LIST OF DIPTERA. 65 



2. Cyclogaster, CALVA. 



Nigra ; thorax cinereo-hirtus ; abdomen utrinque strigis tribus 

 lateralibus albis ; alee fusco-flavidce, ad costam obscure fuscce. 



Clitellaria calva, Megerle ; Meig. Zweifl. iii. 121, 2. 

 Austria. 



3. Cyclogaster pacifica. 



Nigra ; thorax flavicante-hirtus ; abdomen maculis transversis 

 flaws ; pedes flavidi, femoribus tibiisque nigro cinctis ; alee 

 flavescentes. 



Clitellaria pacifica, Hoffm. Meig. Zweifl. iii. 121, 3. 

 Portugal. 



South America. 



4. Cyclogaster atrata. 



Anthraeina ; scutellum inerme ; tarsi albidi ; alee nigro-fuscce. 



Clitellaria atrata, Wied. Auss. Zweifl. ii. 49, 5, pi. 7, f. 10. 

 Stratiomys atrata, Fabr. Sgst. AntL 83, 23. 

 Cyclogaster atrata, Macq. Hist. Nat. Dipt. i. 257, 2. 



Genus 16. XENOMORPHA. 



Fcem. Caput paiTum. Antennae 7-articulatae, breves; articuli 

 lus et 2us breves, hie crassus; 3us miuor; 4us, ous, 6us, et 7us 

 minimi, brevissimi, pubescentes ; 7us apice obtusus. Ocelli dis tin cti. 

 Scutellum muticum. Abdomen valde elongatum et attenuatum. 

 Pedes elongati, graciles ; tarsi longi. 



Mediastinal vein ending at a little before half the length of the 

 wing. Subcostal ending at a little beyond the mediastinal. Radial 

 ending at a little before two-thirds of the length. Cubital not 

 forked, ending at some distance in front of the tip of the wing. 

 First, second and fourth externo-medial veins complete, third rudi- 



g3 



