HEMIPTERA. 339 



second joint longer than the third, fourth about equal to the 

 second. Rostrum reaching the middle of the space between the 

 anterior and intermediate coxae, of four joints; second joint 

 longest ; basal joint very thick, about as long as the fourth ; fourth 

 longer than the third. Thorax with the lateral angles produced 

 into broad flat processes, or strong, pointed spines ; the posterior 

 margin produced in a semicircle over the base of the scutellum ; 

 breast with a very strong keel, attached to the metasternum, 

 where it is somewhat pentagonal, deeply emarginate posteriorly 

 for the reception of the ventral spine, produced anteriorly in a 

 long free spine reaching far forwards and considerably depressed 

 at its apex ; mesosternum with a distinct canal in which the apex 

 of the rostrum reposes. Scutellum somewhat obtuse at the apex, 

 distinctly channelled. Abdomen oblong, nearly as broad at the 

 apex as at the base, projecting far beyond the elytra on each side, 

 with the posterior angles of the apical segment produced ; vulvar 

 plates very broad ; basal plates received in a semicircular emar- 

 gination in the centre of the apical segment of the abdomen; 

 lateral plates transverse, with their apices acute and with a strong 

 tooth in the centre of their posterior margins; central plates 

 united, forming a single, somewhat quadrate piece, widened be- 

 hind, with two strong spines on its posterior margin and its lateral 

 angles rather acute ; there are thus eight teeth in the space be- 

 tween the posterior angles of the abdomen. Legs moderate; 

 thighs unarmed ; tarsi of three joints. 



1. PYGOPLATYS validus, n. s. PL XL fig. 1. 



P. fuscus, punctatissimus, thorace scutelloque punctis numerosis 

 magnis nigris; processibus humeralibus latis, apice truncatis, 

 angulis posticis spinosis ; scutello apice nigro. $ . 

 Long. lin. 14, lat. hum. 12. 



Brown, very thickly and minutely punctured. Thorax with 

 numerous scattered coarse black punctures across the disc and on 

 the lateral processes ; the posterior dilated portion coarsely punc- 

 tured ; lateral processes very broad, slightly convex above, con- 

 cave beneath, truncated at the apex, with their anterior angles 

 rounded, their posterior angles ( $ ) acutely spinous. Scutellum 

 with the disc coarsely punctured with black, the apical portion 

 deeply channelled longitudinally, with the tip black. Coriaceous 

 portion of the elytra dark reddish brown, with the nervures 

 slightly elevated, smooth ; membrane semitransparent, brownish. 

 Abdomen above pitchy brown, obscure, with the margins brown, 

 the edges coarsely punctured with black ; the sides of the apical 

 segment, and the dorsal surface of the sexual organs distinctly 

 wrinkled, and irregularly punctured with black. Body beneath 



