10 



ENTOMOLOGICAL SOCIETY 



ACCOUNT OF A NEW TINGITID. 



By O. HEIDEMANN. 



Corythuca pergandei, n. sp. (fig. 2). 



Smaller than the oak or sycamore tingitids. The net-like reticulation 

 of the surface yellowish, the areoles more or less translucent; across 

 the elytra are two brown bands, one at base and the other near apex, 

 the latter one sometimes only faintly colored ; the membranous pronotal 

 margins also partly infuscated. Body black, except the margin of pro- 

 sternum, the humeral area, and the last two abdominal segments, which 

 are fulvous ; very dark specimens have the abdomen almost entirely 

 black. The pronotal hood, which entirely covers the head, is of mod 

 erate size, with the posterior part not very elevated ; it is about as long 

 as the triangular portion of pronotum and its posterior globular part is 

 not broader than one of the membranous pronotal margins; it is 

 abruptly constricted at about the middle, from there tapering gradually 

 towards front and forming an apex which, viewed from the side, is 

 hook-like. The areoles of the globular por 

 tion of the hood are quite large, hexagonal 

 or pentagonal, the others smaller and ir 

 regular. Antennae slender, pilose, and pale 

 yellowish, sparsely beset with a few very 

 long, bristly hairs, the apical joint knobbed 

 at tip, usually darker in color ; the third 

 one hardly more than twice the length 

 of the two basal joints taken together; 

 second joint shortest, half as long as the 

 first. The rostrum enclosed in the rostral 

 groove, which is rounded and closed be 

 hind, reaches the base of the metasternum. 

 The membranous pronotal margins are 

 bean-shaped and the surface is much 

 sunken before and behind the middle, 

 with the areoles nearly uniform in size. 



Pronotal processes broadly triangular, deeply punctured at base and 

 irregularly reticulated towards the apex ; the lateral margins only 

 raised anteriorly, having a few cells. Middle carina feebly elevated, 

 hardly one-half as high as the hood, rounding a little from its base and 

 slightly sinuated behind the middle to the tip; it has five or six cells, 

 sometimes one or two additional ones caused by a little cross-vein divid 

 ing the middle cell, which is then somewhat embrowned. In some 

 specimens the carina often appears truncated. The elytra when closed 

 are very little longer than broad, rather subquadrate; lateral margins 



FIG. 



2. Corythuca pergan 

 dei: Adult. 



