No. 22.] HYMENOPTERA OF CONNECTICUT. 539 



tarsi honey-yellow. Petiole, and foveolae on second abdominal 

 segment, striolated. Length 0.8-1 mm. 



Has been reared from Cecidomyid galls on asters. 

 P. actinomeridis Ashmead. 



Polished black. Head two and one-half times as wide as long. 

 Vertex very faintly aciculated. Antennae dark brown, scape paler 

 toward base. Legs dark rufous, the anterior tibiae and all tarsi 

 honey-yellow. Length 0.6-1.2 mm. 



Has been reared from Cecidomyid galls on Actinomeris squar- 

 rosa. 



P. vernoniae Ashmead. 



Black, polished. Head nearly three times as wide as thick, the 

 vertex not aciculated. Antennae brown, or dark brown, pedicel 

 in the female longer than the first two flagellar joints united. 

 Legs brownish piceous; tips of mid and posterior tibiae and all 

 tarsi honey-yellow. Length 0.6-0.8 mm. 



Has been reared from galls on Vernonia noveboracensis. 



P. pinicola Ashmead. 



Shining black. Head two and one-half times as wide as long. 

 Vertex not aciculated. Antennae brown. Tegulae piceous; legs, 

 including coxae, dark rufous; the tarsi and sometimes the tip of 

 the anterior tibiae honey-yellow or whitish. Length 0.8-1 mm. 

 A parasite of Cecidomyia resmicola. 



P. baccharicola Ashmead. 



Shining black. Vertex posteriorly transversely aciculated. 

 Face with some aciculations just above the antennae. Antennae 

 piceous, the scape sometimes pale at base and apex, as is also 

 the flagellum at base. Tegulae piceous; legs, including coxae, 

 rufo-piceous ; trochanters, base and tips of tibiae, and the tarsi 

 honey-yellow. Length 1-1.2 mm 



Has been bred from a Cecidomyid gall of Baccharis halimi- 

 folia. 



P. salicicola Ashmead. 



Polished black. Head three times as wide as long, vertex and 

 occiput strongly transversely aciculated, face smooth. Antennae 

 black, pedicel pale at tip. Tegulae black. Legs black, the tibiae 

 and tarsi piceous. Foveolae at base of second segment faintly 

 striolated. Length 0.8-1.4 mm. 



