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 scutellum 

 elevated, bituberculate ; the disk of the thorax covered wdth 

 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 intermechate 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. 



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



Genus 34. MELISSA, n. g. 



' (F, Smith's MS S.) 



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

 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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