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EHTNCHOPHOEA. 



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35. Bhodobsenus nigrolineatus. (Tab. VII. figg. 2,2 c, <? .) 



Rhodobanus nigrolineatus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 285 l . 

 Rhodobcenus suturellus, Chevr. loe. cit. 2 



c5 . Rostrum scarcely as long as the prothorax, strongly arcuate from the widened, closely punctate, basal 

 portion, the apical portion somewhat closely punctate to near the tip, the peduncle of the submentum 

 unarmed ; ventral excavation shallow and rather narrow. 



2 . Eostrum similar in length, but with the apical portion very much smoother and the peduncle of the 

 submentum armed with a small dentiform prominence in front. 





Length 7-10, breadth 2£-3| millim. 



Hab. Mexico 2 (Mus. Brit.; Flohr), Toxpam, Yolos, Tosongo (Salle), Oaxaca 1 



(coll. Chevrolat), Omilteme, Xucumanatlan (H. H. Smith), Juquila (Salle, Edge), 

 Jalapa (M. Trujillo), Yucatan (Mus. Brit.); Guatemala, Senahu, San Juan, Purula, 



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Sabo, and Balheu in Alta Vera Paz, Calderas (Champion), Coban (Conradt), Trece 



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Aguas ( U.S. Fat. Mus.). 



I have seen the types of B. nigrolineatus and B. suturellus, Chevr., and am unable to 

 separate them : the first-mentioned is based upon a reddish specimen with a nigro- 

 trivittate pro thorax, and the latter upon an example with the brownish-cinereous spots 

 very closely placed along the suture. This species is smaller and narrower than 

 B. pustulosus ; the prothorax is subcorneal and relatively narrower ; the cinereous dots 

 on the prothorax are somewhat crowded (except along the smoother median line) and 

 comparatively small, those on the elytra being larger, rounded or oblong, and rather 

 widely scattered on the disc, the interspaces sometimes cinereo-nebulose ; and the 

 peduncle of the submentum in the female has a small prominence in front only, as in 

 B. adspersus. Found in abundance in various places in Alta Vera Paz, as well as in 

 Mexico, the rufo-maculate and nebulose forms being comparatively scarce in the long 

 series before me. The non-excavate disc of the prothorax separates B. nigrolineatus 

 from B. adspersus, and the unidentate peduncle of the submentum of the female from 

 the same sex of B. varieguttatus. 





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36. Rhodobsenus guttatus. (Tab. VII. figg. 3, 3«, ? .) 



Splienophorus guttatus, Fahr. in Schonh. Gen. Cure. viii. 2, p. 247 \ 

 Rhodobcenus guttatus, Chevr. Ann. Soc. Ent. Fr. 1885, p. 283 \ 

 $ . Sphenophorus adspersus, Sturm coll. (nee Gyll.) 8 . 



$ . Rostrum sparsely punctate to near the tip, the peduncle of the submentum armed with a short tooth in 



front ; ventral excavation shallow. 



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apex beneath, the peduncle with a stout, curved, downwardly-directed, blunt tooth in front. 



Hab. Mexico 2 (coll. Sturm x 3 ). 



We have a pair of this species from the Sturm collection. It is a form of 

 B . jpustulosus with the head, the base of the rostrum, the prothorax, scutellum, under 

 surface (except along the middle), femora, and tibiae coated with a uniform flavo- 



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