90 REVISION OF THE STRATIOMYID.E OP AUSTRALIA, 



The antennae are either with or without a style, but never with 

 an arista. 



The Slratiomyince are represented in Australia by the im- 

 portant genus Odontomyia, which is of world-wide distribution. 



14. Odontomyia Meig. 



(ExochostomaM.aiCC[.; Opseogymiius O. -Costa,; Psellidotus ^ond.; 

 EulaHa Kert.) 



Eyes either bare or hairy, practically touching in male, widely 

 separated in female. Antennae with the two, basal joints almost 

 equally long, or, at the utmost, with the first joint twice the 

 length of second; third joint with from four to six, closely united 

 segments, of which the last two may form a terminal style. 

 Scutellum with two spines. Abdomen almost quadrate in male, 

 ovate in female. Wings with the anterior veins much crowded; 

 cubital vein either forked or simple; four, posterior veins present, 

 the first to third arising from the discal cell, the fourth from the 

 second basal cell, but two of those from the discal cell are fre- 

 quently abortive, and, as a rule, none reach the wing-margin. 



Sixteen species have, so far, been described from Australia, 

 but several of these cannot be considered as really distinct. 0. 

 Jlavipalpis Macq., I have placed in a new genus^ Ophiodesma, in 

 the subfamily CliteUarince. Of the remaining species, 0. slylata 

 Macq., and 0. ialemus Walk., are identical with 0. amyris Walk., 

 and 0. hunteri King. 0. ritfifacies Macq., and 0. carinata Macq., 

 are also apparently merely varieties of the same species. 0. annu- 

 lipes Macq., cannot be satisfactorily distinguished from 0. sw6- 

 dentata Macq., and, until further evidence is obtainable, can be 

 considered only as a variety of that species. 0. regis-georgii 

 Macq., was described from a specimen without a head, and, 

 therefore, does not admit of identification; it should be deleted. 

 The same applies to 0. picea Walk., the type, in the British 

 Museum, being in too bad condition for identification. 0. stricta 

 Erichs., cannot probably be identified from the description, and 

 the locality of the type is unknown. The only other species that 

 calls for mention is Stratiomys badhis Walk.; this is probably an 

 Odontomyia, but I have been unable to trace it. 



