24 



ME. H. EOLTOX ON 



[vol. Ixxvii, 



dividing a little farther out than the radius ; evidently reaching 

 the inner half of the wing-margin. Cubitus curving gently 

 inwards, and giving off inward branches, only four of which are 

 shown. Anal area long, and reaching to the end of the basal 

 third of the inner margin. Integument thin, interstitial neuration 

 of close parallel cross-ner\aires, except in the basal area, where the 

 neuration becomes reticulate. 



Description. — The costal margin is well defined, flatly convex 

 over the greater part of its length, and well rounded into the point 

 of attachment. The subcosta is parallel to, and wideh^ spaced 

 from, the costal margin, and extends over two-thirds of the length 

 of the wing. It gives off eight or nine oblique and parallel 



Fig. 1. — Archimjdacris pringlei, sj)- no v. x 3. 



A. = Anal. 

 C. = Costa. 



Sc. = Subcosta. 

 Cu. = Cubitns. 



E. = Eadius. 



Es. = Eadial sector. 



M. = Median. 



branches, all reaching the margin. The first branch is represented 

 only by a small fragment of the middle of its length ; the second 

 forks twice into three twigs, while the third, fourth, and fifth 

 fork near the margin. There is also a small undeveloped ramus, 

 branching off: from the subcosta at the point where the latter 

 bends forwards towards the margin. 



The radius is incomplete, the main stem diverging slightly from 

 the subcosta, and dividing b^" a wide fork at a point between the 

 seventh and eighth branches of the subcosta. The first of the 

 radial divisions is the true radius, and the inner branch is the 

 radial sector. The radius can be traced almost up to the margin, 

 and shows a single forking. The radial sector goes out in a straight 

 line to the wing-apex. The median has a slight divergence from 



