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 



1st abscissa . 



2d and 3d abscissa 



Transverse median of fore wings, or 



nervulus .... 



T.^ . - ,. fist abscissa 



Margmal or radius J ,, , i ^ j i 



]2d and 3d abscissa 



Transverse median of hind wings, 



or nervellus .... 



Discoidal 



COMSTOCK-NEEDHAM SYSTEM 



Veins 

 Costa (C)+ScH-R + M 



r-m and Rg 

 R* 



]Mi + 2 and Ri + 5 + Mi 



Ma + 4 



Transverse part of M2 or first 



abscissa of M2 



M and m-cu 



m and M2 



M 



Cu 



M4 



Ma 



M.-l- Cui 

 radial cross-vein 

 Rs 



Ms 



Cells 



Areolet 

 Cubitodiscoidal 



R4 + 5 



1st Ri 



Cells 



R + M4 



Key to Families* 



1. 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 



2. 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 Ichneumonoidea, 



