21 
der of wax, forming a sheath at base. Individually, the rods are 
rather small, glistening white, and inclined to curl at tip. These wax 
bundles vary considerably in length, but are, as a whole, short, curl- 
ing outward and downward from the case. Along central dorsal 
region is a broad and somewhat matted secretion of wax extending 
from vasiform orifice to cephalic end and covering the rounded keel. 
On each side of this central dorsal secretion is a curved and narrower 
secretion extending from just laterad of vasiform orifice to cephalic 
end. These three dorsal lines of wax may be much interrupted trans- 
versely, particularly in younger examples, but in older cases each is 
usually continuous. 
There is a very narrow marginal rim and the margin of case is 
minutely crenulated. Just within the margin all around is a series of 
rather long and slender tubercled sete, about 30 in all, or 15 on each 
side. The pores of the submarginal groups are rather small, simple, 
and circular. These may vary considerably in number in the different 
groups, and an occasional pore occurs outside of group. These groups 
of pores are usually in the brownish coloration extending in from the 
margin. There is usually a group of very small pores on each side of 
vasiform orifice, and a very pretty group on each side of the second 
abdominal segment. This consists of an irregular circle of small pores 
with a central rotate figure. The usual series of brownish colored 
compound pores with cylindrical rim and central rod are present, 
though comparatively small. On caudal end 4 of these pores occur in 
almost a transverse row, caudad of orifice, and from this 3 extend 
cephalad on each side to about the fourth abdominal segment. 
Vasiform orifice cordate, about as wide as long. Operculum sub- 
rectangular, about twice as wide as long. Lingula large, broad, spatu- 
late shaped, extending quite to caudal margin of orifice and bearing 
the usual two pairs of subterminal sete. Margin of orifice extended 
upward all round, but more pronounced caudad, into a thin and some- 
what fluted rim. Operculum and lingula minutely setose or punctured. 
On the ventral surface the reduced legs and antennex are quite distinct. 
Adults unknown. 
When the adult is discovered it will very likely prove to be an 
Aleurodicus. 
Collected by Mr. C. H. T. Townsend, July, 1897, at San Francisco 
del Peal, Tabasco, Mexico, on a plant called *t Palo de Gusano.” Div. 
Ent., No. 7979. Described from numerous pupa cases. 
6. Aleurodes aureocincta Cockerell. 
Jn. N. Y. Ent. Soc., 1897, p. 42. On Aquilegia, Organ Mountains, New Mexico. 
7. Aleurodes berbericola Cockerell. 
Jn. N. Y. Ent. Soc., 1896, p. 207. Onashrubby Berberis, Mescalero Reservation, 
Tularosa Creek, New Mexico. 
