EIIODOB^NUS. 



135 



beneath, the antennae inserted close to the eyes, the latter large. Prothorax as long as broad, subcorneal, 

 transversely excavate on the disc posteriorly, somewhat closely punctate. Scufcellum elongate-triangular, 

 narrow. Elytra elongate, much wider than the prothorax, finely punctate-striate, the punctures of the 

 striae closely placed, the interstices flat, uniseriate-punctate. 

 Length 11-12J, breadth 3f-4§ millim. 



Eab. Mexico x (Flohr), Juquila {Edge). 



xS . Var. ? Eostrum with the apical portion feebly curved, almost smooth, unarmed at the tip beneath ; 

 prothorax, elytra, and legs ferruginous, the prothorax trivittate as in the $ , the elytra without darker 

 markings on the disc, the punctures on the upper surface each surrounded by a whitish spot ; first ventral 



segment narrowly impressed in the middle in front. 

 Length 10, breadth 3£-3£ millim. 



Eab. Mexico, Omilteme in Guerrero [E. E. Smith). 



I have seen three females of this insect — two with the rostrum long and feebly curved 

 (including the type), and one with the rostrum much shorter and abruptly denexed. 

 The two examples (? immature) from Omilteme are probably males of the same species. 

 Chevrolat 1 states that the black markings on the elytra resemble a St. Andrew's cross. 

 The "type" communicated by Dr. Sjostedt differs in various particulars from the 

 above description, but there is no reason to suppose it was wrongly named. 



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27. Khodobsenus nebulosns, sp. n. (Tab. VI. figg. 28, 23 a, $ .) 



Subfusiform, opaque above, obscure ferruginous variegated with black, the black predominating on the under 

 surface, that on the prothorax condensed into a median stripe and another along tbe sides, and tbat on 

 the elytra into four patches on each of them (one, oblique, just below the shoulder, one, large, triangular, 

 near the suture a little before the middle, one, small, in a line with it on the outer margin, and one, 

 transverse, on the disc towards the apex) ; brownish-grey-pruinose, the punctures each surrounded by a 

 larger or smaller, denser, pallid spot. Eostrum ( tf ) curved, almost as long as the prothorax, moderately 

 stout, closely punctate to near the tip, unarmed beneath, the short, broad basal portion feebly sulcate, 

 ( $ ) with the apical portion much longer, more slender, and smooth, and the peduncle of the submentum 

 armed with a small tooth in front. Antennal scape long, slender, thickened at the tip. Prothorax sub- 

 conical, slightly longer than broad, sparsely punctate, the disc with a transverse, arcuate excavation 

 towards the base. Scutellum elongate-triangular. Elytra much wider than the prothorax, narrowing 

 from the base, finely punctate-striate, the punctures each indicated by a minute pallid dot, the interstices 

 each with a row of widely scattered punctures, those along the suture somewhat closely placed and with 

 a smaller spot. Pygidium conical, pilose at the tip. Ventral excavation of the J very shallow. Legs 

 rather slender ; femora sparsely ciliate beneath. 



Length 8f-10£, breadth 3-3£ millim. ( <3 $ .) 



Hab. Mexico, Toxpam in Vera Cruz (Salle). 



Two females and one male. Narrower than R. adspersus, obscure ferruginous above, 

 the elytra each with four blackish patches and the space between somewhat densely 

 pruinose, the dots along the suture closely placed, the rostrum of the female slender 

 and a little longer than the head and prothorax united. The arcuate impression on 

 the prothorax is deep. 



biol. cente.-amek., Coleopt, Vol. IV. Pt. 7, April 1910. TT 



