40 TBAVELS AMONGST THE GREAT ANDES. 



COLE O PT E R A-(CONTINUED). 



By DAVID SHARP, M.B. 



Fain. DYTISCIDM. 



1. Rhantits vicinus, var. C'olymbetes vicinus, Aiibe, Sp. Gen., p. 243. 



Hah. Ecuador (locality unknown).^ Pre^dously found in Coloml)ia. 



The single female differs slightly from the Colomlnan imiividuals in the 

 sculpture of the thorax and the length of the hind claws, and when the 

 male is knoAvn may possibly prove to be a distinct species. 



Fam. SILPHin.E. 



2. Silplm Cayennensis, Cast. Hist. Nat., ii, p. 5. 



Hah. Forests above the Bridge of Chimbo (1-3000 feet). Two examples. 

 Tliis is an abundant species in Equatorial America. 



3. S. microiis, n. sp. 



Hah. Quito (9500 feet). Six examples. 



Nigra ; antennis brevibus, articulo octavo valdc transverso ; prothorace 

 dense punctato, medio lineis duabus posterius convergentibus elevatis ante 

 1)asiu desinentibus, basi utrinque linea brevi ; elytris crebre, fere fortiter, 

 punctatis, lineis tribus elevatis argutis, externa pone medium abbrcAdata 

 a callositate transversa limitata, apicibus nullo modo ablircAdatis, angulo 

 suturali anguste sul)rotundato ; abdominis segmento ultimo tostaceo : oculis 

 minoribus. Long. corp. 16 mm. 



Two females were found of this species, Avhich notwithstanding its very 

 ordinary appearance does not apjjear to be closely allied to any other. 



Fam. STAPH VLINID.E. 



4. Pliilontkus TVhymiyeri, n. sp. 



Hah. Hacienda of Guachala (9217 feet), Antisanilla to Pinantura (11,000 

 feet), Machachi (9-10,000 feet). Five examples. 



Niger, nitidus, capite thoraceque nitidissimis, sul)violaceo-tinctis, elytris 

 ]rarpureis ; antennis sat elongatis, extrorsum baud crassioribus, articulo 

 ])enultimo subquadrato ; capite quadrato ; thorace laterib^is subsinuatis, 

 ])osterius angustiore ; elytris prothorace longioril)US et latioril)us, crebre sat 



1 The catalogue number was lost by the setter. — A'. H'. 



(V 



