NO. 2281. A REVISION OF CH ALGID-FLIES— PHILLIPS AND EMERY. 46 5 



abdomen; 3 shortest, 6 usually longest; 4, 6, and 7 subequal; 6 rarely 

 shorter than 4 or 7, usually longer than either. 



Legs: Basal two-thirds of upper and basal one-third of lower 

 faces of front, basal one-half of middle femora, middle and hind 

 tibiae fuscous; hind femora fuscous to piceous; front tibiae and all 

 knees testaceous to dusky. 



Antennae: First fimicle plus ring-joint longer than pedicel; all 

 funicle joints usually longer than broad; club joints also usually 

 longer than broad and only slightly wider than funicle. Scape black. 



Species medium to large in size. 



Male (pi. 47, fig. 9). — Length, 2.0 mm. Praescutum as in female. 

 Pronotal spots occupy about one-half anterior dorsal margin of 

 prothorax, occasionally, however, scarcely visible from above. 



Propodeal groove deep, complete. Propodeum very rugose within 

 and laterad of groove. 



Petiole about same length as hind coxae and rugose to granulose. 



Legs: Hind and middle femora fusco-piceous except at knees; 

 front femora fuscous in basal half; hind and middle tibiae fuscous 

 to dusky; front tibiae and knees reddish-brown. 



Antennae : Flagellum with pedicel equal to or longer than head 

 and thorax combined. Scape distinctly broadest in distal half and 

 there is a distinct shoulder near the distal extremity; about same 

 width as first flagellar joint in lateral profile; a little over three times 

 as long as broad, exclusive of base. 



Type-locality. — Charlottesville, Virginia. 



Type.— C^t. No. 21768, U.S.N.M. 



Described from many females and males reared in cages under 

 artificial conditions and from specimens reared from stems of species 

 of Elymus collected in Arkansas, Kansas, Illinois, Indiana, Ohio, and 

 in Virginia. It makes inconspicuous galls near the head of species 

 of Elymus. Males normally occur. 



HARMOLITA ELYMOPHTHORA. new species. 



Plate 40, fig. 5 ; plate 44, fig. 14 ; plate 46, fig. 10 ; plate 47, fig. 2. 



Female. — Length 3.25 mm. Praescutum rugulose. Pronotal spots 

 large to very large, occupying two-thirds to three-fourths anterior 

 dorsal margin of prothorax, sometimes dull. 



Propodeum Avith a continuous, moderately narrow, deep, median, 

 longitudinal groove, usually margined throughout, though sometimes 

 only in the anterior one-half; very rugose laterad of groove and in 

 the posterior half of groove ; anterior half of groove almost smooth, 

 though it may be slightlj^ gi-anulose; groove usually much narrower 

 in posterior half. 



62055— 20— Proc.N.M.vol.55 31 



