— 5| y 

 v 



PTECTICUS. id 



Table of Genera. 



1. Third vein unforked Prosopochrysa, Meij., 



2?)Third vein forked 2. [p. 86. 



Second antennal joint with a thumb-like 



expansion over the 3rd on inner side . . Ptectictjs, Lw., p. 73. 

 Second antennal joint without any such 



expansion 3. [p. 84. 



3. Eyes densely pubescent in both sexes .... Ohloromyia, Dune, 

 Eyes bare or practically so 4. [p. 85. 



4. Third antennal joint with six annulations. Brachycara, Thorns., 

 Third antennal joint with four annulations. 5. 



5. Abdomen elongate ; eyes in <5 not quite 



contiguous; discal cell veinlets distinct . Sargus, F., p. 81. 

 Abdomen short, rounded ; eyes in 3 con- [P- 87. 



tiguous ; discal cell veinlets very faint. . Microchrysa, Lw., 



Genus PTECTICUS, Lw. 



Ptecticus, Loew, Verb, zool.-bot. Ges. Wien, v, p. 142 (1855) : 



Brunetti, Ptec. 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 



Fi"-. 4. — Ptecticus, antenna, inner side. 



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

 very thin ; head rounded ; eyes in S approximate only and for 

 only a short distance ; frontal triangle inflated. Thorax and 

 abdomen as in Sargus, but perhaps less pubescent ; genitalia 

 in 3 rather large and free. Wings long ; anterior cross-vein 

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

 absent or abortive (australis). 



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

 Madagascar, ]N"orth, Central, and South America. 



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

 all the Indian species. 



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

 generic. 



