302 W. H. ASHMEAD. 



thorax and abdomen black, the latter polished, the thorax is coarsely punctate 

 and finely pubescent; wings hyaline, veins brown. 



Described from numerous specimens bred from gall Aadricus hata- 

 toiden Ashm. in 1881. 



S. bicolor Ashmead. 



Length .12-.14 inch. Head, thorax, antennae and legs yellowish; thorax and 

 head finely rugoso-punctatate ; a small brown blotch on vertex of head and a 

 medial stripe on mesoscutum and along the hinder edges; antennae 15-jointed in 

 % , 13-jointed in 9 5 abdomen polished black: wings hyaline, veins yellowish. 

 One $ is without the longitudinal medial stripe. 

 Described from several specimens bred from gall Andricus foliatus 

 Ashm. 



S. inedtillse Ashmead. 



Length .07-.16 inch, it varying greatly in size. Head and thorax coarsely ru- 

 goso-punctate ; antennae 1.5-jointed in 9; 15-jointed in %, they with head and 

 sides of collar yellowish; eyes and thorax brown; abdomen black, smooth and 

 shining; wings hyaline, veins yellow. 



Described from numerous specimens bred from gall Andricus medidlse 

 Ashm. 



Although this species varies greatly in size, there is a remarkable simi- 

 larity in coloralion. 



SAI»HOI^YTUS Forster. 

 S. geniinari^ Ashmead. 



%. Length .08 inch. Black, shining; head finely punctate, pubescent; an- 

 tennae 15-jointed, light brown, becoming darker towards tip; thorax with parap- 

 sides distinct and finely microscopically scratched; scutellum rugoso-punctate ; 

 abdomen black, polished ; legs dark brown, excepting anterior tibiae and tarsi 

 which are lighter or reddish ; wings hyaline, veins yellowish and the radial area 

 is open. 



Described from one S specimen bred from gall Andricus gemmaria 

 Ashm. 



AL.I..OTRIA Westw. 

 A. lacliiii Ashmead. 



Length .06-. 10 inch. Black and lightly polished, with antenuje 15-jointed in 

 %, , 14-jointed in 9 ; legs and antennae yellow testaceous, with the tip of antennae 

 and posterior femora infuscated ; the scutellum is rounded, smooth and convex, 

 but with two small fovese at base ; wings hyaline. 



HL.EIDOTOMA Westw. 



K. Tagabiinda Ashmead. 



Length .17 inch. Slender, highly jjolished and of a dark wine red; antennae 

 13-jointed, highly polished, very slightly pubescent and gradually thickening 

 towards tip, joints three to seven sub-equal, following joints more or less monili- 

 form, terminal joint fusiform, and one-third longer than the penultimate; thorax 

 smooth, high, slightly compressed at sides; scutellum deeply excavated at base 

 with two projections at sides, and an elevated tupuliferous disc; abdomen com- 



