No. 22.] HYMENOPTERA OF CONNECTICUT. 537 



7. Pedicel longer than second flagellar joint, last antennal joint 



twice as long as preceding astericola 



Pedicel as long as first and second flagellar joints united, 



last joint less than twice length of preceding vernoniae 



Pedicel as long as second flagellar joint, last joint one-third 



longer than preceding euurae 



8. Vertex transversely aciculated or striated posteriorly ...... 9 



Vertex smooth, or nearly so 13 



9. Coxae rufo-piceous 10 



Coxae black, legs black or brown-black salicicola 



10. Pedicel about as long as second flagellar joint baccharicola 



Pedicel longer than second flagellar joint 11 



11. Legs dark rufo-piceous, tarsi honey-yellow, femora and tibiae 



dusky at middle 12 



Legs rufous, tarsi pale, pedicel about as long as first two 

 flagellar joints united pinicola 



12. Second flagellar joint longer than third solidaginis 



Third flagellar joint slightly longer than second diplosidis 



13. Coxae black, pedicel as long as second flagellar joint, .asynaptae 

 Coxae pale or brown, pedicel as long as first two flagellar 



joints united actinomeridis 



P. striaticeps Ashmead. 



Black, shining. Head a little more than twice as wide as long. 

 Face smooth, vertex and occiput strongly striate. Antennae and 

 legs black; anterior and mid tarsi pale. Tegulae black. Length 

 0.6-1.2 mm. 



West Haven, 27 June, 1905 (H. L. V.). 



P. viticola Ashmead. 

 Shining black. Head a little over three times as wide as long. 

 Antennae black; tegulae rufo-piceous. Legs rufo-piceous or 

 brownish; tarsi paler. Abdominal petiole striated, second seg- 

 ment with two long striolated foveolae at base. Apical segments 

 with rows of punctures at base. Length 1. 2-1.4 mm - 

 Has been reared from Cecidomyid galls on grapevines. 



P. hiemalis Forbes. 



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

 Vertex only faintly aciculated, face smooth. Antennae brown- 

 black. Tegulae rufo-piceous. Legs dark brown or piceous ; tro- 

 chanters, tips of anterior femora and tibiae, bases of mid and pos- 

 terior tibiae, and all tarsi lighter. Length 0.8-1.4 mm. 

 Parasitic on the Hessian fly (Mayetiola destructor). 



