502 ANTHOCORINA. 



The iindeA'eloped form {Xylocm'is rujipennis, L. Duf.) is common 

 under bark. It differs from the developed form in the absence of 

 the menibrane of the elytra, and by the corium being short, obliquely 

 truncate, and of a yellow-brown colour. It has been considered a 

 distinct species until identified as the undeveloped form of Xylocoris 

 bicolor, Scholtz, by Dr. Fieber (' Wiener Entomol. Monatsschrift,' 

 1863). 



Genus 6. — Tripiileps, Fieb. 



Head broad, short. Face short, the end obtuse ; central lobe 

 broad; side lobea narrow, as long as the central lobe. Antennae 

 thickest in the ^ ; 1st and 2nd joints stoutest, 2nd clayate ; 3rd 

 filiform, or obtuse fusiform ; 4th, slightly fusiform, compressed. 

 Eyes large, the whole length of the crown. Ocelli distant, inserted 

 close to the base of the eyes, large in the ^ , small in the $ . 

 Rostrum short, scarcely reaching to the mesosternum ; 1st joint only 

 ith as long as the head. 



Thorax. — Pronotum broad, trapeziform ; anterior margin straight, 

 a little constricted ; anterior angles depressed, sides very slightly 

 rounded, the margin sharp, slightly reflexed, widest in front ; 

 posterior margin concave, sinuate towards the hinder angles ; disk 

 transversely callous on the 1st half, with a transverse depression 

 behind the callosity, mostly deepest outwardly ; posterior half flatter. 

 Scutelhim large, deflected from the base into a wide, deep, trans- 

 verse fovea in the middle. Elytra ; anterior margin reflexed, slightly 

 rounded as far as the base of the cuneus, where it is constricted ; 

 Emholium not wide ; claval suture depressed ; Cuneus and Membrane 

 deflected posteriorly ; membrane with 3 nerves. Sternum ; Uleso- 

 sternum anteriorly compressed in the middle to a point, with a deep 

 hollow on each side of it ; sides compressed ; disk hindwardly convex, 

 the middle of the posterior margin deeply notched ; Metasternum 

 cordate, short, broad, convex, the margin reflexed. Legs rather 

 short and stout ; tarsi short ; 3rd joint longest. 



Species 1. — Triphleps Niger. 



Salda nigra, Wolff, Ic. Cim. fig. IGl (1804). 

 Triphleps niger, <?, Fieb. Europ. Hem. 140, 2 (1861). 



Black, shining. AnienncB short and stout ; corium in the ^ more or 

 less piceous. Leys black ; tibia; ; 1st pair only yellow. 



