I'ACILYCrA STKU. — Z A]JRAC HI A . 21 



here is only one Indian species in the restricteu genus Pachy- 

 er, naiiiely, P. anmdipes, sp. iiov. Macquarfc's P. rujitarsis* 



Thei 

 </astei , 



from Pondichery, cannot belong to this siibhiiiiily, as, according to 

 the pkite, it possesses three endings to the 4th longitudiniil vein, 

 apart from the upper braueli of the 5th vein. 



1. Pachygaster annulipes, sp. nov. 



2 • Head : Frons between one-third and one-fourtli of tlie head, 

 shining black ; face, which is conspicuousl}^ invaginated, with 

 greyish dust ; back of head sliiuing bkick. Antennae with 1st joint 

 black, the remair.der wholly bright yellow, with long arista. 

 Proboscis dark. Thorax and scutellum shining black, dorsum of 

 botii with very short yellowish pubescence, which does not quite 

 extend to the anterior margin of the former. Abdomen shining- 

 black, with sparse short pale yellowish pubescence ; venter black, 

 witli sparser but slightly longer pubescence. Lerjs yellowish to 

 tips of tarsi ; a rather broad subapical black or blackish browji 

 ring on all the femora. Wiwis pale yellowish gre}' ; stigma 

 darker yellow ; halteres yellowish. 



Leiujtli, 2\ nnn. 



Described from a single § from Margherita, Assam. 



Tjipe in the Indian Museum. 



Genus ZABRACHIA, Coq. 

 ZahracMa, Coquiilett, Bull. X. Y. State Mas. xlvii, p. 58-") (1901). 

 GrEXOTYPE, Zahracliia polita, Coq. (North America). 



Differing from PacJu/f/aster in the unforked 3rd vein. Some 

 degree of latitude must be allowed in my revised view of this 

 genus, in which the species are chiefl)^ united by the above 

 primary character. Eyes in d contiguous (mimdissima, Zett., a 

 European species) or narrowly separated (anmdifemur, cdbipes). 

 Scutellum not upturned (minutissima), barely upttirned and 

 thickened {(dbi2}es), or produced upwards into a short blunt cone 

 {anmd'ifemur). Third antennal joint transversely elliptical {polita., 

 the type-species from New York) or as in Pachygaster. 



Range. India, North America. 



Z. albipes has wholly pale yellow legs, while Z. anmdifemur has 

 a broad dark band on all tiie femora. 



2. Zabrachia albipes, Bmn. (PI. I, iigs. 1, 2.) 



Pach/yaster albipes, Bruuetti, Ilec. Ind. Mus. i, p. 102, $ (1907). 

 Pachi/yaster mf areata, de Meijere, Tijd. v. Eut. 1, p. 232, § (1907). 



2 . Head and front shining black, with a brilliant white streak 

 on each side of lower part of head ; antennae and proboscis orange- 



* Dipt. Exot. Supp. i, p. 57, pi. vi, fig. 3 (1846). 



