AGKILTJS. 71 



the fourth, which is the largest, touches the margin, passes over the subcosta, but does 

 not reach the suture. The prosternum and middle of the metasternum are closely and 

 rugosely punctured. The abdomen is moderately strongly punctured, the punctures 

 less crowded in the middle than at the sides ; the segments have a narrow smooth 

 border ; the lateral carina of the basal segment alters its direction posteriorly (fig. 8 b). 



26. Agrilus sparsus. (Tab. V. figg. 10, 10 a-c.) 



Griseo-niger, vix aenescens, pube brevissima pallide grisea aspersus ; thorace in longitudinem canaliculato- 

 impresso, prope angulos posticos carina nitida cyanea instructo ; elytris ad apicem bene angustatis, apice 

 ipso purpureo-cupreo. 



Long. 4| lin. 



Eab. Mexico, Oaxaca (Edge). 



The head, when viewed from above, is not much impressed between the eyes ; the 

 vertex has some closely-placed, longitudinal, punctured, impressed lines ; the face is 

 finely pubescent, rather flat, with an impressed line down the middle. The thorax is 

 very parallel; the longitudinal discoidal impression is rather deep, scarcely narrower 

 in front than behind ; all the discoidal area is strongly punctured and transversely 

 rugulose (fig. 10); the sides are finely pubescent; the posterior ridge is well defined, 

 linear, straight, shining, slightly sloping inwards anteriorly, nearly half the length of 

 the thorax (fig. 10 a). The elytra are moderately closely asperate, rugulose on the 

 disc, where the colour is darker ; the subcosta is sculptured like the rest of the 

 surface, distinctly raised at the middle, scarcely raised near the base, and obsolete 

 towards the apex; the apices are slightly divergent (fig. 10 b); the very short pale 

 pubescence, which is scattered over the surface, is placed so as to give the appearance 

 of three pairs of spots on the sutural area — one pair before the middle, the second at 

 the middle, the third behind the middle. The prosternum is closely rugose. The 

 abdomen is marked by numerous confluent curved striae ; the last segment has some 

 very small round tubercles at the extreme apex ; the lateral carina of the basal 

 segment is slightly flexuous (fig. 10 c). 



27. Agrilus aciculatus. (Tab. V. figg. 11, 11 a.) 



Brunneo-cupreus, parum nitidus, subtus cupreus; thorace transversim strigoso ; elytris maculis oblongis flavo- 



griseis notatis, ad apicem paullo ampliatis acute multi-denticulatis. 

 Long. 5| lin. 



Hab. Mexico, Tapachula in Chiapas (Edge). 



This species somewhat resembles A. divergens, but is more brownish-coppery in 

 colour, the head and underside of the body coppery, and the sutural area of the elytra 

 blackish between the spots. The head at the top is rather strongly strigose ; the face 

 punctured, rather deeply longitudinally impressed in the middle, the impression filled 

 with golden pubescence. The thorax has two impressions on the disc, the posterior 

 one rather the deeper. The elytra are finely and closely punctured on the sutural 



