42 Mr. G. Meade- Waldo on 



dinally, and two transverse curved lines above them, meso- 

 pleurse, outer margin of tegulse, two spots on scutellum, 

 postscutellum, median segment (except for a black mark in 

 shape of a Maltese cross), petiole with a pair of short yellow 

 lines on each side at base and a pair about centre, a trans- 

 verse band at apex, yellow. Whole of second abdominal 

 segment (with exception of base, a minute black spot on 

 dorsal area, and narrow transverse band on posterior mar- 

 gin) yellow. Segments 3, 4, 5 black, with subapical margins 

 yellow, interrupted narrowly above and broadly below ; 

 segment 6 with a yellow spot on each side above. Anterior 

 tibiae yellow above. 



Length 24 mm. 



Hab. Nicobar Islands ; 3 S • 



Probably a geographical race of Eumenes arcuata, Fabr., 

 as there does not appear to be any structural difference 

 between the two species. The insect would come next to 

 E. arcuata in Bingham's key ( f Fauna Brit. India/ Hymeno- 

 ptera, vol. i. p. 335). The second abdominal segment is 

 most conspicuously marked with yellow, and renders identi- 

 fication possible at a glance. 



Eumenes ovalauensis, Sauss. 



Belonogaster bidentata, Kirby, Ann. & Mag. Nat. Hist. (5) xiii. p. 410 

 (1884) (Fiji). 



Described as a female, is a male of Eumenes ovalauensis, 

 Sauss. The genus Belonogaster appears to be confined to 

 Africa, Madagascar, and Japan. 



Eumenes waltoni, sp. n. 



$ . Black ; a narrow line behind the eyes, pronotum in 

 front, postscutellum, apical margin of petiole above, con- 

 spicuous elongate oval mark on each side of second abdominal 

 segment, a broad band on apical margin of second abdominal 

 segment regular above, uneven on the ventral surface, tibiae 

 and tarsi yellow. Apex of mandibles and flagellum of 

 antennae ferrugineous beneath. 



Clypeus subtriangular, truncate, somewhat depressed at 

 the apex, broadest part of thorax considerably broader than 

 vertex, median segment rounded posteriorly, slightly de- 

 pressed. Petiole of abdomen short and fairly stout, second 

 abdominal segment about as broad as thorax at the tegulse. 



Punctured : vertex of the head, thorax, median segment, 



