28G Mr. 1). Sharp's Contributions to the 



3. Pcederus lim/ualis, n. sp. Angustulus, niger, clytrls 

 augiistis thoracis hitltiidine, cyaneis ; abdominis seomentis 

 rpiatuor priinis, thorace, mcsostcrno, inandibulisque riilis ; 

 palpis, pedum basi, antennarum basi et apice testaceis, his 

 medio nigris ; clytris fortiter minus crebre punctatis. 

 Long. corp. o lin. 



This species resembles exactly the P. tridens above 

 described, and appears to differ chiefly in the form of the 

 labruni, the central notch being larger and much deeper ; 

 the elytra also are more sparingly punctured, the punctures 

 being less deep and the interstices not so rugulose. 



In the female the structure of the 7th segment of the 

 hind body is the same as in 1*. tridens; but the narrow 

 dorsal process of the 8th segment is less elongate than in 

 P. tridens, and projects only a little beyond the ventral 

 plate. 



Eo-a ; a single female. 



4. Pcederus mutans, n. sp. Rufus, elytris viridi- 

 cyanescentibus, antennis medio, pedibus basibus cxceptis, 

 metasterno, abdominisque segmentis duobus ultimis infus- 

 catis ; elytris thoracc paulo longioribus, humeri^ distinctis, 

 crebre minus fortiter punctatis. Long. corp. 4^ lin. 



Antenna3 1^ lin. in length, yellow, with the five middle 

 joints infuscate. Palpi yellow. Labrum with a very- 

 small notch in the middle and without lateral emargina- 

 tion. Head red, rather narrow in proportion to the 

 length, finely jjunctured, the punctures wanting towards 

 the middle. " Thorax | lin. in length and g lin. in breadth, 

 distinctly narrowed behind, finely and sparingly pimc- 

 tured, with a space along the middle free from punctures. 

 Klytra of a rather faint bluish-green colour, |- lin. in 

 length, the shoulders distinct and the sides parallel, their 

 punctuation rather deep and close, but not coarse. Hind 

 body red, Avith the ajiical segments infuscate. Legs with 

 the coxie and basal i)ortion of femora yellow; the front 

 femora entirely yellow, the four posterior ones and all the 

 tibiu^ and tarsi strongly infuscate. 



The male has the usual excision on the ventral plate of 

 the 7th segment of the hind body. In the female this 

 j)late ends in the middle in a large sharply-pointed tooth, 

 and each outer angle is also produced and acuminate, a 

 broad space being lefl between the central and each lateral 

 tooth. 



