SEKRICOKNTA. 191 



above; there is also a white spot on the mesothoracic epimera and another on the 

 posterior coxse. The abdomen has a spot of white scales under the femora, a transverse 

 spot in an impression on the basal segment, and a smaller one at the base of the 

 second segment ; the lateral carina is strongly sinuate about the middle, with a white 

 spot in the sinuosity. The posterior femora are much thickened, the tarsi long, with 

 a very long basal joint. 



72 (a). Agrilus latifrons. 



Elongatus, postice gradatim angustatus, aeneus ; eapite lato, excavato, oculis prominentibus ; thorace quadrato, 

 transversim ruguloso, medio bi-impresso fere sulcato, lateribus vix arcuatis fere rectis, ante basin perpaullo 

 sinuatis, antice macula alba ornatis, angulis posticis prominulis ; elytris longis, confertim rugosis, ad 

 suturam impressis ; corpore subtus albo-maculato ; tarsis posterioribus longissimis. 



Long. 2f-3| lin. 



Hab. Mexico, Tepetlapa, Chilpancingo and Acapulco in Guerrero (H. H. Smith). 



Var. Thorace medio sulcato, elytris obscure cupreis. 



This species much resembles A. cephalotes (Tab. V. fig. 23), but is differently sculp- 

 tured, and has the basal joint of the posterior tarsi very long, in which respect it 

 resembles A. laticeps. The head is very wide ; viewed from above it is widely angularly 

 impressed, in front it is widely but not deeply concave, obliquely punctate-striolate. 

 The thorax is transversely and obliquely punctate-striolate and rugulose ; the disc has 

 two subconfluent shallow impressions, the anterior one being the smaller (in the 

 specimen from Acapulco these are deeper and confluent) ; the posterior ridge is only 

 distinct when viewed laterally, it is curved outwards and downwards in front; the 

 lateral oblique impression is deep, and is filled with white pubescence anteriorly. The 

 elytra are long, rather flat, closely rugose, a little narrowed before the middle, gradually 

 narrowed at the apex, but not very acuminate ; the shoulders are much raised ; the 

 subcosta is slightly marked, rectilinear, but does not reach the apex. The specimen 

 from Chilpancingo has the elytra a little darker than in the one from Tepetlapa, and in 

 the one from Acapulco they are obscure coppery. The prosternal chin-piece is short, 

 gently emarginate. The prosternum is rather rough, finely margined at the sides, nearly 

 parallel, truncate posteriorly, with a narrow process at a lower level. The sides of the 

 sterna are clothed with whitish scales. The abdomen has an oblique broad stripe on 

 the basal segment, and a triangular spot on the second and third segments ; the lateral 

 carina of the basal segment is distinctly sinuate behind the middle, with a white spot 

 in the sinuosity. The posterior tarsi are very long. 



105(a). Agrilus delicatulus. 



Elongatus, parallelus, seneus, virescens ; eapite sat magno, oblique punctato-striolato, medio leviter sulcato, 

 fronte biconvexa; tborace convexo, oblique punctato-striolato, medio sulcato; elytris longis, asperatis, 

 pube grisea brevissime sparsis, dorso depresso. 



Long. l|-2i lin. 



