130 MEMOIRS ON THE COLEOPTERA 



sides, which are rather thick; scutellum similar but more sunken, 

 carinate; elytra three-fifths longer than wide, widest at the middle, 

 parallel, with very broadly, evenly arcuate sides, rapidly evenly 

 ogival posteriorly, the humeri somewhat prominent and nearly 

 right through rounded; surface with three narrow, strongly and 

 abruptlyelevated costae, the sutural and lateral margins also elevated, 

 the first and second costse coalescent at the middle of the basal 

 margin and also at the summit of the convex declivity, the combined 

 ridge joining the lateral margin nearer the apex, the third costa 

 joining the lateral margin near the base, or tending thereto, its pos- 

 terior end free; depressed intervals finely, densely rugose and opaque; 

 abdomen with rather strong though sparse punctures. Length (c?) 

 15.0 mm.; width 6.8 mm. Mexico (Toluca), H. F. Wickham. 



*tolucana n. sp. 



6 Body in great part similar in form to laciniata but rather stout, black, 

 opaque, very moderately convex and with short flavate pubescence; 

 prothorax one-half wider than long, narrowed anteriorly, the sides 

 rounded, incrassate and reflexed, the apical angles acute; base 

 truncate, the hind angles " nearly right"; surface unequal, densely 

 punctate, narrowly carinate medially; elytra wider than the pro- 

 thorax, posteriorly declivous and acuminate, the margin extending 

 to the tip; suture and three costae on each, the inner extending two- 

 thirds and the others three-fourths from the base acutely elevated. 

 Length 15.0 mm. San Diego trip, (probably from some point 

 on the southern boundary of Arizona). [Euschides liratus Lee.]. 



lirata Lee. 



7 Body sparsely pubescent, sordid black; prothorax slightly shorter 

 than wide, rather flat, the sides broadly rounded and narrowly 

 reflexed, with the [posterior] angles acute, not at all densely punc- 

 tate; elytra elongate-oval, sparsely punctate, the lateral margin 

 serrulate, this as well as two discal costae on each, the internal of 

 which is entire, the outer abbreviated at each end, acutely elevated. 

 Length 12.5 mm. Lower California (Cape San Lucas). [Pele- 

 cyphorus sexcostatus Lee.] sexcostata Lee. 



Lirata and sexcostata are still apparently represented by the 

 original unique examples, the former taken, I believe, by the Mexi- 

 can Boundary Expedition, being, as figured by Horn (Rev. Ten. - 

 plate), a species much larger and stouter than laciniata and without 

 indication of the basal abbreviation of the outer discal carina so 

 prevalent throughout the genus. The single row of perforate 

 punctures along each of the intercarinal spaces in laciniata, and 

 the dense basal pronotal fringe of pubiform tomentum are re- 

 markable characters in that species, the latter still more developed 

 in the Mexican bibasalis, and, if they were at all obvious in lirata, 

 would undoubtedly have been alluded to by LeConte. There is 



