Mr. A. White on the Pupa-case of a Coleopterous Insect. 287 



The insect I am about to describe belongs, I believe, to La- 

 cordaire^s 39th family, Dascyllides, and his second tribe. Das- 

 cyllides vrais, although it has some points connecting that family 

 with the previous one, that of Rhipicerides, particularly the 

 genus Callirhipis of Latreille. It differs essentially from West- 

 wood's genus Lichas, established on a fine Elater-like insect 

 found by Mr. John Bowring on Camellias in the island of Hong 

 Kong. It comes in Section 1. of Lacordaire (Coleopteres, iv. 

 p. 264), and may be named Paralichas. 



The species I propose to name 



Paralichas Guerinii. PI. VII. fig. 1. 



P. obscurus sericeo-velutinus ; thorace pallido, maculis binis magnis 

 dorsalibus nigris ; elytris subsulcato-striatis, linea mediana longitu- 

 dinali, praesertim sericea. Long. $ 5^ lin., c?4^-5 lin. 



Hab, China Borealis (Shang-hai). (Coll. Mus. Brit. R. Fortune.) 



Head as wide as the thorax in front, decumbent, impressed be- 

 hind; eyes rather large, round, somewhat prominent. The 

 antennae in the male have the joints, from the third to the 

 tenth, with a longish branch proceeding from near the apex, 

 and directed inwards ; the last joint is long and linear. Jaws 

 strong, curved, and with a single tooth before the pointed 

 apex. Maxillary palpus with first joint very small; second 

 and third elongate, about equal ; third oblique at tip ; 

 fourth thick and cup-shaped ; fifth conically elongated, and 

 somewhat blunt at end. Labial palpi with terminal joint 

 thickened, longish ovoid. Antennae of female from the third 

 to the ninth joints triangularly dilated, especially the fifth, 

 sixth, seventh, eighth, and ninth joints, which have a tendency 

 to pectination. 



Thorax wider than long, somewhat narrower in front ; fore edge 

 straight, except at the angles, which project a little over the 

 eyes, and form with the sides, which slope inwards and have a 

 sharp lateral ridge, a kind of shelter for the head, which may be 

 drawn almost entirely under it : the back of the thorax is very 

 convex, especially on the fore part ; hind edge bulging about 

 the middle over the scutellum, widely sinuated on each side 

 of the bulge ; the posterior angles are sharp, and, when viewed 

 from above, seem pointed towards the shoulder of the elytra ; 

 a transverse depression across the thorax, close to the hind 

 edge. The thorax is brownish yellow, with two large brownish- 

 black spots occupying nearly all the dorsal surface, and only 

 separated by a narrow light-coloured line. 



Scutellum rather wider than long, straight in front, rotundato- 

 triangular on the sides and tip ; yellow. 



Elytra almost as long as abdomen, with nine or ten distinct 



