No. 22.] HYMENOPTERA OF CONNECTICUT. 337 



P. (Polytribax) pallescens Vkreck. 



A Norton specimen, possibly from Farmington, is in the col- 

 lection of the American Entornological Society, Philadelphia. 



Hemiteles Gravenhorst. 

 The species of this group are said to be exclusively hyper- or 

 secondary parasites. 



Key to Species. 



1. Clypeus with two teeth or tubercles on anterior edge 2 



Clypeus without teeth or tubercles on anterior edge 3 



2. Abdomen blackish, with apical margins of dorsal segments 



pale; palpi nearly white; legs including coxae reddish, ex- 

 cept a black band at tip of hind femora and at tip of hind 

 tibiae, and hind tarsi, which are blackish except at base of 



first joint pimplae 



Abdomen reddish, male with abdomen black at tip. Length 

 7 mm meteor! 



3. Wings with blackish bands 4 



Wings not banded, but hyaline or dusky 5 



4. Propodeum not spined; antennae 23-jointed; length 5 mm.; 



brownish or stramineous; apical abdominal segment black, 

 as are two preceding segments; exsertcd portion of ovi- 

 positor one-fifth as long as body ..areator subspecies tenellus 



Propodeum spined; head, thorax, antennae, and legs, dull 

 reddish; abdomen brown, and with faint bands of yellow; 

 sheaths of ovipositor about as long as abdomen. Length 



7-8 mm thyridopterygis 



$. Wings hyaline; body not entirely black; abdominal segments 



without red or white bands; propodeum not spined 6 



Wings brownish 7 



6. Abdomen mostly or entirely black 16 



Abdomen above rtiostly reddish brown with a blackish tinge; 



scape and pedicel stramineous, flagel blackish; legs pale 

 stramineous, fore coxae yellowish white lycaenae 



7. Length less than 8 mm 8 



Length 8 mm. (male); head and most of thorax black and 



with yellow marks; face below antennae yellow, antennae 

 without an annulus, brown; propodeum, abdomen, and legs 

 mostly reddish stramineous eximius 



8. Length less than 6.5 mm 9 



Length 6.5 mm.; head and thorax, including scutel, black; 



abdomen mostly reddish, first dorsal segment black ex- 

 cept an apical reddish spot occupying its middle third, 

 apical margin of fourth segment laterally blackish, fol- 

 lowing segments black above, those nearest the apex with 



22 



