176 SMITH ON HYMENOPTERA OF ARU ISLANDS. 



following segments shining black ; the thorax smooth and shining, 

 with the scutellum prominent; the wings subhyaline, their apical 

 margins clouded, their extreme base yellowish, the nervures dark 

 brown, the stigma black. Abdomen : the second and third segments 

 with deeply impressed oblique lines on each side, and the basal mar- 

 gins of the following segments depressed. 

 Hab. Am. 



7. Bracon pallifrons. B. niger; thorace pedibusque anticis et 

 intermediis ferrugineis ; alis fuscis. 



Female. Length 6 lines. Head obscure, testaceous yellow ; the eyes 

 brown; the antennae black. Thorax and the anterior and intermediate 

 legs ferruginous ; an ovate black spot on the metathorax ; and the 

 posterior legs black, with the articulations obscurely ferruginous ; 

 wings dark fuscous, with the nervures and stigma black, the base of 

 the latter yellowish, and a hyaline streak beneath it, which crosses 

 the first submarginal cell. Abdomen black and shining; the first 

 segment with some coarse striae at the apex ; the second with a central 

 forked carina and an oblique one on each side running inwards to 

 the apex of the segment ; between the carinas are a number of deep 

 grooves ; the lateral margins of the three basal segments carinated ; 

 the third segment has a row of short deep striae at its base ; the ovi- 

 positor longer than the body. 



Hab. Aru. 



8. Bracon intrudens. JB. niger ; thorace, pedibus anticis inter- 

 mediisque et abdominis segmento basali ferrugineis ; alis hyalinis. 



Female. Length 5 lines. Black ; the thorax, anterior and intermediate 

 legs, the articulations of the posterior pair, and the base of the abdo- 

 men ferruginous, entirely smooth and shining ; the wings subhyaline, 

 the nervures fusco-ferruginous, an irregular fuscous stain at the base 

 of the first submarginal cell, extending beyond it. Abdomen : the 

 basal segment margined at the sides ; the second segment with an 

 oblique deeply impressed line running inwards, not quite meeting or 

 extending to the apical margin. 



Hab. Aru. 



G-en. Agathis, Latr. 



1. Agathis fumipennis. A. ferruginea; capite, abdominis apice 

 tarsisque posticis nigris ; alis obscure fuscis. 



Female. Length 4 lines. Reddish-yellow; the head, apical joint of 

 the intermediate tarsi, the apex of the posterior tibiae, and the third 

 and following segments of the abdomen black ; the thorax and legs 

 with a thin, short, pale fulvous pubescence ; the head and abdomen 

 smooth and shining ; the head produced before the eyes into a kind 

 of beak, rufo-piceous anteriorly. Thorax narrowed before the wings, 

 which are dark fuscous, with a hyaline irregular mark below the 



