
No. 426.] ULULA HYALINA LATREILLE. 429 
somewhat convex above, divided into nine segments ; tergites, except last 
two, separated along middle, so as to disclose the articular membranes, — 
each tergite, except the last two, with a cross groove nearly reaching the 
lateral borders; each segment bears a pair of lateral lobes fringed with 
fuscous hairs; each segment also bears a pair of spiracles below, near the 
bases of the lateral lobes; last segment conical, truncated. There is a 
circle of black curved spines around anus. 
Pupa (Fig. 14). 
Length r2 mm., diameter in cocoon 6 mm., breadth of abdomen 4 mm. 
The pupa resembles the imago in general, but is much smaller and com- 
paratively shorter. 
Head short, and compressed against thorax; eyes fuscous, with a deep 
vertical fold at right angles to the sulcus; antenne comparatively short, 

Fic. 15. — Ulula hyalina. Mouth of pupa from below: Z, labrum; , mandible ; 
Ż, maxilla; 2’, maxillary palpus ; 7, labium; ’, labial palpus. 
curved backward over the head, not knobbed, white; face light yellow, 
clypeus not distinct from labrum; mandibles (Fig. 15) stout, armed each 
with nine to we instet t inner edge of mandible rufo-fuscous, teeth black ; 
gular region lla bilobate, maxillary palpus of three segments ; 
labium a er: labial palpus slender, smaller at base than at 
tip; mouth parts and vertex clothed with fine white hair. 
Thorax short, cream-colored varied with ferruginous ; prothorax com- 
pressed against back of head; wing sacs small, white; legs slender, white. 
bdomen short, curved under so that the anus reaches the mouth, cream- 
colored, varied with ferruginous, covered with fine white hair, a narrow 
mid-dorsal groove ; each segment except the last two with a pair of spiracles. 
Cocoon spherical, diameter 7 mm., made of silk. 
UNIVERSITY OF TEXAS, AUSTIN, 
ovember 20, 1901. 
