486 



PROCEEDINGS OF THE ACADEMY OF 



[June, 



Brownsville, Tex. 



(Extremes.) 



9 9 ' d^d" ~^ 



Length of body 7.-8. 6.3-8.3 



Length of pronotum 1.4-1.6 1.3-1.7 



Caudal width of pro- 

 notum 2.4-2.1 2.3-2.7 



Length of tegmina 4.2-4.8 4.1-5.2 



Length of wings 10. -10.9 9.9-11.4 



Length of caudal femur 4.8-5. 4.7-5.2 



■Greatest width of caudal 



■ femur 1.7-1.8 1.7-1.9 



Length of ovipositor 2.9- 3. 



Alamogordo, 

 N. Mex. 



9 



7.1 



1.7 



2.1 

 3.4 



2.1 



2.8 



7.6 

 1.7 



2.4 

 5.1 



"5^1 



1.8 



Co., Cal. 



Length of body 8.4 



Length of pronotum. 1.8 



•Caudal width of prono- 

 tum 2.6 



Length of tegmina 4.8 



Length of wings 11.3 



Length of caudal femur . 5 . 8 

 •Greatest width of caudal 



femur 1 .9 



Length of ovipositor 2 . 9 



Extremes in Ovipositor Length. 



Columbus, Tex 2.9-3.3 



Carrizo Springs, Tex 2 . 5-2 . 8 



Yuma, Ariz • 2 . 9-3 . 1 



Comondu, L. Cal 2.6-2.9 



Trinidad 2.8 



Costa Rica. 3 



The considerable variation in the present insect does not seem to be 

 affected by distribution, the extremes of the species before us being 

 found in both series from Brownsville, Tex., and Orizaba, Mex. The 

 greatest ovipositor length is seen to about equal the minimum found 

 in N. carolinus, though rare exceptions are found in that species where 

 the length of the ovipositor is less than even the average of the 

 present race. 



Color Notes. — We here describe the coloration of the type. Head, 

 pronotum and tegmina mummy brown shading to raw umber on 



