HYMENOPTERA. 279 



3. LlOGASTRA ATRA. B.M. 



Male. Length 8 lines. Black, the second joint of the fla- 

 gellum rufo-testaceous ; the sides of the face covered with 

 fuscous pubescence; the wings fusco-hyaline ; the scutellurn 

 elevated, bituberculate ; the disk of the thorax covered with 

 short velvety pubescence. Abdomen naked above, except the 

 sides of the three apical segments, which are clothed with fusco- 

 ferruginous pubescence ; the abdomen has a slight blue tinge at 

 its base. 



Hab, Brazil (Para). (H. W. Bates.) 



Genus 33. EURYTIS, n. g. 

 (F. Smith's MSS.) 



The labial palpi four-jointed, the first joint more than twice 

 the length of the second, the two apical ones very minute ; the 

 maxillary palpi consisting of a single joint ; the ocelli placed in 

 a line on the vertex, the antennae filiform. The superior wings 

 having one marginal and three submarginal cells ; the former 

 equal in length to the three latter, the second slightly narrowed 

 towards the marginal, the third curved and of equal width ; the 

 two recurrent nervures uniting with the second and third trans- 

 verse cubital nervures ; the calcar of the intermediate tibiae elon- 

 gate, very stout and denticulate at its apex. Destitute of polli- 

 nigerous organs. 



1. EURYTIS FUNEREUS. B.M. 



Female. Length 7 lines. Black, entirely clothed with short 

 velvety pubescence ; wings of a purple-black. The calcar of the 

 intermediate tibiae elongate, bidentate at its apex ; the calcar is 

 rounded exteriorly and flattened beneath, the edges finely ser- 

 rated ; the calcaria on the posterior tibiae are also flattened 

 beneath and the edges serrated. Abdomen acute at its apex, 

 the pubescence having a gloss similar to velvet, of a somewhat 

 bluish tinge, the apical segment beneath having a central longi- 

 tudinal carina. 



Hob. Brazil (Santarem). (H. W. Bates.) 



Genus 34. MELISSA, n. g. 



(F. Smith's MSS.) 



The labium rather more than twice the length of the mentum, 

 which is rounded at the base and trifid at the apex ; the para- 

 glossae short, lanceolate ; the labial palpi four-jointed, the first 



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