hymenoptera. 189 



4. Cryptocerus clypeatus. B.M. 



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

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

 Klug, Ent. Mon. 207. 6. 

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



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

 217. 5. pi. 21. f. 1?,2<?,5, 6?. 



Hah. Brazil (Sautarem). 



5. Cnyptocerus D'Orbignyanus. 



Cryptocerus D'Orbignyanus, Smith, Mo7i. Crypt. Trans. Ent. Soc. 

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



Hab. South America. < 



6. Cryptocerus quadrimaculatus. B.M. 



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

 Guer. Icon. Reg. Anim. 426. 



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

 12. pi. 19. f. 8 ? . 



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



7. Cryptocerus ouadriguttatus. 



Cryptocerus quadriguttatus, Guer. Icon. Rig. Anim. 425 ^ . 



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 Hnes. — 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 de])ression, and an abbreviated impressed line above it ; 

 the tips of the antennae ruto-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 



