
No. 426] ULULA HYALINA LATREILLE. 427 
Larva (Fig. 4). 
Length 13 mm. Head cordate, broad behind, tapering anteriorly, swollen 
beneath, thicker behind than in front, fuscous varied with black, covered 
with hair except on mid-ventral line, deeply emarginated on posterior border 
above, leaving an angular projection in center of emargination. Anterior 
border fringed with serrate 
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beset at the end with serrated 
hairs, two of which are very uti. 
large and inclined backward. B 
Eyes black, six on upper sur- 4 iva 
face of ocular peduncle, five 4 
forming an incomplete circle Wow 
around the sixth, one on under 4 
surface of ocular peduncle near 
the posterior outer margin. F16. 12——U7u/a hyalina. menaa rana NEG 0e 
ular peduncle ; 2, antenn: 

Antenna (Fig. 12, a) 1% times 
as long as ocular peduncle, basal segment very large and broad at base, 
second segment much smaller, third still smaller and proportionately much 
Shorter, and followed by a piece not definitely segmented and still more 
slender; the succeeding nine segments are of nearly equal size, the terminal 
segment is as long as the three preceding and ends in a tuft of small hairs ; 
there is a lobe above the base of the antenna 
ending in a fringe of five hairs, — three stout 
serrated ones alternating with two slender smooth 
ones which terminate in stellate enlargements. 
Clypeus (Fig. 9) narrow behind, continued in front 
as a pair of semicircular lobes over bases of man- 
Ü Fe. 13.— U?wla  dibles, middle of anterior border continued down- 
t”  Agalina, Meo ward and reaching the mentum. Labrum (Fig. 
larva: x, mesothorax; 5, an` 10, 2) small, infolded into the mouth. Mandible 
ticular membrane; c, coxa;#, — long, swollen at base, straight for three-fourths its 
z", tms me length, then curving inward; curved portion free 
from hairs, inner edge set with three teeth, middle 
one largest, posterior one smallest, space between anterior and middle one 
smaller than that between middle and posterior one, mandible grooved on 
ventralside. Maxilla swollen at base, lying in. groove of mandible, with which 
it forms a duct leading to the mouth, edge near tip. Mentum 
(Fig. 6, m”) nearly square, anterior border produced in the middle so as to 

M 
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