EPITRIX. 353 



separate this species, which, as regards shape, is closely allied to E. convexa. There is 

 only one specimen before me, and I cannot say whether the colour of the head is. 

 subject to variation. 



17. Epitrix subcostata. (Tab. XXI. fig. 5.) 



Fulvous, pubescent ; antennse and legs testaceous ; thorax closely and very distinctly punctured, the basilar 



groove straight ; elytra strongly punctate-striate to the apex, the interstices costate. 

 Length 1 line. 



Hab, Panama, Taboga Island (Champion). 



There are sufficient structural differences to be found in this insect to separate it from 

 its allies ; the thorax has the basilar groove very nearly straight, deep, and placed at 

 some distance from the posterior margin (in most of the other species this groove is 

 placed closer to the latter), the space between it and the margin is equally closely and* 

 distinctly punctured ; below the base of the elytra and close to the suture a distinct 

 depression is seen, without, however, making the basal portion appear raised; the 

 interstices of the elytra, especially near the sides, are distinctly costate, and covered* with 

 yellowish pubescence. A single specimen only is before me. 



18. Epitrix pulchella. 



Testaceous; thorax scarcely visibly punctured; elytra distinctly punctate-striate, the punctures visible to. the 



apex, surface closely pubescent. 

 Length \ line. 



Hab. Mexico, Teapa, Cordova (Salle) ; Panama, David, and Caldera in Chiriqui 

 (Champion). 



This is a small species of a pale flavous or testaceous colour, without doubt closely 

 allied to E. flaveola, Harold, which seems to be of the same colour and size. The 

 differences which distinguish the two insects are as follows : — In E. pulchella there 

 is a distinct transverse depression below the base of the elytra (a character absent 

 in the allied species), and the punctuation is quite distinct to the apex ; the thorax 

 is transverse, the basilar groove deep and nearly straight, and the punctuation 

 is extremely fine, even when seen with a strong lens. Yon Harold describes 

 E. flaveola as having the thorax impunctate, the pubescence very distinct, and the 

 yellowish-white hairs arranged in rows. The suture is very narrowly piceous in all the 

 specimens of E. pulchella before me. The Mexican specimens are slightly larger and 

 more convex than those from the State of Panama ; and the thorax is, in some examples, 

 distinctly, though finely, punctured; in one specimen, however, the punctuation is 

 nearly obsolete. I have thought it best, therefore, to unite these specimens, as I cannot 

 find other characters of distinction. 



biol. centr.-amee., Coleopt., Vol. VI. Pt. 1, May 1885. 2z 



