the tergite 9 laterally. In Freeman’s (1951) original drawing of the terminalia, tergite 9 can be clearly recognized and it is indication of dorsal view seems correct.