BY ARTHUR WHITE, 91 



TrOih' of the Australian Specie.'^ of Odontomyia. 



1 . Abdomen entiielj' black 2. 



Abdomen black, witii green or yellow side-margins 3. 



Abdomen black, witli three pairs of green or yellow side-spots. 5. 



2. Legs entirely black scutellata Macq. 



3. Femora black; tibiie yellow, with a black ring marginella Macq. 



Femora and tibiie yellow i. 



4. Face fulvous; scutellum with a yellow margin; cubital vein 



forked amyris Walk. 



Face black ( 6 ) or yellow, with a black keel ( ? ), scutellum with 



a yellow margin suhdentafa Macq. 



Face and scutellum entirely black, cubital vein not forked 



opertanea, sp.nov. 



5. Abdomen with three pairs of small, widely separated side-spots; 



antennas with a long, thin style carinifacies Macq. 



Abdomen with three pairs of side-spots, first and second pairs 

 large, and usually confluent; antennas with a very short, 

 thick style lateremaculata Macq. 



In using the above table, it should be borne in mind that the 

 face is only that part of the head below the antennae; the part 

 above the antenna? is the Jro7it. 



The species 0. subdentata Macq., and 0. marginella Macq., 

 are unknown to me, and, for the particulars given, I depend on 

 Macquart's descriptions. 



Odontomyia scutellata Macq. 



Thorax and abdomen black; scutellum brown, scutellar spines 

 long, brown, with tips black; legs, including the tarsi, entirely 

 black. Length, ^, 12 mm.; 5, 10 mm. 



Hab. — Tasmania. 



This is a scarce species. The male is remarkable for the fact 

 that, in life, the eyes are a brilliant blue, which gives the insect 

 a most splendid appearance. 



Odontomyia amyris Walk. 



Syn., Odontomyia ialemus Walk.; 0. stylata Macq.; 0. ruji- 

 facies Macq.; 0. carinata Macq.; 0. hnnUri King. 



Face entirely fulvous in both sexes. Front(5) fulvous below, 

 black above (in ^, owing to the joined eyes, the front is reduced 



