and Central American Telephorinae. 113 



with the lateral margins obliquely, angularly projecting in front of 

 the very deep, narrow, sub-basal notch, the short basal lamella 

 behind the latter hollowed in the middle, thus appearing bidentate. 

 $. Eyes small; mandibles bent; antennae short, not reaching 

 the middle of the elytra, more sparsely pilose ; prothorax with the 

 lateral margins simply trisinuate, slightly constricted in front of 

 the sharp hind angles. 



Hab. Guatemala, Totonicapam and Quiche Mts. 



The types of this mountain-insect were from Totoni- 

 capam, the female being very different from the male. 

 The Quiche male (at first placed by Gorham under S. nigrita) 

 has the sides of the prothorax more broadly, and the basal 

 lobe, testaceous, and the humeri similarly coloured. The 

 rest of the body is deep black ; the prothorax is strongly 

 transverse in both sexes ; the elytra are widened posteriorly, 

 densely punctate, and distinctly costate. 



20. Silis nigrita. (Plate IX, fig. 84, prothorax, ^.) 



Silis nigrita, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, p. 93 



(Chiacam specimens only) {nee p. 293). 

 Polemius (?) nigritus, Schaeff., Journ. N. York Ent. Soc. 



xvi, p. 62. 



Moderately elongate, shining, clothed with rather long fuscous 

 pubescence; nigro-piceous or piceous, the head down the middle and 

 in front, the sides of the prothorax, the humeral callus, and the 

 coxae and the base of the femora in one specimen ((J), pale testaceous. 

 Antennae in ^ reaching to near the apex, and in $ to about the 

 middle, of the elytra. Eyes large in (J, smaller in $. Prothorax ((J) 

 rather small, transverse, bicallose on the disc behind, the margins 

 plicate, sinuate, and reflexed, and tridentate towards the base, the 

 backwardly-directed anterior projection separated from the others 

 by a very narrow, oblique, deep notch, the hind angles not promi- 

 nent; ($) broader behind, with the margins trisinuate and the 

 hind angles acute. Elytra broader than the prothorax in both 

 sexes, somewhat widened posteriorly, roughly sculptured and 

 obsoletely costate. Inner claw of anterior tarsi distinctly, and 

 outer claw of the other tarsi feebly, dilated at base in ,^. 



Length (excl. head) 5, breadth 2 mm. ((J $.) 



Hab. Guatemala, Chiacam in Alta Vera Paz, Atlantic 

 slope. 



Redescribed from the original pair from Chiacam, the 

 (^ being marked type. The single example of the same sex 



TRANS. ENT. SOC. LOND. 1915. — PART I. (mAY) I 



