Tiro nno (lenera of Coleofilfrn. f)2l 



little narrower than the IkmiI, arcuntely narrowed in front, a 

 little lonp;er than broad, margined. Scutellum small, rounded 

 posteriorly. Elytra idongatf, gradually widened |)osteiiorlv 

 and then areuately acuminate. Ah'ta'^rernuin large, rafhor 

 flat; the epi.sterna wide, a tritle narrower posteriorly t'lan 

 in iront. Anterior coxa? subglobose, moderately prominent. 

 Intermediate coxa> contiguous, gently convex, parallel, longer 

 than broad. Posterior coxie triangularly enlarged inteiiorly, 

 attenuate towards the sides. Tarsi rather long, hairy beneath, 

 five-jointed, the posterior pair with the basal joint as long as 

 the three following taken together; the second and third 

 joints rather broad, crescent-shaped, with the apical angles 

 produced; the fourth joint somewhat similar, but smaller and 

 narrower. The abdomen is very gently convex, even, not 

 transversely folded. Body clothed with scales. 



This remarkable insect is closely related to Cupes^ but 

 differs in the extraordinary form of the head. The antennaj 

 are smooth and shining, and when at rest lodge in two deep 

 grooves on the underside of the head. The structure of the 

 tarsi is also different, and they are more hairy beneath. 



TetrapJialerus II ajnen\ sj). n. 



Elongatus, griseo-fuscus, opaciis ; capita elongate, pone oculos 

 quadricristato ; autennis piceis, nitidis ; thorace elongato, antice 

 arcuatim angustato, supra tuberculis nonnullis piceis oriiato, 

 margitiibus carinitbrmibus, obtuse serrulatis ; elytris carinatis. 



Long. 15 mm. 



Hah. Rio Janeiro, Cerra das Organas {E. R. Wagner). 

 The head in front of the eyes is slightly narrowed, flat- 

 tened above, truncate in front; behind the eyes it is wider, 

 longitudinally impressed between the po.*terIor crests. Above 

 each eye there is a short transverse crest, and at the back of 

 the head on each side a longer, slightly curved, oblique cre^t. 

 The antennal grooves beneath are very strong ami have on 

 the outer angle of the posterior opening a somewhat triangular 

 prominence, which is visible when looking at the insect from 

 above. The mandibles are very prominent, vertically com- 

 pressed and dilated, bisinuate at the apex. The antennaj are 

 scarcely so long as the head and tin Tax together, slender, 

 smooth ; the basal joint is not very large, the second smaller, 

 the third and fourth slightly elongate, the following joints 

 longer, the terminal one somewhat acuminate. The thorax 

 is a little narrower than the head, longer than broad, arcualely 

 narrowed in front, gently convex, clothed with grey scales 

 with a few scattered i)ale sandy scales; the sides posteriorly 

 Ann. d' Mag. X. Hist. Ser 7. Vol.\\\. 36 



