EASTERN UNITED STATES. 335 



^-shaped mark white, forking before the suture, the forks 

 having the shape of U ; mandibles stout, subtriangular, 

 non-dentate ; antennae (Fig. 92, /) two-jointed, exclusive 

 of the bulbus, the terminal joint twice as long as the 

 basal ; maxillae and labium and mentuni forming a sub- 

 quadrate piece, bulging out prominently from beneath, 

 the parts seemingly soldered together and separated only 

 by deep sutures ; the maxillary palpi (Fig. 92, e) consist- 

 ing of two broad joints ; the labium small, trapezoidal, 

 highly polished, with the spinneret (h) twice as long as 

 the palpi (g), which are small, recurved, and two-jointed, 

 exclusive of the bulbus; a few stout bristles on the 

 labrum, on the palpigerous piece of the maxilla, on the 

 mentum, on the base of the mandibles, and around the 

 ocelli, which are not easily distinguished from the more 

 globular of the shagreenations. Cervical shield more 

 glabrous than the head, and scarcely darker than the 

 body, except around the hind border. Thoracic legs 

 very short, but stout, with the horny parts deep brown, 

 and sparsely armed with bristles. Prolegs well devel- 

 oped, the hooks in a double row, and forming a distinct 

 purple-brown, transversely oval annul us, but slightly 

 broken at the narrow ends. Anal shield rounded be- 

 hind, coriaceous rather than corneous, and with a slight 

 increase of bristly hairs, especially around the border. 

 Stigmata large, with a purple-brown, oval annul us. 



Chrysalis. Average length 1.5 inches; cylindrical, 

 broadest at the shoulders, recurving ventrally towards 

 the tip, and terminating in a broad, flattened, posteriorly 

 rounded, transverse, slightly decurving flap, the borders 

 thickened basally and extending ventrally. Eyes prom- 

 inent, with a transverse carina ; wing-cases reaching the 

 B. z 33 



