March, 1903.] ASHMEAD : CLASSIFICATION OF PrOCIOTRYI'OIDEA. 33 



31. Second flagellar joint about as long as the first, the joints beyond long-oval or 



moniliform Pheenopria Aslmuad 



32. Mesonotum without furrows Loxotropa Forster 



33. Scutellum not foveated at base 34 



Scutellum foveated at base. 



Mesonotum with two furrows or at least well defined posteriorly. 

 First joint of flagellum as long as the second and third united. 



Basalys W'dsi-w. 



34. Mesonotum without furrows. 



First joint of tlagellum not half as long as the second Monelata Forster 



Family LV. CERAPHRONID^. 



Mr. A. H. Haliday, as early as 1839, was the first to correctly 

 indicate this family as distinct from other Proctotrypids. It is a 

 most interesting family, ciuite distinct in many particulars and ex- 

 hibits very little affinity with any of the other families defined here. 



The family is an extensive one, widely distributed over the entire 

 world and is well represented by both genera and species, but still 

 imperfectly knowji or studied. 



The species attack plant-lice, Ap/iii/uice, and Dipterous larvae, 

 belonging principally to the family Cecidomyiidcc. .V {t\\ , however, 

 have been recorded from Lepidoptera and Coleoptera, but I think 

 incorrectly. 



TaHLF, ok SUHFAMILIKS. 



Marginal vein stigmated ; antennre ii-jointed, the same number of joints in both 

 se.xes Subfamily I. MEGASPILIN/E. 



Marginal vein linear, never stigmated ; antennae with a less number of joints in the 

 females than in the males; males with 10- or 11 -jointed antennas, females 9- or 10- 

 jointed Subfamily II. CERAPHRONINtE. 



Subfamily I. MEGASPILIN^. 

 This subfamily is easily distinguished by the large, stigmated 

 marginal vein, which thus resembles the stigma of the more specialized 

 families in the Apoidea, Sphecoidea, etc. The wingless forms, which 

 are rare, are only separated from those in the Ceraphronime, by the 

 difference in the antenncc. 



Table of Genera. 



Females i 



Males 9 



1. Mesonotum with three impressed lines 2 



Mesonotum without impressed lines, or with only one or two lines 6 



2. Metathorax not spined at base 3 



Metathora,\ with a forked spine at base Habropelte Thomson 



(type Ceraphron sciitellaris Dalk. ). 



