366 ENTOMOLOGICAL NEWS. [Oct., ’o8 
of Aphelinus, with one exception, by the possession of hairy 
eyes, and this character, taken in connection with its different 
host relation, has suggested the advisability of erecting a new 
genus to contain it and the allied forms that have since been 
discovered. It also differs in its black color from the Coccid- 
iihabiting species. A single individual of an Aphelinus having 
hairy eyes and being black except for the head and extremities 
of the abdomen was collected by Koebele in the Santa Cruz 
Mountains, California, and has been described by the author 
(Technical Series No. 1) as A. flaviceps, the statement being 
made at the same time that the species would probably ulti- 
mately be found to be parasitic upon some Aphidid, this con- 
clusion being reached from the prevalence of the dark color and 
from the possession of hairy eyes. A. flaviceps, however, has 
never since been reared, and the accuracy of this theoretical 
suggestion has not been proved or disproved. Comparatively 
recently however two additional species have been reared from 
Aphididae, which are also characterized by the possession of a 
preponderance of black in the coloration and by eyes that are 
hairy. These species, A. semiflavus n. sp. and A. nigritus n. 
sp. are described below. 
TABLE SEPARATING THE APHELINUS PARASITES 
OF APHIDIDAE. 
FEMALES. 
Eyes obviously hairy. 
Head black, base of abdomen yellow, hind femora pallid . mali Hald. 
Head yellow, abdomen yellow at base and tip, all legs orange- 
yellowed ey. cd fo ele alin ie lee flaviceps How. 
Head and abdomenentirely black. ......... nigritus n. sp. 
Eyes obscurely hairy. 
Abdomen light yellowish, darker at margins, all legs yellowish or 
sliptithy Masky 6202.05 Fe Se semiflavus n. sp.’ 
MALES. 
Third funicle joint twice as long as pedicel and six times as long as 
broad ; club one-fourth longer than third funicle joint 
semiflavus n. sp. 
Third funicle joint very slightly longer than pedicel, and slightly 
more than three times as long as broad; club rather more than 
twice as long as third funicle joint ........ mali Hald- 
