344 MEMOIRS OF THE CARXEOIE MUSEUM 



Stigmal vein Ion;; ; iuitcnuce S-jointed (or 9-jointecl with a liiiR-joint), the funicle 3-joiiited, the 



joints longer than thick Chrysonotomyia Ashmead, g. nov. 



(tyi]e Eiilophus aiiripunclatus Ashm.). 



Stigmal vein short ; anteniise 9-jointed, with a ring-joint, the flagellum filiform, tapering off at 



apex, and furnished with long, sparse hairs, the funicle 3-jointed ; abdomen long, coni-c-ovatc. 



Ametallon Ashmead, g. nov. (type A. chapadse Ashm.). 



G. AntenniB 7-jointed (or 8-jointed with a ring-joint), if 9-jointed the head not especially large 7 



Antennse 8-jointed (or 9-jointed with a ring-joint) ; head large, wider than the thorax. 



Flagellum slendei-, filiform, clothed with some long, sparse hairs, the funicle and club each 3- 

 jointed ; head large, much wider than the thorax ; wings with one or two fuscous fasciae ; ab- 

 domen conic-ovate, the second segment occupying scarcely half the whole surface. 



Acrias Walker (type A. nileus Walker). 



7. Stigmal vein usually very short, the knob sessile or subsessile. 



Thorax and scutellum smooth, impunctate ; antennae 8-jointed, with a ring-joint, not tapering 

 toward apex, the joints of the funicle submoniliform. 



Pediobius Walker (type Entedon cwdicius Walk.). 

 Thorax and scutellum with a scaly puuctation ; antennae 9-jointed with a ring-joint, tapering off 

 at apex, the joints of the funicle not submoniliform. 



Nesomyia Ashmead, g. nov. (type N. alhipes Ashm.). 



8. Abdomen sessile or subsessile 9 



Abdomen distinctly petiolate. 



Antennae 9-jointed with one ring-joint Paracrias Ashmead. 



9. Wings with short marginal cilia 10 



Wings with long marginal cilia. 



Stigmal vein short. 



Non-metallic Ametallon Ashmead. 



Metallic Uroderostenus Ashmead. 



Stigmal vein long Chrysonotomyia Ashmead. 



10. Antennfc 8-jointed (or 9-jointed with a ring-joint) Acrias Walker. 



Antenme 7-jointed (or 8-jointed with a ring-joint) Pediobius Walker. 



Subfamily II. Aphelinin.e. 

 1856. Myinoidie, Familie, 3, Forster, Hym. Stud., II., pp. 18, 21 and 30. 

 1875. Aphelinina, Tribus, Thomson, Hym. Skand., IV., pp. 12, 183. 

 1886. AphelinincTe, Subfamily, Howard, Ent. Amer., I., p. 198. 

 1897. Aphelininte, Subfamily, IE., Ashmead, Proc. Ent. Soc. Washington, I\'., p. 230. 



Many authorities have treated this group as allied to the Encijiiidir, and usually 

 place it next to that family, with which it has no affinity whatever. It is clearly a 

 component of the EalophkJx, where Dalman first placed it, as is shown by the 

 structural characters of the mesothorax. 



An excellent reversion of the group has been given by Dr. L. O. Howard, in 

 Technical Series No. 1. U. S. Department of Agriculture, where most of the genera 

 have been fully descriljed and figured. 



