SMITH ON HYMEKOPTERA OF ARU ISLANDS. 169 



finely striated transversely, and with two yellow stripes running 

 upwards halfway from the base, the posterior margin of the pectus, 

 tips of the coxae, the femora at their base and apex, the tibise and 

 tarsi beneath, ferruginous ; tips of the femora, and tibise above, yel- 

 lowish. Abdomen ferruginous, with the base of the second and fol- 

 lowing segments black ; the first and three following segments with a 

 yellow fascia on their apical margins; beneath, the two basal seg- 

 ments entirely ferruginous. 



Hab. Aru. 

 This species is closely allied to the P . fastidiosus of Saussure, and, 



notwithstanding the difi^erence in colouring, may possibly, I think, be 



an extreme variety of that species. 



5. PoLiSTES ELEGANS. P. ferrugiueus ; capite thoraeeque flavo variis ; 

 segmentis abdominis flavo marginatis. 



Female. Length 8 lines. Ferruginous ; the clypeus, mandibles, cheeks, 

 and the face, as high as the middle of the emargination of the eyes, 

 yellow. Thorax: the margins of the prothorax, two longitudinal 

 stripes on the mesothorax, the scutellum, postscutellum, and sides of 

 the metathorax broadly, yellow ; the legs beneath, the coxae and the 

 sides of the thorax spotted with yellow ; the intermediate and pos- 

 terior coxae spotted with ferruginous or fusco-ferruginous ; the meta- 

 thorax finely striated transversely ; the wings hyaline with the nervures 

 ferruginous. Abdomen : the first and three following segments with 

 yellow marginal fasciae, that on the fourth usually more or less obli- 

 terated. 



Hab. Aru; Key Island. 



X. 



Fam. EYANID^, Leach. . ^ ^. .J^li 



a^W 



if: 



Gen. FffiNTis, Fahr. , . 



1. FcENUS GRACILIS. F. nigcr, facie lateribusque thoracis argenteo 

 pilosis ; pedibus anticis et intermediis pallide -rufo-testaceis, tibiis 

 posticis basi tarsisque albis; abdomine subtus rufo-testaceo. 



Female. Length 6 lines. Black; sub-opake ; the face, sides of the 

 thorax and beneath with silvery pubescence ; the mandibles, palpi, 

 and scape in front rufo-testaceous. Thorax : the anterior and inter- 

 mediate legs rufo-testaceous, the femora having a darker stain above ; 

 the posterior legs black, with the base of the tibiae and the tarsi 

 white. Abdomen rufo-testaceous beneath; the ovipositor white at 

 its apex. .J/ 



Hab. Aru. C >DC?^^'^ 



Gen. Stenophasm¥s. --- 0\ 



Head globose; antennae longer than the body, and very slender and 

 setaceous ; the prothorax forming a slender neck ; the anterior wings 

 with one marginal and three submarginal cells ; the femom shghtly 



