214 COCCINELLTD^. 



dilatation near the base. The epipleurse of the elytra have the inner margin deeply 

 divided, as in Chilocorus, to which genus Exoplectra seems otherwise allied. 



Crotch records eighteen species, all American, and it does not appear that any 

 species occurs further north than Mexico. 



1. Exoplectra tibialis. 



Exoplectra tibialis, Muls. Spec. Col. Trim, secur. p. 917' ; Crotch, Rev. Coccin. p. 284 a . 

 Hal. Mexico 1 2 , Omilteme in Guerrero 8000 feet (H. H. Smith). 



The type, which is in Crotch's collection, now before me, appears to be a female 

 example ; it is the only exponent of E. tibialis which I have seen, with the exception 

 of a single male from Omilteme, which I think should be referred to this species. The 

 legs are dark, almost black, but inclining to be fuscous in both the type and in our 

 example, and both are rather oblong, but in our specimen the thorax is broadly red at 

 the sides, as seems often to be the case in the males of this genus. The head, middle 

 of the thorax, and elytra are fuscous-black, clothed with a sparse grey pubescence. 



2. Exoplectra stevensi. 



Exoplectra stevensi, Muls. Spec. Col. Trim, secur. p. 921 x ; Crotch, Rev. Coccin. p. 285 s . 



Hab. Mexico 12 , Acapulco and Iguala in Guerrero (Edge); Guatemala, Coban in 

 Vera Paz (Conradt). 



The males have the thorax broadly red at the sides, the legs are red in both sexes, 

 the elytra have a brassy reflection, which is most conspicuous in the males ; it is very 

 liable to oxidize, giving rise to other metallic tints. 



Four examples. 



3. Exoplectra subsenescens (Tab. XI. fig. 26.) 



Nigra, elytris subaeneis, ore, prothoracis lateribus late, abdomine pedibusque rufis. Long. 4*5-5 millim. 



Bob. Mexico, Ventanas in Durango (ffoge). 



Above very like Ladoria delphince^ but to be distinguished by the elytra not being 

 margined with red (as well, of course, as by the dentate tibiae), and the elytra have a 

 distinctly brassy tint. E. subamescens is about the size of the Colombian E. consen- 

 tanea^ but has a black head, and the sides of the thorax are very much more widely 

 red. The whole upper surface is rather densely clothed with a very short grey pubes- 

 cence. The punctuation of the elytra is very close and fine, but uniform. The mouth, 

 underside of the prothorax, and abdomen are red, the breast is pitchy-black, but shading 

 off indeterminately, and the base of the abdomen is pitchy-red, there is, however, no 

 greenish or brassy tint on the underside. 



Seven specimens. 



