504 MEMOIRS OF THE CARNEGIE MUSEUM 



Tribe II. OmphaJ'ud. 



Genus OMPHALE Haliday. 



Omphale bkasiliensis, sp. nov. 



Female. — Length 2 mm. Blue, the thorax with an aeneous tinge ; a dot on the 



front and middle knees, the extreme apex of all tibice and the tarsi, except the last 



joint, pale yellowish-white ; mandibles pale ; antennae brown black, pubescent, the 



scape yellowish. Wings hyaline, bare or nearly, the veins pale, the postmarginal 



vein hardly developed, shorter than the very short stigmal vein. The abdomen is 



conically pointed, subcompressed beneath at base, and a little longer than the head 



and thorax united. 



Brazil : Chapada, in April ; Corumba, in May. 



This species is allied to 0. nigrocyanea Ashm. described from Grenada, W. I. 



Genus CLOSTEROCERUS Westwood. 



Closteeoceeus ceecius Walker. 



Closterocerus cerclas Walker, Ann. & Mag. Nat. Hist., XL, 1843, p. 31, 9. 



Entedon cercius Walker, List. Chalc. Brit. Museum, I., 1846, p. 62. — Spinola, Gay : 



Hist, de Chile, ZooL, VL, 1851, p. 435,9.— Dalla Torre, Cat. Hym., V., 1898, 



p. 34. 



(Jhile : Conception. 



Closteeoceeus peloe Walker. 



Closterocerus jyel or Walker, Ann. & Mag. Nat. Hist., XL, 1843, p. 185, d". 



Entedon pelor Walker, List. Chalc. Brit. Museum, L, 1846, p. 62. — Spinola, Gay: 



Hist, de Chile, Zool., VL, 1851, p. 436, J*.— Dalla Torre, Cat. Hym., V., 



1898, p. 42. 



Chile : Isle of Chonos. 



Closteeoceeus xenodice Walker. 



Closterocerus xenodice Walker, Ann. & Mag. Nat. Hist, X., 1843, p. 273, 9cf. 



Entedon xenodice Walker, List. Chalc. Brit. Museum, I., 1846, p. 62. — Spinola, Gay : 



Hist, de Chile, Zool., VL, 1851, p. 436, 9 d".— Dalla Torre, Cat. Hym., V., 



1898, p. 45. 



Chile : Valdivia. 



Tribe III. Etdedonuii. 



UROENTEDON Ashmead, gen. nov. 



This genus is based upon one of the most striking yet discovered in the sub- 

 family Entedoninae. It is easily recognized by the long, compressed abdomen which 

 terminates in a long ovipositor, and has the liypopygium prominent, acutely plow- 



