160 SEKBICOENIA. 



what intermediate in form between L. trivialis and L. crassa. The head is natter in 

 front than in L. trivialis, and is densely rugose. The thorax is a little shorter and 

 broader, and rather more narrowed in front ; the disc is convex, and the sides are 

 impressed, broadly so posteriorly, and margined with green ; the green part is rugose, 

 and there is a little green spot on each side of the base where the basal margin is 

 reflexed. The elytra are less acuminate than in L. trivialis, being a trifle wider at 

 the middle than at the base ; the punctuation is not quite so strong, and the punctures 

 are more separated. 



15. Leiopleura SBneifrons. 



Elongatula, sat angusta, convexa, nigra, nitida ; capite antice convexo, seneo, subtiliter punctulato, medio 

 longitudinaliter impresso ; thorace convexo, lateribus postice deplanatis, basi transversim leviter impressa ; 

 elytris punctatis. 



Long. 1^ lin. 



Hab. Panama, Volcan de Chiriqui 2500 feet (Champion). 



This species closely resembles L. lateralis, but is smaller, differently coloured, and 

 with quite differently sculptured head. The head is convex, longitudinally impressed 

 in the middle, finely and delicately reticulate-striolate, with a few small punctures. 

 The thorax is finely reticulate-striolate, moderately strongly punctured, the punctures 

 not very close together ; the sides are impressed, broadly so posteriorly ; the base is 

 also impressed, the impression becoming deep near the posterior angles. The elytra 

 have the surface somewhat uneven, moderately strongly punctured at the base, more 

 delicately punctured posteriorly, the punctures moderately close together. 



The thorax is not quite black, but appears very slightly bronzy in some lights, and 

 the anterior angles are tinted with green. 



The position of the following species is somewhat doubful ; they appear, however, to 

 be best associated with Leiopleura. They have the head unusually small ; the tibiae 

 are slender and (except in L. placida) curved. The antennae when at rest are lodged 

 in grooves of the prothorax. There is a slight impression for the reception of the 

 intermediate legs ; the posterior legs are free. In only two cases are the males known, 

 and both these have a multidentate apical segment to the abdomen. 



16. Leiopleura convexa. (Tab. IX. fig. 6.) 



Elliptico-ovalis, convexa, brunneo-senea, nitida ; thorace convexo, parce punctato, angulis posticis vix impressis ; 



elytris convexis, postice arcuatim angustatis, sat fortiter punctatis. 

 Long. 1| lin. 



Hab. Panama, Volcan de Chiriqui 2500 feet (Champion). 



