ASHMEAD : CLAStSIFICATIOX OF THE CHAI^CII) FLIES 511 



neck at apex and punctate. The abdomen is petiolate, the body in one specimen is 

 conic-ovate, pointed at apex, in another specimen short oval, the terminal segments 

 in the latter evidently being retracted within the very large second sognicnt which 

 occupies nearly the whole surface of the abdomen. 

 Brazil : Chapada, in August and September. 



URODEROSTENUS Aslimead, gen. nov. 



This genus is based upon a species from St. Vincent, W. I., and is easily recog- 

 nized by the strongly exserted ovipositor and by the wings having a long marginal 

 fringe, as in some Mymarids. 



AMETALLON Ashiueail, gcu. dov. 



Tills genus comes very close to Chrysonotomijia Ashmead, but is easily recognized 

 by its non-metallic color, and by the very short stigmal vein. The antennae are nine- 

 jointed, with one ring-joint, the flagellum being filiform, tapering off towards apex, 

 clothed with sparse hairs, the funicle Iteing three-jointed. The abdomen is long, 



conic-ovate. 



Ametallon chapada, sp. nov. 



Female. — Length 1.4 mm. Honey yellow, the abdomen mostly of a brownish- 

 yellow, with a transverse fuscous band a little before the middle ; eyes brown ; 

 antenna} filiform, the flagellum tapering off' to a point at apex, with long, 

 sparse hairs. Wings hyaline, fringed, the veins yellowish, the marginal vein 

 very long, fully twice the length of the submarginal, the stigmal vein short but 

 with its knob petiolate, and longer than the postmarginal. Tiie abdomen is conic- 

 ovate, a little longer than the head and thorax united and ends in a short ovipositor. 



Brazil : Chapada, in April. Two specimens. 



Subfamily II. Aphelinin^. 



Genus ASPIDIOTIPHAGUS Howard. 



ASPIDIOTIPHAGUS CITRINUS (Craw). 



Cocaipliagu!^ citrix IIS Craw, Destructive Insects, Sacramento, Cab, 1<S91. 

 Aspidioti})hagas citrimis Howard, Insect Life, Vol. VI., 1S!)I, p. 234. — Howard, 

 Lechn. Series, No. 1, V. S. Dept. Agric, p. 31, f 10. — Dalla Torre, Cat. 

 Hym., v., 1898, p. 224. 

 Brazil: Bahia, March, 1883 (Albert Koebele). 



Subfamily III. Tetrastichin.i:. 

 TKI15E 1. C('ra((j)icarini. 

 This tribe is at i)resent known only from Mexico and the West liulies, but rep- 

 resentatives will undouljtedlv be discovered in South America. 



