456 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol. 55. 



was collected from several localities in New York, Ohio, Pennsyl- 

 vania, also from Michigan and Salt Lake City, Utah; from specimens 

 identified for the writers by Prof. E. W. Doane; from specimens in 

 the Harris collection of the Boston Society of Natural History that 

 were collected in Virginia in 1852 and labeled Isosoma tritici; from 

 five specimens in the United States National Museum collection bear- 

 ing the label, Verdun, Ontario, Canada; also five females in the 

 National Museum collection labeled with the manuscript name, 

 '^Pteromalus hordei Harris" from Virginia, numbered 3786 to 3790. 

 This shows conclusively that this species was often confused by 

 earlier writers with II. tritici, and if all the old types were in ex- 

 istence it would undoubtedly be found that some represent this 

 species. 



This species is a gall former, making a conspicuous hardened en- 

 largement in the sheath surrounding the head of wheat. The head 

 rarely grows out of the sheath and rarely does the head develop any 

 grain. It breeds only in wheat and is normally thelyotokous, males 

 never having been observed. 



HARMOLITA SECALIS Fitch. 



Plate 41, fig. 7 ; plate 43, fig. 12 ; plate 46, figs. 5, 14. 



Enrytoma secale Fitch, Amer. Agr., vol. 20, p. 236, Aug., 1861. 

 Isosoma secale (Fitch) Howakd, U. S. Dept. Agr., Div. Eut, Bull, tech, 

 ser. No. 2, p. 19, 1896. 



Female. — Praescutum rugulose. Pronotal spots range from small 

 to large, occupying less than one-half to two-thirds anterior dorsal 

 margin of prothroax. 



Propodeum with a very broad, shallow, median, longitudinal 

 groove. Groove broadest near the center, rarely distinctly margined 

 posteriorly; usually granulose within and laterad of groove; some- 

 times quite rugose laterad of groove; low cross rugae sometimes 

 within the groove ; spiracular carinae usually interrupted, low and in- 

 distinct; fimbria prominent. 



Abdomen equal to or slightly longer than head and thorax com- 

 bined; segment 2 about one-fifth the length of abdomen exclusive 

 of 1 ; 3 shortest, 5 longest; 4, 6, and 7 subequal ; 4 may be either longer 

 or shorter than 6 or 7. 



Legs: Femora in basal one-half to tAvo-thirds and middle tibiae 

 fuscous ; front tibiae, knees, and hind tibiae testaceous ; middle tibiae 

 as a rule are a shade darker. 



Antennae: First funicle plus ring joint equal to or slightly longer 

 than pedicel; all joints of funicle and club distinctly longer than 

 broad ; club narrower than the 3 preceding joints. Scape black. 



Species medium to large in size. 



31 ale (pi. 46, fig. 5). — Praescutum same as in female. Pronotal 

 spots minute, scarcely visible from above. 



