AUSTRO-MALAYAN DIPTERA 487 



genera in question is certainly not that of an Ortalid. If there- 

 fore they are admitted into that family, they will have to form 

 a group for themselves, hke Pyrgota, which also has a peculiar 

 ovipositor. In other respects, the characters of the Orlalidae, as 

 given by Loew, 1. c. p. 28-31 , are well applicable to Phytal- 

 mia and Diplochorda. In my specimen of D. turgida male , the 

 long, tape-like penis, rolled up in a spiral, which characterizes 

 the Orkdidae^ is exerted, and distinctly visible. 



The four species of Diplochorda^ mentioned by me, may be 

 tabulated as follows : 



I. The brown color of the apex of the wings does not reach 



and cover the crossveins. 



Prevailing color of the abdomen brown , only a yel- 

 low crossband on the flrst segment. 



Thorax black . . . . . . . . brevicornis Saund. 



Thorax with yellow stripes .... turgida Walk. 



Prevailing color of the abdomen yellow . . . ophion n. sp. 



II. The brown color of the apex of the wings covers the an- 

 terior and a portion of the posterior crossveins . . inyrmex n. sp. 



Diplochorda turgida Walk. (Dams) J. Pr. Lin. Soc. YIII, 134 ! 

 (Salwatti). 



Syn. Elapliomyia brevicornis Saund. (ex parte) Trans. Ent. Soc. Lond. 



V , N. S. pt. X, Oct. 1861 , 415 , Tab. 13 . 

 flg. 3 (Dorei, New Guinea). 

 Dacus concisus Walk. J. Pr. Lin. Soc. V, 252 ! (Dorei, N. Guin.). 



One male ; Ramoi, N. Guinea, June 1872 (L. M. D'Albertis). 



I have already said above, that Elapliomyia brevicornis 9 de- 

 scribed and figured by Saunders, 1. c. (fig. 3, not f. 2), cannot 

 be a female, because the figure does not show the ovipositor, 

 and the wings are represented with the characteristic dilatation 

 of the male. It is therefore a different species and coincides 

 with the Dacus turgidus Walk. Dacus concisus Walk, seems to 

 be the female of this species; the descriptions of both agree 

 quite well; I also had a ghmpse of the types in the British 

 Museum. 



