4-6 Cameron, Hymenoptera O^ientalia. 



more strongly and closely punctured ; on the apex of the 

 third segment in the middle are two small, yellow marks ; 

 on the fourth segment in the centre is a much larger mark, 

 transverse at the apex, contracted in the middle at the 

 the base and with the sides rounded ; on the apex of the 

 last segment is a larger yellow mark rounded at the base, 

 the apex roundly projecting in the middle. Beneath, the 

 basal segment is red ; the apex of the second, yellow. 



VESPID^. 



I C ARIA JUCUNDA, sp, nov. 



Long. 15 mm. (worker). 



Hab. New Guinea {Cuthbertson). 



Agrees closely in size, form and coloration with 

 /. ferruginea ; but may be known from it by the 

 scutellum and post-scutellum being furrowed down the 

 centre ; by the middle of the median segment being much 

 more strongly and broadly transversely striated, by the 

 petiole being longer, by its narrowed basal half being 

 narrower compared with the apical and more distinctly 

 separated from it ; by the yellow band on the second 

 abdominal segment being much narrower and by the 

 wings being much lighter in tint, their apex being only 

 lightly infuscated. 



Several species of Icaria are known from New 

 Guinea and the neighbouring Islands ; but the present 

 species does not agree with any of them. Smith's 

 catalogue {Proc. Linn. Soc. {ZooL), 1869) is not trustworthy. 

 In Icaria there are several noteworthy omissions ; e.g.^ I. 

 festina Sm., /. bicolor Sm. {Proc. Linn. Soc. {ZooL), iS64,p. 

 90), from New Guinea, and /. australis Sauss , from Dorey. 



Rufo-ferruginous ; the apex of the clypeus all round, 

 the base of the mandibles broadly, the edge of the thorax 

 all round in front, scutellum, post-scutellum, two mode- 

 rately large, oblique marks on the apex of the median 



