of New Species of Exotic Hymenoptera. 225 



impression to receive the antennae ; face wide. Abdomen de- 

 pressed, oval, affixed on the hind upper extremity of the meta- 

 thorax, which is suddenly truncate behind. Prothorax forming 

 a long neck. Antennae filiform, shorter than the body, first 

 joint long and cylindric, second short and globular, and eleven 

 (twelve ?) joints, slightly diminishing in length. Fore wings with 

 a rather large radial cell not extending to the tip of the wings ; 

 three cubital cells, the outer one very long ; two discoidal closed, 

 and the third very long, extending to the tip of the wing ; hence 

 there is only one recurrent vein, and a single posterior mar- 

 ginal cell. Legs rather long ; ungues with a strong tooth at the 

 base. 



Capilonius b'fasciatus, Brulle, op. cit. p. 545. 



Nigro rufo et flavo varius, alis flavis, anterioribus fasciis 2 pos- 



terioribus, fascia unica fuscis, metathorace rugoso. 

 Long. 0-010. 

 Habitat Pard, Brazil. 



Upper side of head and antennae black ; lower part of head 

 and mouth yellow. Prothorax yellowish red. Metathorax [me- 

 sothorax ?] yellow. Upper side of the metathorax blackish- 

 brown, with the scutellar region yellowish red ; the sides of the 

 mesothorax and of the breast black ; the three basal segments of 

 the abdomen bright red, the remainder black ; fore legs reddish- 

 yellow, hind legs black. Abdomen depressed and shining, first 

 segment nearly flat and triangular, rather longer than broad. 



Genus Megalyra. 



Megalyra rufipes, Erichson, Beitrag zur Insecten Fauna von 

 Vandiemen's Land, p. 258. 



" Nigra, pedibus rufis, alis anticis fascia fusca. 

 Long. corp. 5| ; acul. 18 lin. 



"Nigra. Antennae tenues, 14-articulatae, articulo lmo crassi- 

 usculo nigrae, articulo tertio infra ferrugineo. Caput puncta- 

 tissimum, albido-puberulum. Thorax punctatissimus, albido- 

 puberulus, prothorace vittis duabus, mesothorace plaga media 

 obsoletis sanguineis. Abdomen laeve, parcius albido-puberu- 

 lum, aculeus corpore plus triplo longior. Pedes albo-pube- 

 ruli, rufi, coxis trochanteribusque nigris. Alae hyalinae, 

 apice infuscatae, anticae fascia transversali fusca." 



This species seems to me scarcely to differ from M. fctscii- 

 pennis. 



VOL. I. N. S. PART VII. DEC. 1851. Q 



