SEKRICOEKEA. 189 



Agrilus nodifrons (p. 68). 



To the Mexican locality given, add:— Dos Arroyos in Guerrero 1000 feet (H. H. 

 Smith). 



28 (a). Agrilus cavifrons. (Tab. IX. fig. 18.) 



Sat latus, depressiusculus, cupreo-seneus ; capite antice excavato, inasquali, sericeo-pubescente ; thorace trans- 

 verso, antice paullo angustato, crebre fortiter punctate, disco excavato ruguloso, lateribus albo-tomentosis, 

 ad angulos posticos carina brevi distincta introrsum directa ; elytris fuscis, crebre punetatis, basi thorace 

 paullo latioribus, sub humeris sinuatis, ante apicem angustatis, ad apicem paullo dilatatis, cupreis, 

 denticulatis, singulis costa laevi nitida instructis. 



Long. 8| lin. 



Hab. Mexico, Venta de Zopilote in Guerrero (H. E. Smith). 



This very fine species is quite unlike any other in our fauna; it is perhaps most 

 nearly allied to A. caudalis, Lap. & Gory. The head has the whole of the front 

 concave. The thorax has the deep discoidal impression broad posteriorly, obliquely 

 narrowed in front, the raised margins of the impression shining and less closely 

 punctured. The elytra are rather flat, nearly horizontal; there is some whitish 

 pubescence in the basal region, congested into a white spot in the basal impression ; 

 there are some indefinite spots about the middle ; at one-third from the apex a distinct 

 band of pale sandy pubescence, slightly descending at the suture, and just before the 

 apex there is a well-marked oblique spot between the suture and the costa; each 

 elytron has a well-marked costa, which curves very gradually towards the suture till 

 near the apex, and then turns again outwards ; between the costa and the margin 

 there is a somewhat indistinct interrupted raised line. The prosternal chin-piece is 

 large, arched in front. The prosternum is strongly and moderately closely punctured, 

 with the margins smooth, but not raised. The metathoracic episterna are closely and 

 finely punctured in transverse lines. The abdomen is finely and not very closely punc- 

 tured in the middle (smooth in parts), closely rugulose at the sides of the basal 

 segment ; the lateral carina of the basal segment is interrupted by a notch behind the 

 middle ; the terminal segment has a well-marked keel in the middle at the apex, with 

 an impression on each side of it; the extreme apex beyond the impressed line is 

 asperate. 



68 (a). AgrilllS Oblitus. (Tab. IX. figg. 19, 19 a.) 



Cupreo-fuscus, vix nitidus ; capite antice impresso croceo-pubescente, longitudinaliter canaliculate ; thorace 

 basi paullo angustato, transversim ruguloso, punctato, disco vix bi-impresso, lateribus croceo-pubescen- 

 tibus ; elytris conf ertim asperulatis, ad suturam leviter impressis, ad apicem paullo angustatis, singulis 

 apice dente vix acuto instructis ; pectore abdomineque croceo-marginatis ; femoribus posterioribus paullo 

 incrassatis. 



Long. 3| lin. 



Hab. Nicaragua, Chontales (Belt). 



A somewhat dull, rough species, with conspicuous yellow margins to the thorax and 



