ART. 17. MONOPHLEBINAE AND MARGARODINAE—MORRISON. 9 
two submarginal, these confused anteriorly, and with additional rows 
of slender setae both dorsally and ventrally; anal tube apparently 
much as in fuscus; with four pairs of small circular ventral cicatrices. 
4 
Ley, 270 
Sat 
Mt 
LEN 
Fic. 4.-—MONOPHLEBULUS CRAWFORDI (MASKELL). LARVA. A, ANAL TUBE, X335, WITH DETAIL, 
X1,000; B, PORTION OF DERM, X500; C, DORSAL AND VENTRAL, X57.5; D, PORE, 1,500; E, PORE 
FROM MOUTH OF ANALTUBE, X1,500; F, MARGINAL TUBLAR PORE, TWO VIEWS, X1,500; G, ANTENNA, 
115; H, cLaw, 640; I, ABDOMINAL SPIRACLE, X1,500. 
The adult female of this species has been redescribed primarily from 
the type slide in comparison with other specimens, some recieved by 
the Bureau of Entomology from Crawford in 1888, and probably from 
the same material which he sent to Maskell. 
MONOPHLEBULUS PILOSIOR (Maskell). 
Piste 1, dig. 2. 
References.— Monophlebus, sp. Koebele, Bull. 21, U.S. Dept. Agri., 
Div. Ent., 1899, p. 20.—Drosicha crawfordi, var. pilosior, Fernald 
Cat. Cocc. World, 1903, p. 19. 
This seems without question to be a distinct and valid species 
rather than a variety, the differences between it and crawfordi being 
particularly emphasized in the discussion following the specific 
description. 
This species is represented in the Maskell collection under the 
name crawfordi, yar. pilosior, by the following slides: One of ‘“ Adult 
female 1892,” one of “‘ antennae 9 , 1892,” one of “larva 1892,’ and 
one of “larva 1893,’’ and by a few specimens under No. 285. 
The following description is based on Maskell’s slides, together 
with one other, of an adult female, made from the type specimens. 
