74 CLASSIFICATION OF THE ALEYRODIOE. 
more mature examples the color may vary from whitish to those more or less 
mottled with brownish, with extreme cases almost uniform brownish black, 
though in these latter cases such examples have plainly been parasitized, and 
this color may have resulted from this fact. Typically, this brownish coloration 
occurs in dashes, from the outer margin inward, varying distances, and more 
or less radially. Along the dorsi-meson there is a more or less clear longitudinal 
central stripe, with an interrupted stripe of dark brown on each side, these lat- 
ter varying considerably in extent and distinctness. In well-marked specimens 
the radial wedge-shaped dashes may extend quite into these subdorsal bands of 
dark brown. 
Pupa-case, when young, with moderately rounded keel, otherwise flat; at 
length becoming somewhat convex, and raised on an unusually high vertical 
fringe of white wax. There is no lateral fringe, but just within the margin 
all around there is a series of groups of waxen rods. These rods arise from 
groups of from usually 22 to 26 circular pores. Each bundle of rods is sur- 
rounded with a rather short cylinder of wax, forming a sheath at base. In- 
dividually, 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, 
curling 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 transversely, 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 seta?, 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 subrectangular, 
about twice as wide as long. Lingnla large, broad, Bpatulate shaped, extending 
quite to caudal margin of orifice and bearing the USOal two pairs of subter- 
minal Bete. Margin of orifice extended upward all round, but more pronounced 
candad, into a thin and somewhat fluted rim. Operculum and Unguis mi- 
nutely setote <>r punctured. On the ventral surface the reduced legs and 
antcnme are quite distinct. 
.\<lult.< unknown. 
When the adult is discovered it will very likely prove to be an Alcurodicus. 
Collected by Mr. C. II. T. Townsend, July. ls«.»7. at San Francisco del Peal, 
TabaSCO, Mexico, on a plant called " I'alo de Cusano." Div. Eut., No. 7979. 
Described from numerous pnpa cases. 
Type.— No. 147G3, U. S. National Museum. 
