120 Mr. D. Sharp's Coutributions to the 



impunctate. Thorax shining black, distinctly shorter tlian 

 hroad, coarsely jnuictured, with a broad, irregular, im- 

 punctate space along the middle. Elytra rather longer 

 than the thorax, blue, Avitli ashy pubescence at the base 

 and extremity, rather coarsely pimctured. Hind body 

 black, with the 6th and 7th segments bright reddish- 

 yellow; the anal styles are yelloAv at the base, but their 

 apical half is quite black; the segments are ratlier closely 

 punctured, and the 2nd and 3rd bear an ashy ]nibescence. 

 The legs, including the coxa;, are black, with the tarsi 

 pitchy, but having the apical joint reddish. 



Para; a single female taken two or three years ago. 



Ohs. — This unique specimen, though in bad condition, 

 represents, I have no doubt, a distinct species, which will 

 be easily distinguished from P. tricolor and P. fungi, by 

 the colour of the antemi:\3 and the anal styles. Compared 

 with a female of P. tricolor it is seen that the antennas are 

 much shorter, that the thorax is shorter and more sinuate 

 at the sides, and more naiTOwed behind, and that the 

 elytra are shorter and more coarsely punctured. 



5. Plociopterus dimidiatus, n. sp. Niger, nitidus, 

 abdomine antennarumcpie articulo ultimo rufo-testaceis; 

 elytris cyaneis, fasciis duabus ciuereo-pubescentibus. 

 Long. corp. 5^ Im. 



]\Ias: abdominis segmento 6" vcnti-ali apice medio obso- 

 lete emargiuato, 7" triangularitcr inciso. 



AulL'ume black, with the last joint yellow; 3rd joint 

 not (piite tAvice as long as the rather long 2nd joint, 4th 

 about as long as 2nd, 5th long, but shorter than 4th ; last 

 joint long, rounded at the extremity. Head scarcely 

 broaderthan the thorax, shining black, with a very faint 

 bluish tinge; the upper side Avith coarse, irregular" punc- 

 tures, those in the front very large, the disc free fi'om punc- 

 tures. Thoi-ax much narrower than the elytra, about as long 

 as broad, slightly narrowed behind, and a little sinuate at 

 the sides, with coarse scattered punctures, which are neither 

 so numerous noi- so coarse as in the other species here 

 described; a broad middle space free from punctures. 

 Scutelhuu dull, the lower half finely punctured, and Avitli 

 a fine grey i)u])escence. Elytra bhie, moderately closely 

 and moderately finely ])imctured, with two bands" of grey 

 l)ul)esceiiee. Hind body yellow, narrowed towards the 

 extremity ; 2nd segment almost impunctate, 3 — 6 sparingly 



