178 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 



[Bull. 



NOMENCLATURE OF WING PARTS IN THE DRAWING OF 

 AMBLYTELES CENTRATOR. 



OLD SYSTEM 



Veins 



Costa + subcostal 



(In the Ichneumonoidea considered 



in this work these veins are usually 



seemingly but not actually coales- 



cent.) 



First transverse cubital . 



Second 



Cubital .... 



First recurrent 



Second " 



Basal .... 



Subdiscoidal ... 



Abbreviated cubital, or stump 



Externomedial 



J 1st abscissa . 



I 2d and 3d abscissa 



Transverse median of fore wings, or 



nervulus .... 



,, . , .. (1st abscissa 



Margmal or radius J^. ,0, , • 



1 2d and 3d abscissa 



Transverse median of hind wings, 



or nervellus .... 



Discoidal 



COMSTOCK-NEEDHAM SYSTEM 



Veins 

 Costa (C) +SC + R+M 



r-m and Rg 

 R4 



Ml + 2 and R* + 5 + Mi 



M3 + 4 



Transverse part of M2 or first 



abscissa of Ma 



M and m-cu 



m and M2 



M 



Cu 



M* 



M. 



M4 + Cui 

 radial cross-vein 

 R3 



Ma 



Cells 



Areolet 

 Cubitodiscoidal 



Cells 



R4 + 5 



1st Ri + R + M4 



Key to Families* 



Mesothorax with its sternum and pleurae, or at least the 

 latter, not divided into an anterior and posterior portion 

 by the presence of a carina or suture; in short, without 

 a prepectus •. 2 



Mesothorax with its sternum and its pleurae, or at least the 

 latter, more or less divided into an anterior and posterior 

 portion by the presence of a carina or suture; in other 

 words, with a prepectus as indicated by Snodgrass 6 



Second and third dorsal segments fused as is evidenced by 

 the apparent second segment having two pairs of spiracles 3 



'This table includes all the known families of Iclincumonoidca. 



