1914.] 



NATURAL SCIENCES OF PHILADELPHIA. 



637 



sector, which is nearly straight, with only a slight curvature, prac- 

 tically as in Psylla caudata. 



(3) The mediocubital fork is some distance basad of the separation 

 of the radius from its sector, as in Psylla. 



(4) The separation of the radius from the radial sector is at prac- 

 tically the same level as the separation of the branches of the cubitus, 

 the cell between the cubital branches being long, the arrangement 

 herein practically as in Pachypsylla venusta. The cell in the forks 

 of the media is, however, as in Psylla. 



Except for the shape of the cell in the forks of the cubitus, the 

 insect could go in Psylla; herein it is less specialized than Psylla. 

 The outline of the wing, as figured, is only approximate. 



Psyllites crawfordi n. sp. 



Leng-th about 2 mm., anterior ^ving less than 1.5 mm.; wdngs clear, 

 ■without markings. The following measurements are in microns: 

 length of upper wing, about 

 1,440; radial fork to base of 

 wing, about 690 ; radial fork to 

 end of radial sector, about 

 752; medio-cubital fork to 

 branching of cubitus, 224; 

 medio-cubital fork to branch- 

 ing of media, 624 ; cell between Psyllites crawfordi, wing, 

 cubital branches on wing-mar- 

 gin, 320; fork of media to level of radial and cubital forks, about 416; 

 fork of media to nearest point on anterior branch of cubitus, 208. 



Miocene shales of Florissant, Wilson Ranch (Wickham). On the 

 same piece of shale as the type of Heteromyiella miocenica and very 

 close to it. Dedicated to Mr. David L. Crawford, whose monograph 

 of the Psyllidse of the New World has been of great use in the study 

 of the fossil species. 



HYMENOPTERA. 



PAL^OTELEIA n. gen. (ScelionidiB). 



Elongate, with the same form as Chromoteleia semicyanea Ashmead, 

 except that the abdomen is broader, fully twice as broad at base, 

 broadest about the end of the second segment, and with the apical 

 1 mm. or more conspicuously narrower than the part before. An- 

 tennae inserted very close to the middle (vertical) line of face, perhaps 

 on a frontal prominence; scape apparently short; flagellum rather 

 long and of uniform width, not at all moniliform. Head broad. 



