314 HYMENOPTERA- 



4. PiSON REGALIS. PI. VIII. fig. 3. B.M. 



Pisort regalis, Smith, Trans. Ent. Soe. New Ser. ii. 34. t. 8. f. 9 $ . 

 Hab. North China (Ning-po-foo). 



5. PXSON XANTHOPUS. B.M. 



Nephridia xanthopiis, Brulle, Ann. Soc. Ent. Fr. ii. 403. 

 Pison xanthopus, Shuch. Trans. Ent. Soc. ii. 75. 2. 

 Pisou obscurus. Shuck. Trans. Ent. Soc. ii. 75. 3 (var.). 



Hab. Cape of Good Hope. 



6. Pison auratus. 



Pison auratus. Shuck. Trans. Ent. Soc. ii. 78. 4 $ . 

 Hab. Cape of Good Hope. (Type in Coll. F. Smith.) 



7- Pison argentatus. B.M. 



Pison (Pisonitus) argentatus, Shuck. Trans. Ent. Soc. ii.79. 9 $ . 

 Hab. The Mauritius. 



8. Pison marginatus. B.M. 



Female. Length 5 Unes. — Black : the head opake, the face 

 with silvery pubescence. The mesothorax and scutellum slightly 

 shining, closely punctured ; the metathorax obliquely rugose, 

 the central channel without a carina, the truncation transversely 

 rugose ; the wings subhyaliue, darkest towards their ajjical mar- 

 gins ; the nervures testaceous, the outer margin of the tegulse 

 pale, the costal nervure fuscous; the two recurrent nervures 

 uniting with the nervures of the petiolated second submarginal 

 cell. Abdomen thinly covered with cinereous pubescence, very 

 finely punctured, the apical margins of the segments pale testa- 

 ceous. 



Hab. Australia (Hunter River). 



9. Pison perplexus. B.M. 



Male. Length 55 lines. — Black : the face thinly covered with 

 silvery pubescence ; the mesothorax and scutellum very closely 

 and finely punctm-ed ; the metathorax rugose, indistinctly ob- 

 liquely so, the central channel with a carina which terminates a 

 little before the verge of the truncation, the latter transversely 

 coarsely sulcate, and having a central deeply impressed line ; the 

 wings hyaline, their apical margins with a fuscous border ; the 

 nervures testaceous, the costal nervure fuscous, the two reciu-rent 

 nervm'es received by the second submarginal cell distinctly within. 



