62 PROC. ENT. SOC. WASH., VOL. 24, NO. 2, FEB., 1922 



2. Type female; lower valves obtuse at apex, upper valves short triangular 



at the base, apex prolonged and upcurved; tips of both pairs nearly 

 on a level. (Type description of.) whartoni Needham. 



3. Rs leaves R obtusely or at a curve 4 



RS leaves R acutely or straight 5 



4. RS shorter; wings broader; abdomen dark; October form; anal style 



completely visible in the male; sternite valves reach to the tip of the 



tergite in female '. . . . sujfusca, n. sp. 



RS longer; wings narrower; pale species; July form; anal style half covered 

 by ninth sternite in male; sternite valves not reaching the tips of the 

 tergites in the female intermedia, n. sp. 



5. RS long; wings narrow; cell 1st R I, distinctly narrow; base of anal style 



almost completely covered by the ninth sternite . . . kooteniensis, n. sp. 

 RS shorter; wings broader cell 1st R I, deeper; base of anal style about half 

 covered by ninth sternite intermedia, n. sp. 



The last item is the description of a new Chionea allied to 

 noveboracensis Alex. I wrote the description and sent it to Dr. 

 Alexander asking him to be kind enough to compare it with the 

 type female of noveboracensis ', in which specimen it is most 

 unfortunate that the antennae are missing, as the antennae of 

 this new species are distinct from any known species of Chionea, 

 because of the few number of segments, having only five 

 whilst six is the accepted number for the genus. Again I 

 take much pleasure in naming it after Dr. C. P. Alexander who 

 has already done so much work on this genus, and at the same 

 time I thank him for his kindness in comparing the notes. 



Chionea alexandriana, n. sp. 



Male and female. Length about 5 mm., width about 1 mm. 



Description of male and female. Antennae, five segments. Segment one 

 long, cylindrical, with some dorsal, basal, black hairs. Segment two cylin- 

 drical, swelling to an apical club, a whorl of black hairs at % and another at% 

 with more hairs and longer. Segment three short, about halt the length of one 

 or two, conical, with a few short hairs. Segments four and five short, cylindri- 

 cal, four with two or three basal, five with three or four terminal, very long, 

 golden hairs, longer than the whole five segments together. Segment one equals 

 two in length, and one is longer than 3, 4, 5 together. Antennae, palpi, head, 

 thorax, abdomen, black with slight gray pruinosity, in strong lights a brownish 

 shade. Head with some coarse black hairs from occiput to vertex. Collar 

 with a bunch of black hairs each side dorsally. Thorax with a scattered bunch 

 of black hairs on the dorsum as long as the haltres, which are pale yellow. 

 Abdomen with apparently seven complete segments in the female each with 

 a few short scattered black hairs. (In strong sunlight al! hairs shine brownish.) 

 Legs with all femora very slightly incrassated, brownish black (in strong sunlight 

 brown), tibia and tarsi the same, all with longitudinal rows of black hairs, 

 bristly. Male hypopygium with base very solid, thick, somewhat conical to 



