genera and species of Languriida. 307 



strongly sinuate ; elytra plainly broadest just before 

 middle. 



Peru ; Cliancamayo. In Mr. Gorliam's collection. 



Crotchia coptengoides, n. s. 

 Praecedenti simillima sednigro-oenea, minor, capite prothoraceque 

 densius punctatis, elytris confuse evidenter punctatis, pedibns 

 ferrugineis. L. 6i mm. 



Very like the preceding in shape and structure, but 

 with the head and prothorax more distinctly punctured, 

 and the latter more evidently produced in middle of 

 base ; the sculpture of the head and thorax by itself is 

 of very little weight in species of the Laiuiuriidce, but 

 the sculpture of the elytra is usually reliable, and the 

 elytra in this species are thickly and confusedly punc- 

 tured, whereas in C. metallica the punctures, though fine, 

 are arranged in evident rows with broad and smooth 

 interstices between each pair ; the colour also is darker 

 and less aeneous, and the legs are ferruginous. 



Peru ; Chancamayo. In Mr. Gorham's collection. 



Crotchia gibhosa, n. s. 

 Praecedenti similis sed multo minor, prothorace fere glabro, 

 elytris obsoletissime et confuse punctatis, L. 4 — 4-^ mm. 



Much smaller than the preceding species, almost 

 black, with a very slight greenish reflection ; head 

 rather strongly and thickly punctured, prothorax almost 

 impunctate, elytra confusedly and very indistinctly 

 punctured. In this and the two preceding species the 

 prothorax is very markedly transverse. 



Peru ; Chancamayo. In Mr. Gorham's collection. 



Crotchia nitida, n. s. 

 Praecedentibus similis sed major, nitidior, prothorace magis 

 transverse, marginibus pauUo fortioribus, humeris latioribus ; ely- 

 tris ad basim fere glabris, postice obsoletius punctatis ; pedibus 

 seneis vel ferrugineis. L. 7 — 8 mm. 



This species belongs to the same group as the three 

 preceding species, bnt the thorax is more evidently trans- 

 verse and broader in proportion than the head ; it comes 



