28 Journal New York Entomological Society. lvoI. xi. 



CLASSIFICATION OF THE POINTED-TAILED 



WASPS, OR THE SUPERFAMILY PROC- 



TOTRYPOIDEA. — IL 



By William H. Ashmead, A.M., 

 Assistant Curator, U. S. National Museum, Washington, D. C 



Family LIV. DlAPRIID.^2. 



This family comes very close to the Belytidce, the two having been treated as a 

 single family by A. H. Haliday in 1839, but is readily separated by the absence of a 

 basal cell in the hind wings and by the two-jointed labial palpi. 



The genus Loboscelidia Westwood, described from Sulu Island, was placed in 

 this group, but I think incorrectly ; it is apparently a Cynipoid and not a Procto- 

 trypoid. 



In habits the Diapriids agree with the Belytids, being parasites upon Dipterous 

 larvae. 



The family may be divided into two subfamilies, as follows : 



Table of Subfamilies. 

 Submarginal vein reaching the costa at about half the length of the wing or a little 

 before ; if it does not reach the costa it attains nearly half the length of the wing 

 and ends in a stigma ; costal cell most frequently closed. 



Subfamily I. SPILOMICRIN/E. 



Submarginal vein shorter, never reaching the costa beyond one third the length of the 



wing; costal cell most frequently open Subfamily II. DIAPRIIN.(E. 



Subfamily I. SPILOMICRIN/E. 

 The species falling in this group are as a rule considerably larger than those in 

 the DiapriincE , and are easily recognized by the much longer submarginal vein, which 

 reaches the costa at about half the length of the wing, and the usually closed costal 

 cell. In two genera, however, Aneurhynchiis and Labolips, the submarginal vein 

 does not reach the costa but ends in a stigma. 



Table of Genera. 



Females I 



Males 13 



1. Antennae less than 14-jointed 2 



Antennae 14-jointed ; mesonotum with two furrows. 



Polypeza Forster (type unknown). 



2. Antennas 13-jointed 3 



Antenna; 12-jointed 8 



3. Mesonotum without furrows or at most only slightly indicated posteriorly 7 



Mesonotum with two distinct furrows. 



Metathorax unarmed 4 



