HYMENOPTERA. 189 



4. CRYPTOCERUS CLYPEATUS. B.M. 



Cryptocerus clypeatus, Fabr. Syst. Piez. 420. 3 $ . 

 Perty, Del. An. Art. 136. t. 27. f. 4. 

 King, Ent. Mon. 207. 6. 

 Guer. Icon. Reg. Anim. 426. 6. 



Smith, Mon. Crypt. Trans. Ent. Soc. Lond. 2nd ser. ii. 

 217. 5. pl.21.f.l?,2<?,5,6$. 



Hab. Brazil (Santarem). 



5. (JKYPTOCERUS D'ORBIGN YANUS. 



Cryptocerus D'Orbignyanus, Smith, Mon. Crypt. Trans. Ent. Soc. 

 Lond. 2nd ser. ii. 218. 11. pi. 19. f. 5? . 



Hab. South America. 



6. CRYPTOCERUS QUADRIMACULATUS. B.M. 



Cryptocerus quadrimaculatus, King, Ent. Mon. 215. 10 $ . 

 Guer. Icon. Reg. Anim. 426. 



Smith, Mon. Crypt. Trans. Ent. Soc. Lond. 2nd ser. ii. 219. 

 12.pl. 19. f. 8?. 



Hab. Brazil (Villa Nova, Amazons). (Coll. H. W. Bates.) 



7. CRYPTOCERUS QUADRIGUTTATUS. 



Cryptocerus quadriguttatus, Gutr. Icon. Reg. Anim. 425 <J . 



Smith, Mon. Crypt. Trans. Ent. Soc. Lond. 2nd ser. ii. 217. 7. 

 Hab. Columbia; Bolivia. 



8. CRYPTOCERUS ARGENTATUS. B.M. 



Cryptocerus argentatus, Smith, Mon. Crypt. Trans. Ent. Soc. 



Lond. 2nd ser. ii. 218. 10. pi. 19. f . 7 ? . 

 Hab. Columbia; Mexico. 



9. CRYPTOCERUS ANGULATUS. B.M. 



Worker. Length 4 lines. Black : shining and finely punc- 

 tured; head convex above, margined at the sides, truncate 

 behind ; the clypeus emarginate, above which is an opake trian- 

 gular depression, and an abbreviated impressed line above it ; 

 the tips of the antennae rufo-piceous. Thorax : the prothorax 

 as broad as the head ; the anterior margin arched, margined at 

 the sides, and abruptly narrowed and depressed behind; the 

 mesothorax with its lateral angles produced into flattened teeth 

 or spines rounded at their apex ; the metathorax transverse, nar- 

 rowed at the base and notched at the sidss, forming two blunt 



