No. 22.] HYMENOPTERA OF CONNECTICUT. 455 



Reared from a chrysalis of Thecla calanus. 



°T. caerulescens Ashmead. 



Female: length 1.5 mm,; mostly steel-blue; scape aeneous, 

 flagel subclavate, bfownish black, pubescent, its joints delicately 

 fluted, funicle 3-jointed, the first joint the longest, slightly longer 

 than the second, club fusiform, 3-jointed, a little longer than the 

 two last joints of funicle together, and stouter; tips of femora 

 and the tibiae and tarsi except last two joints, white, the two ter- 

 minal joints of tarsi fuscous, the hind tibiae toward base behind 

 with a brownish blotch or spot ; wings hyaline, veins pale brown, 

 abdomen conic-ovate, pointed at tip, a little longer than head 

 and thorax combined. Male: length 1.2 mm,; funicle 4-jointed; 

 abdomen oblong-oval, cylindric, not longer than head and thorax 

 together ; otherwise as in female. 



Parasitic on Habrobracon gelechice, a primary parasite of 

 Canarsia hammondi. 



T. sp. 



New Haven, August, 1905 (W, E. B.). Reared from Baccha 

 fascipennis or Phenacoccus acericola. 

 °T. sp. 



Reared from (Pieris) Pontia rap(E, Diastrophus cuscutcrfor- 

 mis, clover-flower midge {Dasyneura legumicola), Cratotechus 

 orgyicE, Dibrachys boucheanus. Possibly a secondary and tertiary 

 parasite of the white-marked tussock moth {Hetnerocampa leu- 

 costigma), with Cratotechus orgyicB and Dibrachys boucheanus, 

 respectively, as hosts. 



ENTEDONTID^. 

 Key to Genera. 



1, Notauli distinct and complete 2 



Notauli incomplete, at most indicated only anteriorly. Fe- 

 male: abdomen sessile or subsessile, petiole, if present, 

 very short, ovipositor not exserted; wings with marginal 

 cilia, knob of stigmal vein sessile or subsessile; thorax 

 and scutel smooth, impunctate, antennse 8-jointed, with one 

 ring-joint, not tapering toward apex, joints of funicle sub- 

 moniliform. Male: abdomen as in female, i. e., sessile or 

 subsessile; wings with marginal cilia; antennae 7-jointed, 



or jointed as in the female Pediobius p. 458 



2. Abdomen sessile or subsessile 3 



Abdomen distinctly petiolate S 



