254 Mr. W. L. Distant on Neotropical PentatomiJse. 



tinctly sinuate, the lateral angles a little prominent; scu- 

 tellum with the apical area broader and the apex more 

 truncate. 



Type, P. sanguineo signal a. Spin. 



The structure of the scutellum is the most distinguishing 

 character of this Southern Neotropical genus from the 

 Palsearctic genus JaUa. It is also quite distinct from the 

 Australian genus Jalloides^ in which Schouteden, following 

 Stal, but with doubt and hesitation^ placed the typical species. 



Parajalla sanguineo si gnat a. 



Jalla sanqtdneo-siynata, Spiu. iu Gay, Hist, de Chile, vii. p. 120 (18o2) ; 



Sign. Ann. Soc. Ent. Fr. (4) iii. p. 544 (1863). 

 Jalloides? sangnineonotata, Scbout. in Wytsm. Gen. Ins. fasc. Iii. p. 42 



(1907). 



Ilab. Patagonia; V. del LagoXanco (C'AwZim/, Brit. Mus.). 

 The British Museum now possesses four examples of this 

 rare species. 



PsEUDOBEB^us, gen. nov. 



Head about as long or only slightly longer than breadth 

 at base, the lateral lobes distinctly longer than the central 

 lobe, passing but not meeting beyond it, the apex being thus 

 distinctly cleft ; autenuse five-jointed, first joint not reaching 

 apex of head, second very slightly shorter than third, fourth 

 and fifth longest, subequal in length ; pronotum more than 

 twice broader between the lateral angles than long, the 

 lateral angles longly broadly produced, the lateral margins 

 serrate, finely near apex, longly towards the produced angles, 

 anterior margin moderately concave, posterior margin trun- 

 cate in front of scutellum, the lateral margins before the 

 produced angles almost oblique and the disk from the same 

 area sharply obliquely depressed to head ; scutellum about 

 as long as broad at base, the lateral margins moderately 

 oblique for about half their length from base and then more 

 longitudinally narrowing to apex, which is subangulate ; 

 coriura slightly longer than pronotum, the inner apical angle 

 rounded ; membrane passing the abdominal apex, the veins 

 mostly longitudinal ; rostrum reaching the posterior coxae, 

 first joint reaching base of head ; basal abdominal spine 

 reaching the anterior margins of the posterior cox?e ; tarsal 

 joints two in number. 



Allied to Bebaus, Dall, in general appearance and struc- 

 ture of head and lateral pronotal angles ; but lateral pronotal 

 margins strongly serrate, ventral spine only slightly passing 

 posterior coxcC, joints of antennee different, &c. 



