1893.] Entomology. 403 
The following description is drawn from a puparium of Blepharipeza 
adusta Lev., from which emerged a 9? specimen of the fly, both of 
which were sent to me by Mr. Harrison G. Dyar, who bred the fly 
from a larva of Halisidota argentata. It will serve to indicate the 
distinctive features of the puparium in this interesting genus. I do 
not know that any description has ever been published of the pupa- 
rium in this group, except the very brief one of Belvosia bifasciata by 
Dr. Riley (Bull. 3, U. S. Ent. Com., p. 42). The latter indicates the 
puparium of Belvosia to be very different from that of Blepharipeea 
in the structure and situation of the anal stigmata or spiracles. This 
may serve to emphasize the distinctness of the two genera, which some 
authors have been prone to combine under the name Belvosia. 
Description of Puparium.—Length, 10 mm.; greatest width and 
thickness, 5 mm. Color dark brown. Almost cylindrical, perfectly 
rounded at both ends, the anterior end a little less in diameter than 
the posterior, the transverse and dorso-ventral diameters of each seg- 
ment equal. There appear to be 12 segments, including the capital 
and anal plates, but the segments are very ill-apparent on the posterior 
end, very plain anteriorly. A belt or zone of circular (longitudinal 
_ to the belt, transverse to the puparium) minute corrugations alternate 
with one having a rugose surface, there being 10 of the corrugated or 
fluted belts, and 10 of the rugose or punctured belts. The rugose belts 
are about one-half the width of the fluted belts, and there is appar- 
ently one of each to each segment of the puparium, not including the 
capital and anal plates. The anterior one-third of each segment is 
` occupied by the rugose belt, and the posterior two-thirds by the fluted 
belt, these belts more or less clearly defining the segments. Mouth 
parts of larva showing on capital plate as a wrinkled protuberance 
consisting of 4 principal eminences, separated from each other by a 
wrinkle or fold of the integument. Each eminence is more or less 
minutely wrinkled, the wrinkles as well as the large folds radiating 
from the center of the protuberance. Anal stigmata showing an anal 
plate at center of posterior extremity of puparium, as a pair of organs, 
each marked by 3 short raised ridges, the two upper ones more or less 
parallel with each other, inclined outward above and at an angle of 
about 45 degrees with the lower one, which is not quite parallel with 
the transverse diameter of the puparium. These ridges are usually 
more or less slightly curved ; when curved, it is always with the slight 
convexity outward from the center of the organ or stigma. The two 
stigmata occupy the same transverse plane of the puparium. What 
appears like an anal vent is situated exactly ventrally of the pair of 
