37 
Passerini, in Gli Afidi (1860), describes the root form as follows : 
Schizoneura venusta, m. 
Femina vivipara aptera ovata-convexa, pallide viridis, vel interdum rubella; capite, 
fasciis dorsalibus anticis tribus, macula discoidali quadrata, fasciis posticis duabus, 
punctisque marginalibus nigris. Rostrum crura media attingens. Long., 1’. 
Femina vivipara alata capite et thorace nigris. Abdomen viridi luteolum vel ru- 
bellum, vittis transversis anticis duabus, macula discoidali subrotunda, fasciis dua- 
bus posticis, punctisque marginalibus nigris. Nectaria tuberculiformia nigra. Ala 
hyaline, venis stigmateque nigris. Long., }/”, 1’. 
Nympha lutea, capite et thorace pulverulentis. 
Turmatim in radicibus Setariz viridis, 8. glauce, 8. italics, Panici glabri, Eragros- 
tidis megastachyz et Ceratochlow australis. Autumno. 
Valde similis Schizoneure corni, que autem diversa dorso omnino nigro in apteris, 
et abdominz basi et apice tantum albido in alatis. 
Thomas gives a translation in his work on Aphid, which reads: 
Schizoneura venusta Pass. 
Wingless female.—Ovate convex, pale green, and sometimes reddish; head, three 
anterior dorsal fasciz, a quadrate discoidal spot, two posterior fascie and marginal 
points, black. Rostrum extending about to the middle legs. Length (of body), 1™™., 
Winged female.—Head and thorax black. Abdomen, greenish-red or yellowish; two 
anterior fasciz, a subrotund discoidal spot and marginal points, black. Nectaries 
tubereuliform and black. Length, ~ to 1™™. 
Pupa, yellowish, head and thorax pulverulent. Found on roots of Setaria viridis, 
S. glauca, S. italica, Panicum glabrum, Eragrostis megastachya and Ceratochloa aus- 
tralis in autumy. 
This translation is incomplete and imperfect, especially in the dimen- 
sions, which are given as millimeters instead of lines (twelfths of an 
inch), which would lead one to suppose them about half the actual size. 
So far as I can see, Passerini’s original description*is entirely appli- 
cable to the specimens obtained from roots of grasses here as well as to 
fresh specimens of corni on Cornus leaves. 
Walsh published the following descriptions (in 1862) in the Proceed- 
ings of the Entomological Society of Philadelphia, Vol. I, p. 304. 
Eriosoma? fungicola n. sp. 
From recent specimens. Body black, with a plumb-like bloom ; basal half of abdo- 
men and whole of venter yellow. Antennae and legs black. Wings hyaline with a 
dusky tinge; veins dusky, black on the basal half of the costa; third discoidal hya- 
line nearly to its fork, stigma palish brown. Numerous individuals unaccompanied by 
larve, occurred on a large moist fungus a hundred yards from the nearest trees, 
which were all oaks. Beat solitary individuals unaccompanied by larve or woolly 
matter, on two separate occasions from oaks, which, when dried, differ only from the 
dried specimen of those found on fungus by the metathorax being varied with pale 
greenish, as well as the base of the abdomen. Length to tip of wings .12to.13 inch. 
The antenne do not quite attain the base of the first discoidal when the wings are 
expanded, and the stigma is rather more than twice as long as wide. Six speci- 
mensinall. £. querci Fitch is larger (.16 inch) and is entirely black. Differs also 
from the other described United States species. 
Eriosoma? cornicola, n. sp. 
Differs from the preceding only in the body being entirely black. Numerous indi- 
viduals, unaccompanied by any flocculent matter, and so far as I recollect by larve, 
occurred in September on the lower side of the leaves of the Red osier dogwood. 
Ten specimens. 
