PEKJBLEPTUS. 



155 



robustis, siibcylindricis, striato-punctatis, nigro-cyaneis, ad su- 

 turam tenuiter jiavo-jmbescentibus ; antennis elongatis, JWfor- 

 mibus, art. l-4jiavis, 5-8 fuscis, 9-11 testaceis ; pedibus flavis. 



Long. corp. lf-2| lin., lat. f-1^ lin. 



Oblong-ovate, robust, of a deep-blue colour, shining. Head very 

 short, transverse, when viewed laterally abruptly deflected; eyes 

 large, prominent, distant, reaching laterally as far as the line of the 

 margin of the thorax ; between the eyes and immediately above the 

 insertion of the antennae (which are approximate) are two distinct 

 tubercles ; the surface of the head is smooth, impunctate and fulvo- 

 ferrugineous, with foiu- distinct but obscure linear thread-like mark- 

 ings, extending each from the middle of the base, the two outer ones 

 to the margin of the eyes, the two inner ones to the two tubercles 

 between the eyes. Thorax transverse, rectangular ; the sides are 

 parallel and very slightly marginate : at the base is a broad transverse 

 depression (with a slight depression also at the anterior angles), which 

 gives an appearance of prominence to the anterior disc ; these de- 

 pressions are finely clothed with pubescence : the surface of the 

 thorax is smooth (under a high power very finely punctate) and 

 fulvo-ferrugineous. ticutellum triangular, flavous, distinct. Elytra 

 robust, subcylindrical, with punctures arranged in the form of striae, 

 of a bright dark-blue colour ; the line of the suture, by reason of a fine 

 margin of pubescence, is pale flavous; the shoulders are slightly 

 prominent ; the whole surface is clothed with minute and sparingly 

 distributed pubescence. Antennte more than twice the length of the 

 elytra, filiform ; the first joint dilated ; the second minute, short, and 

 ovate ; the four basal joints flavous, fifth to eighth fuscous, ninth to 

 eleventh testaceous. Legs flavous. 



Brazil, district of the River Amazon. In the collections of Messrs. 

 Baly and Bates, and the Rev. H. Clark. 



Genus 25. PERIBLEPTUS*. 



Labrttm subsinuatum aut circulare. 



Palpi maxillares elongatuli et ad apicem dilatati. art. penultimo 



maximo, ultimo brevi. 

 Pali>i labiales subcylindrici. 

 Antenna ^rf 'formes, attenuate, in J corpore fere duplo longiores, art. 



3, 4 et 5 subwqualibus. 

 Caput breve, transversum, depressum, v< rtical . haud antice productum. 



* 7repi/3\e7rros-, omnibus admiratus, eximius : irepi, circum ; 0Ae7rw, video. 



