and Central American Telejyhorinae. 91 



plicate behind the stout, blunt, tooth-like, median prominence, the 

 hind angles acute. 



$. Eyes much smaller; prothorax shorter, more narrowed an- 

 teriorly, the tooth-like lateral prominence smaller. 



Hab. Panama, Biigaba and Caldera in Chiriqui. 



Represented in the " Biologia " collection by seven 

 specimens, two only of which are males, one of these (the 

 type) having very large eyes, the other doubtless belonging 

 to the next species. In this insect the sutural and outer 

 margins of the elytra, the scutellum, and the basal margin 

 of the prothorax are whitish, the rest of the prothorax 

 being testaceous, and the disc of each elytron wholly or 

 in part nigro-piceous ; the front of the head, the base of 

 the antennae, and the femora and tibiae are testaceous, 

 the rest of the head black. There is less difference than 

 usual in the general shape of the prothorax in the two sexes. 

 The enormous eyes of the male were not mentioned by 

 Gorham. 



26. Polemius nigroplectrum. 



Silis nigroplectrum, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 p. 300 (?). 



Hab. Panama, Volcan de Chiriqui. 



Smaller than P. amicula, the prothorax with the entire 

 disc and the lateral tubercles black, the margins whitish, 

 the antennae infuscate to the base. Described from two 

 females. An immature male from Bugaba, with the legs 

 and antennae slender and wholly testaceous, the fuscous 

 dorsal stripe of the elytra reduced to a streak on the apical 

 half, and the eyes much smaller in the male than in the 

 same sex of P. amicula, probably belongs here. This pallid 

 specimen was labelled Silis amicula, (^, by Gorham. 



27. Polemius basalis. 

 Silis basalis, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, p. 94 



Polemius ( ?) basalis, SchaefE., Journ. N. York Ent. Soc. 

 xvi, p. 62. 



Hab. Guatemala, Purula in Vera Paz [types : ^ $], 

 Quiche Mts. [$], Calderas {^]. 



In the typical form of this species, of which a good series 

 was captured at Purula, the head and prothorax, the base 



