]3Y ROWLAND K. TUKNKH. 261 



-elongate. Prothorax slightl}^ nanowed anteriorly; median seg- 

 ment longer than the prothorax, moderately broadened to the 

 apex, where it is obliquely depressed. First alxlominal segment 

 narrowly truncate anteriorly ; the surface of the truncation 

 concave, with a median sulca. The four basal segments with 

 elongate punctures, shallow on the fourth segment. Apical 

 segments very finely punctured, the punctures not elongate. 

 Pygidiuin with a delicate, longitudinal median carina. A 

 minute tubercle at the base of the first segment beneath. 

 Abdomen cylindrical. The mandibles are not bidentate. 

 Entirely castaneous-brown. Length 7 mm. 



Hah, — Mackay, Q. 



Near E. dispar Westw., from which it diifers in the sculpture 

 of the median segment in the male, and the simple mandibles of 

 the female. 



E. TENEBROSA, 11. Sp. 



(J. Clypeus and head delicately and closely punctured; clypeus 

 without a carina. Prothorax shining, with very fine, almost 

 microscopic, punctures, the anterior margin raised. Mesothorax 

 and scutellum more strongly punctured, the scute Hum narrowly 

 rounded at the apex; median segment rather short, delicately 

 reticulate, with a smooth mark at the base. Abdominal segments 

 finely punctured, smooth at the extreme apex; a raised mark 

 close to the apical margin and strongly emarginate posteriorly in 

 the middle on segments 2-4. Entirely black, the mandibles 

 fuscous. Wings hyaline, strongly iridescent, nervures fuscous. 

 Length 6 mm, 



9- Head rectangular, longer than broad, shining, with a few 

 minute shallow punctures; a very fine sulca between the antenna?. 

 Thorax and median segment shining, with scattered punctures, 

 tlie prothorax narrower than the head; the jnedian segment 

 longer than the prothorax, very slightly widened to the apex. 

 Abdomen cylindrical, rather sparsely punctured, the punctures 

 large and elongate, a depressed, median, longitudinal line on the 

 apical half of segments 2-1. Epipygium with a delicate median 



