TOXONEUEON. 411 



TOXONEURON. 



Toxoneuron, Say, Bost. Journ. Nat. Hist. i. p. 259 (1835) ; Complete Writings, ii. p. 710; Cresson, 



Canad. Ent. v. p. 66 (1873). 

 Tenthredoides, Cresson, Proc. Ent. Soc. Phil. iv. p. 290 (1865). 



1. Toxoneuron sethiops. 



Toxoneuron cethiops, Cresson, Canad. Ent. v. p. 67 ( ? ) \ 

 Hab. Mexico, Cordova {Sumichrast 1 ). 



2. Toxoneuron orizabsB. 



Toxoneuron orizabce, Cresson, Canad. Ent. v. p. 67 ( $ ) \ 

 Hab. Mexico, Orizaba {Sumichrast 1 ). 



3. Toxoneuron mexicanum. 



Toxoneuron mexicanum, Cresson, Canad. Ent. v. p. 67 ( $ ? ) \ 

 Hab. Mexico, Cordova {Sumichrast 1 ). 



4. Toxoneuron thoracicum. 



Toxoneuron thoracicum, Cresson, Canad. Ent. v. p. 68 ( $ ? ) \ 

 Hab. Mexico, Cordova {Sumichrast 1 ). 



5. Toxoneuron seminigrum. (Tab. XVII. fig. 7.) 



Tenthredoides seminiger, Cresson, Proc. Ent. Soc. Phil. iv. p. 291 (3 ? )\ 

 Toxoneuron seminigrum, Cresson, Canad. Ent. v. p. 69 2 . 



Hab. Noeth Amekica, Colorado x 2 . — Mexico, Presidio {Forrer). 



In coloration the two specimens from Presidio do not quite agree with the description. 

 The metanotum in the female is almost without any black, in the male it has the base 

 and apex rufous ; in the female the anterior femora are lined with black on the lower 

 side in the middle ; in the male the four anterior femora are almost entirely black ; in 

 both sexes there is a large black mark on the centre of the mesothorax (but largest in 

 the female), and a smaller black mark (in the female almost confluent with the central 

 black mark) on the lateral lobe ; in neither sex is there a black mark on the base of 

 the abdomen. The tegulee are black in both specimens, and the wings are paler at 

 the base. 



^ 6. Toxoneuron ornatum. 



Toxoneuron ornatum, Cresson, Canad. Ent. v. p. 69 ( $ ) 1 . 

 Hab. Mexico, Cordova {Sumichrast 1 ). 



3gg2 



