and Central American Telephorinae. 97 



35, Polemius ornaticollis, n. sp. (Plate VIII, fig. 63, 

 prothorax, (^.) 



Rather short, shining, finely pubescent ; black or piceous, the 

 sides of the head in front, the mandibles, and sometimes the base 

 of the antennae and the femora in part, testaceous, the prothorax 

 rufo-testaceous, with a black median vitta of variable breadth and 

 interrupted whitish margins, the lateral prominences of (J blackish 

 in one specimen. Eyes small and antennae long in both sexes, 

 joint 2 of the latter very short. Prothorax ((^) transversely sub- 

 quadrate, bicallose on the disc posteriorly, notched at the middle 

 on each side and with a small blunt tooth in front of the emargina- 

 tion, the narrowly dilated margins gradually becoming a little 

 wider towards the rectangular hind angles ; ($) broader, more 

 widened posteriorly, the margins more expanded, plicate, and 

 simply sinuate before and behind the middle. Elytra comparatively 

 short, slightly widened posteriorly, roughly, densely sculptured and 

 obsoletely costate. 



Length (excl. head) 3-4, breadth 1J-1| mm. ((^ $.) 



Hab. Mexico, Tapachula {Hoge : $), Teapa {H. H. 

 Smith : (^) ; Guatemala, Zapote, Pacific slope {Champion : 



Described from four examples, the pair from Zapote 

 (including the male left by Gorham under his Silis minuta) 

 being taken as the types, varying in the development of 

 the black median vitta of the prothorax, this being dilated 

 towards the base and apex in the Zapote male. The dark 

 head and legs, and the very differently shaped prothorax 

 of the male, separate P. ornaticollis from P. minutus. The 

 tricoloured prothorax is common to various allied forms. 

 One of the smallest species of the group. 



The following species cannot be definitely located till 

 the males are discovered. 



36. Polemius mimetus. 



$. Telephorus {Silis 'i) mimetus, Gorh., Biol. Centr.-Am,, 

 Coleopt. iii, 2, pp. 90, 289, 



Moderately elongate, narrow, finely pubescent; opaque, black, 

 the entire anterior portion of the head, the sides of the latter behind 

 the eyes, the sides of the prothorax, and the humeri flavous ; head 

 large ; eyes small ; mandibles curved ; antennae short, rather 



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



