PTECTICUS. 



Table of Genera. 



1. Third vein uuforked 



Third vein forked 



Second anteunal joint with a thumb-like 



expansion over the 3rd on inner side . . 



Second anteunal joint without any such 



expansion 



3. Eyes densely pubescent in both sexes .... 

 Eyes bare or practically so 



4. Third anteunal joint with six annulations. 

 Third antennal joint with four annulations. 



5. Abdomen elongate ; eyes in tf not quite 



contiguous ; discal cell veinlets distinct . 

 Abdomen short, rounded ; eyes in c? con- 

 tiguous ; discal cell veinlets very faint. . 



PROSOPOCHRYSA, Meij., 



2. [p. 86. 



PTECTICUS, Lw., p. 73. 



3. [p. 84. 

 CHLOKOMYIA, Duuc., 



4. [p. 85. 

 BRACHYCARA, Thorns., 



SARGUS, F., p. 81. 



[p. 87 



MlCROCHRYSA, Lw., 



Genus PTECTICUS, Lw. 



Ptecticus, Loew, Verh. zool.-bot. Ges. Wien, v, p. 142 (1855); 



Brunetti, Rec. Ind. Mus. i, p. 108 (1907). 

 Plecticus, Loew, loc. cit. v, p. 147 (1855). 



GENOTYPE, Sargus testaceus, F. ; by original designation. 



Mainly of the normal Sargid type, but technically non-metallic 

 large yellowish flies, with darker markings and often yellow wings. 

 The 2nd antennal joint distinctly overlapping 3rd on inner side 



Fig. 4. Ptecticus, antenna, inner side. 



by a thumb-like extension ; * 3rd joint short and broad, arista 

 very thin ; head rounded ; eyes in <J approximate only and for 

 only a short distance; frontal triangle inflated. Thorax and 

 abdomen as in Sargus, but perhaps less pubescent; genitalia 

 in c? rather large and free. Wings long; anterior cross-vein 

 exactly at tip of prafurca ; f posterior cross-vein occasionally 

 absent or abortive (australis). 



Ranye. Central and South Asia, Japan, Orient, South Africa, 

 Madagascar, North, Central, and South America. 



With rare exceptions, according to Williston. It is very pronounced in 

 he] 

 In 

 generic. 



all the Indian species. 



t In all Indian species except cyancm. This character is not necessarily 



