ASHMEAD : CLASSIFICATION OP THE CHALCID PLIES 311 



89. AnteniiiE 10-jointed, with a 5-jointed funicle .Metallon Walker. 



Antennae 9 jointed, the funicle 4-jointed Corcobelus Walker. 



Antennae 6-jointed, the funicle 3-jointed Coccobius Eatzeburg. 



Antennae 5-jointed, the funicle 2-jointed, the club tinusually long and cylindrical. . . .Habrolepis Forster. 



Tribe IV. Arrhenophagini. 

 In this tribe the mandibles are acutely pointed, or conical, and edentate ; tarsi 

 4 or 5-jointed, while the marginal vein, in the front wings, is wanting or puncti- 

 form, the postmarginal vein being absent. The stigmal vein is sometimes present. 



TABLE OF GENERA. 



1. Tarsi 4-jointed 2 



Tarsi 5-jointed. 



Front wings with the marginal vein punctiform, the postmarginal wanting, the stigmal vein 

 rather short and curved ; 9 with 10-jointed antennae, the funicle 5-jointed, joints 1-3 small, 

 wider than long ; ovipositor exserted Rhopoideus Howard (type E. citrinus How.). 



2. Front wings with tbe marginal and stigmal veins wanting, the subcostal vein not quite attaining the 



costal edge and ending in a stigma ; 9 with 3-jointed antennae, (^ with 9-jointed antennae. 



Arrhenophagus Aurivillius (type A. chionaspidis Auriv.). 



Subfamily III. Signiphorin^. 

 1894. Signiphoringe, Subfamily, Howard, Ins. Life, VI., p. 234. 

 1897. Signiphorinse, Subfamily III., Ashmead, Proc. Ent. Soc. Washington, IV., p. 

 248. 

 This subfamily was established by Dr. L. O. Howard, in 1894, and was based 

 upon my genus Signiphora, described in 1880, from specimens bred in Florida from 

 the purple scale, Aspidiotus citricola Packard. Many species have since been dis- 

 covered from different parts of the world, and the group, although at present rep- 

 resented by a single genus, has evidently a wide distribution. The species destroy 

 scale insects, Coccidas, and the mealy-winged jflies, Aleurodidse. 



Antennae apparently 3-jointed but in reality 6-jointed, there being 3 minute ring-joiuts easily overlooked ; 

 wings with a long marginal fringe, the marginal vein long, about the length of the subcostal vein, the 

 stigmal vein distinct but not long, the postmarginal vein absent ; middle tibiae with a large, lobed 

 apical spur, and with lateral spurs or strong bristles. 



Signiphora Ashmead (type S. flavopalliata Ashm.). 



Family LXIX. PTEROMALID^. 



1835. Pteromalid?e, Family (partim). Walker, Ent, Mag., II., p. 286. 



1840. Pteromalides, Subfamily 3 (partim), Westwood, Intro. Mod. Class. Insect, II., 



p. 166 ; Synop., p. 67. 

 1846. Spalangiidffi, Family 7 (partim), Walker, List. Chalc. Brit. Museum, I., p. 23. 

 1846. PteromalidsB, Family 8 (partim), Walker, opus cit, p. 23. 



