1AS2.] ''5< [.Tayne. 



Avhich it can be easily distinguished by the narrow short presternum and 

 broad confluent piceous spots on the elj'-tra of the latter. 

 Occurs in Nevada. 



A. vSricolor, n. sp. Elongate, convex, black, covered with whitish- 

 yellow, semi-erect pubescence. Head and thorax coarsely punctate, 

 pubescent. Antennae rufous. Scutellum pubescent. Elytra black,- 

 clothed with black, semi-erect pubescence, marked by thi-ee irregular 

 transverse confluent rufous spots, with three sinous transverse bands of 

 white semi-erect pubescence. Body beneath black, punctate, covered 

 with short, cinereous hairs. Prosternum very short and narrow. Legs 

 rufo-testaceous. Length .16 inch ; 4 mm. (Figs. 20, 21, 27, 28.) 



Male. Antennal club not quite twice as long as all the preceding por- 

 tion, with joints 9-11 very large ; last joint only slightly longer. 



Female. Antennal club small, equal to all the preceding joints united, 

 last joint almost equal to the two others together. 



The distinguishing characters of this species are the narrovt^ prosternum; 

 structure of male antennal club ; the elytra, black and piceous, bearing 

 three distinct white fasciae. 



Occurs in the Pacific States. 



DBARTHRUS Lee. 



Head as wide as anterior border of thorax. Eyes round, large, very 

 prominent, entire. Antennse 9-jointed, terminated by a 3-jointed club 

 (fig. 33). Thorax not twice as wide as long, slightly bisinuate at base. 

 Elytra elongate, sides nearly parallel. Prosternum one-third as long as 

 »wide, tip sub-acute, not produced beyond anterior coxse. No true anten- 

 nal fossae. Mesosternunl narrowly divided. Mesocoxae not widely sepa- 

 rated (fig. 33). Metasternum short, side pieces wide. Posterior coxae not 

 reaching the sides of body. Coxal plates short and wide, covering more 

 than basal half of femora. Legs slender, first four joints of tarsi snbequal, 

 last joint much longer, hardly equal to all the others taken together. 



This genus, founded upon one species, has been merged into AUagemis, 

 from which, however, it is undoubtedly distinct. The 9-jointed antennae, 

 the peculiar prosternum, the narrowly divided mesosternum, the short 

 and wide posterior coxal plates like those of Trogoderma and allied genera, 

 and finally, the entire facies of the insect, are characters too important to 

 be overlooked or underestimated. 



D. longulus Leo. Elongate, compressed, black, clothed with sparse 

 yellow semi-erect pubescence. Head black, coarsely punctate, sparsely 

 pubescent. Thorax coarsely punctate, sparsely pubescent. Elytra black 

 or piceous, coarsely punctate, sparsely pubescent. Body beneath rufous, 

 moderately coarsely punctate, clothed with sparse, cinereous pubescence. 

 Abdominal segments rufous, margined with rufo-testaceous, punctate, 

 pubescent. Legs rufous. (Fig. 31.) 



Length .1 inch ; 2.5 mm. 



