CHBV8I8. 49$ 



and no mucro on the postscutellum. Head and thorax metallic 

 green, basal two segments of the abdomen metallic blue with 

 greenish reflections in certain lights, 3rd abdominal segment dark 

 purple ; the space round the ocelli, three coalescent spots alono- the 

 'posterior margin of the pronotum, and the middle posteriorly of 

 the inesonotum and scutellum deep purplish black; antenna and 

 tarsi dark brown, the scape in front metallic green, no green or 

 bine on the basal joints of the flagellum ; head and thorax very 

 coarsely densely punctured, cribrate ; abdomen finely and closely 

 punctured, with more scattered larger punctures at base of the 

 1st segment, most of the large punctures on the head and thorax 

 with minute punctures within ; pilosity as in 0. orientalis. Head 

 proportionately rather small, vertex convex, not sloped to the 

 front ; clypeus broad, anteriorly slightly emarginate in the middle ; 



a 

 Fig. 160. Chrt/fis olscura, $. . Head from front. 



facial hollow broad, punctured and coriaceous within, margined 

 above by a strong carina from which two or three not well-defined 

 carinae are emitted upwards towards the anterior ocellus ; antenna- 

 thick, cylindrical and long ; the 2nd joint of the flagellum very 

 short, only about half the length of the 1st, the 3rd joint very 

 long, more than twice as long as the first two united ; occiput not 

 transverse, slightly arched posteriorly. Thorax : the pronotum 

 very convex, transversely rectangular ; the anterior angles slightly 

 prominent, the sides nearly straight ; propleura? posteriorly ex- 

 cavate ; mesonotum and scutellum convex, the latter semicircular, 

 narrowed posteriorly from near the base, the median area on the 

 former rectangular, not broadened anteriorly ; mesopleunr very 

 coarsely sculptured and excavate, bideudate beneath ; postscutellum 

 short, slightly constricted towards the apex, and together with th(- 

 median segment very coarsely sculptured ; the posterior lateral 

 angles of the latter produced, broadly triangular, concave above 

 and acute at apex ; wings dark fusco-hyaline, with purple irides- 

 cence in certain lights, nervures purplish brown, teguhe purple 

 at base, green outwardly ; legs robust. Abdomen : the 1 st seg- 

 ment concave at base, a shallow, short, medial longitudinal grum. 

 at base above ; no medial carina on the 2nd and 3rd segments, the 

 latter very slightly incrassate in front of the anteapical series of 

 foveoo, these are very large, open and deep ; apical margin with 6 

 triangular almost equidistant teeth arranged on a broad curve, the 

 outer two only very slightly shorter than the others. 



tf. Very similar in sculpture and form, but more green than 

 blue and slightly smaller. 



