No. 22.} HYMENOPTERA OF CONNECTICUT. 459 



Closterocerus Westwood. 

 ®C. cinctipennis Ashmead. 



Male: length i mm.; mostly blue; antennae brownish black; 

 pronotum, mesonotum and scutel golden green and strongly punc- 

 tate; legs brown, except trochanters, tips of tibiae and tarsi, 

 which are pale or whitish ; wings hyaline except for a transverse 

 brown band across the stigmal region and another apical trans- 

 verse brown band. 



°C. trifasciatus Westwood. 



^.ength 1.6 mm.; black; thorax bluish green; front wings 

 each with two arcuate fuscous fasciae and with the apex fuscous, 

 or with the anterior fascia nearly obliterated ; tarsi pale at base ; 

 abdomen chalybeous-black. 



This is a primary or a secondary parasite of the trumpet leaf- 

 miner of the apple (Tischeria malifoUella), 



C. tricinctus Ashmead. Pleurotropis. 



Male: length 1.1-5 mm.; mostly indigo-blue; vertex of head 

 with a black median band, antennae black; a median black band 

 extending from pronotum to apex of scutel ; wings hyaline, pubes- 

 cent, with three dusky, transverse bands, one beyond the middle, 

 another across the stigmal region, the third at the apical border ; 

 tarsi pale. 



Reared from a Lithocolletis larva on sycamore. 



Female : length nearly i mm. ; head blackish beneath, metallic 

 bluish with metallic greenish reflections above; thorax colored 

 like the head; legs mostly blackish or very dark, at least the 

 hind tarsi mostly yellowish, apical joints dark brown ; abdomen 

 mostly black with bronzy reflections, ovipositor slightly exserted ; 

 wings mostly hyaline, their basal half bounded by a faint, some- 

 what lunate, brownish mark, their basal three-quarters bounded 

 by a more distinct lunate brownish mark, a third lunate brown- 

 ish mark along the apical edge of the wings. 



New Haven. 



Bred 10 February, 1904, indoors. On record in Storrs Agri- 

 cultural Experiment Station Bulletin 45, 1906, as a parasite of 

 the trumpet leaf -miner of the apple {Tischeria malifoUella), lay- 

 ing its eggs on the surface of the mines. 



