462 AViDje,. 



815. Ctenoplectra apicalis, Smith, Keio Sp. Ilym. B. M. p. 57, cf ; 



I)a/l. Ton: Cat. x, p. lOo. 



(S . Head, thorax, and the bases broadly of the abdominal 

 segments above finely and closely pnnctured, the apical margins 

 of abdominal segments 1-G smooth ; clypeus slightly emarginate 

 anteriorly, vertically carinate medially, the labrum beneath arched 

 anteriorly ; median segment short, vertical, indistinctly raised but 

 not carinate down the middle ; apical abdominal segment broad, 

 trilobed, bent dovvnv\ards, and then recurved. Head, thorax, and 

 legs dark castaneous brown ; the median segment with short fuscous, 

 the legs with black pubescence, dense and long on the outside of 

 the posterior tibiae and tarsi ; abdomen brilliant metallic blue, 

 highly polished and shining, the apical margins of the basal two 

 segments broadly, and of the 3rd narrowly castaneous brown ; wings 

 subhyaline with a smoky tint. 



Hab. Burma, d" . Length 14*5 ; e.vp. 26 mm. 



816. Ctenoplectra chalybea. Smith, Jour. Li7in. Soc 1858, p. 45, 2 ; 



Ball. Torr. Cut. x, p. 195. 



$ . Head above and thorax very minute and closely punctured, 

 shining, the clypeus and the scutellum 

 more sparsely and coarsely punctured ; 

 abdomen brilliantly polisted and 

 shining ; the clypeus broad, convex, 

 transverse anteriorly ; median seg- 

 ment steeply sloped, slightly truncate 

 and flat in the middle posteriorly. 

 Black, the abdomen deep shining 

 metallic blue : the face on each side 

 and the median segment with a little 

 Pig. \A^,— Ctenoplectra white pubescence ; the pubescence on 



chalybea, $. |. ' the legs black; the ventral segments 

 with a number of thread-like black 

 bristles ; wings hyaline, nervures and tegulae black. 



Hah. Pegu hills, Burma ; Tenasserim, extending to Malacca and 

 Celebes. $ . Length 10-13 ; exp. 22-25 mm. 



*817. Ctenoplectra cornuta, Gribodo, Bidl.Soc. E7it. Ital. xxiii, 1891, 

 p. 102, O ; Dall. Torr. Cat. x, p. 195. 



" 2 of rather small size, intensely black in colour all over; head 

 and thorax moderately, abdomen remarkably shining and polished; 

 head as wide as the thorax, densely punctured, especially on the 

 clypeus, and covered with sparse grey pubescence, furnished at 

 the sides of the clypeus with two prominent horn-like projections ; 

 thorax smoky black, somewhat closely and finely punctured, the 

 lines of articulation between the parts ver}- minutely punctured, 

 the upper horizontal pai'ts of the median segment very densely 

 subrugosely, and the vertical portion sparsely punctured and 

 shining ; basal three abdominal segments above subglabrous. 



