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160 



EHTNCHOPHOEA. 





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8. Sphenophorus reticulaticollis. (Tab. VIII. fig. 4, $ 



Hob. Noeth 



Boh. in Schonh. Gen. Cure. viii. 2, p. 257 l (nee Chittend.). 

 end. Proc. Ent. Soc. Wash. vi. pp. 132, 134 (1904) 2 . 



California \ Georgia, Florida, &c. 2 , Texas. — Mexico (Salle 



Mus. Brit.), Guadalajara (Edge), Toluca (WicJcham) 



Seven N.-Ame 



of the 8. 



genus are ] 

 examination 



gnized by Prof. Chittenden (six of 



8. reticulaticollis-gioup of this 

 rhich he has kindly sent for 





seems to me to be very doubtful if they 



all 



tained 



as distinct. The muddy-looking incrustation frequently disguises the true coating of 

 the surface and hides a great deal of the sculpture, and it will probably be found that 

 too much reliance has been placed upon this character for distinguishing the insects 



in question 



* 



I follow h 



ho 



in retaining 8. reticulaticollis, Boh 



Chittend.) (the typef of which I have seen), as distinct from S. venatus and 8. placidus 



Say, for the present, and his 8 

 present species is recognizable 



oating; the 



vestitus seems to me to be inseparable from 

 by the thin, rather dense, brownish-grey or o 



The 



coarsely punctured prothorax, with the Y-shaped median ridge, and 



ved 



on each 



moderately prominent ; the larg 



scattered punctures along the elytral striae ; the small tuft of hairs on each side of the 

 pygidium at the tip in both sexes ; and the deeply excavate first ventral segment in 



the male. Th 



or less transversely wrinkled, or have the alternate 



interstices a little raised, and there 



should 



anoth 



acutely dilated at the 



the subapical 



sually a bare, shining, oblong spot on the 



callosity. The rostrum is compressed, and 



(as seen in profile), strongly so in the female. 



The anterior and intermediate femora and coxae have each a 



sm 



tuft of hai 



The specimen from Guadalajara agrees very nearly with one of the two examples (that 

 from Louisiana) of S. vestitus sent by Prof. Chittenden, the five others from Mexico 



vniciensis, Chittend.. 



more 



before me having (as in the type) 



from Arizona, is also closelv related to these 



8. ph 



































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9. Sphenophorus hoegbergi. 



Sphenophorus hoegbergii, Boh. in Schonh. Gen. Cure. viii. 2, p. 254 * ; Chevr. Ann. Soc. Ent. Fr 



1885, p. 109 \ 



* 



Eab. Noeth Ameeica, Texas 



c. Ent. Soc. Wash. vi. pp. 132, 136 (1904) a . 



Mexico 2 , Vera Cruz l , Cordova (Edge) 



This 



probably an extreme form of the variable 8. reticulaticollis with the 

 thicker and denser, and extending to the scutellum ; it mainly differs from 



the latter in the shallowly depressed first ventral 



gment of the male. The typ 



* The pruinosity of the scutellum often disappears in Rhoclobcenus pustulosus and its allies, 

 t It bears two locality-labels — " Mexico " and " Calif " 

































v." 



















