114 SEEEICOENIA. 



122. Agrilus squalus. 



Niger, nitidus ; capite antice seneo, medio impresso ; thorace disco fere laevi, latera versus pnnctulato, disco 

 longitudinaliter canaliculate, angulis posticis inflatis ; elytris sat fortiter punctatis, maculis quatuor parvis 

 albis notatis, ad apicem divergentibus denticulatis. 



Long. 4^-5| lin. 



Hob. Mexico, Campeche (Salle), Tapachula in Chiapas (Edge) ; Guatemala, near 

 the city, Zapote (Champion) ; Hondukas (Salle) ; Costa Rica (SallS). 



The thorax has the discoidal impression nearly as smooth as the rest of the disc; 

 the posterior ridge is represented by an oval swelling. The elytra have the subcosta 

 not very distinct; the punctuation is rather strong, not very close, and equally distri- 

 buted over the surface ; each elytron has a small white spot near the side behind the 

 middle and another close to the suture at a short distance from the apex. 



This species was received with the name A. squalus, Chevr., attached to it, but it 

 appears to be undescribed. 



123. Agrilus stellatus. (Tab. VII. fig. l.) 



iEneo-auratus, nibidus ; capite fortiter punctata, longitudinaliter fortiter impresso ; thorace fortiter punctata, 

 medio canaliculato-impresso, angulis posticis inflatis ; elytris sat fortiter punctatis (punctis triangularibus), 

 maculis parvis sex albis notatis, apice denticulato. 



Long. 5 lin. 



Hal. Guatemala, San Geronimo (Champion); Nicaeagua, Chontales (Belt). 



The head has the punctures moderately close together but crowded ; the impression 

 is deep, narrow posteriorly, the space between the impression and the eye convex. The 

 thorax is narrowed in front as if compressed ; the punctures are not crowded together ; 

 the discoidal impression is not very deep, but well marked. The elytra are convex at 

 the base, the sutural area impressed posteriorly leaving a moderately well-marked sub- 

 costa ; the punctures are distinctly separated from each other, distinct, except at the 

 suture below the scutellum, where the surface is smoother ; each elytron has three 

 very small nearly white spots — one just before the middle, inside the subcosta ; the 

 second behind the middle, outside the subcosta ; the third halfway between the second 

 and the apex, inside the subcosta. The prosternal process is gently convex, finely 

 punctured, the punctures not very close together. The metasternum is nearly smooth 

 in the middle. The metathoracic episterna are closely and moderately finely punctured. 

 The abdomen is finely and moderately thickly punctured, densely and rather roughly 

 punctured at the. sides of the basal segment. 



The foregoing description is taken from the Mcaraguan specimen. The example 

 from San Geronimo is a little larger than the type (6 lines) ; it has the head not green, 

 but more coppery ; the punctures on the raised part of the disc finer; the elytra less 

 acute at the apex, the apex of each being rounded ; and the spots pure white. 



These differences are probably sexual. 



