1SS2.] 31 



separated from the black-legged ones, and replaced (with one excep- 

 tion) in the genus Pegomyia of Desvoidy and Macquart. By both 

 these Dipterologists the genus was restricted to those species which 

 have the bodies, as well as the legs, always more or less yellow ; buf I 

 think it will be better to include in it all those with pale legs, whether 

 the abdomen is yellow or not, for there are several species, as A. he- 

 morrlioa, Zett., and F. hyoscyami, Desv., which have the abdomen 

 sometimes partly yellow and sometimes entirely grey. 



"With respect to the black-legged species, I shall retain the name 

 of AntJiomyia for a small group (embracing Desvoidy's genera An- 

 thomyia and EgJe) which is more highly developed than the others, 

 having the alulets rather larger with the scales unequal in size. The 

 remainder of them must be again separated into two divisions ; for 

 the first of which I shall adopt Macquart' s name Chortophila, restrict- 

 ing it (as Macquart did in theory) to those species which have the 

 abdomen more or less thickened and cylindrical. To the second and 

 largest division, which will include all those species which do not 

 belong to either of the other groups, I shall give Desvoidy's name of 

 PJiorhia* The flies in this group have the abdomen narrow and 

 elongated, or oblong, and flattened. 



The above genera may be thus tabulated : 



A. Abdomen and legs black or grey. 



B. Alulets with the scales unequal in size. 



Gen. 1. ANTHOMYIA, Meig. 

 BB. Alulets with the scales equal in size. 

 C. Abdomen in <J sub-cylindrical. 



Gen. 2. CHOETOPHILA, Macq. 

 CC. Abdomen in ^ narrow or oblong, and depressed. 

 Gen. 3. PHORBIA, R. Desv. 

 AA. Legs always, and body generally, partly pale (rufous or testaceous). 

 D. First longitudinal vein armed with spines. 



Gen. 4. ACANTHIPTERA, Bond. 

 DD. First longitudinal vein unarmed. 

 Genus 5. PEGOMYIA, Desv. 



18. ANTHOMYIA, Meig. 

 Effle, p. R. Desv. 

 Oen. cJi. — Eyes bare, contiguous or sub-contiguous in the males ; 

 arista pubescent or bare ; forehead and face slightly prominent ; epis- 

 tome often projecting ; abdomen ovoid or oblong, and depressed, often 



The species placed by Desvoidy in this genus belong to his "Anthomyw liei'bicolce." See Essai 

 sur les Myod.iires, p. .559. 



