SMITH ON HYMENOPTEEA OY ARTJ ISLANDS. 175 



shining, the posterior margins of the third and following segments 

 with a narrow bluish-white fascia ; the posterior tarsi slightly fuscous ; 

 the wings fusco-hyahne ; the ovipositor a little longer than the 

 abdomen. 

 Hab. Aru. 



3. Bracon nigripennis. B. thorace, pedibus anticis et intermediis, 

 femoribusque posticis ferrugineis ; tibiis tarsisque posticis et abdomine 

 nigris ; alis nigro-fuscis ; capite luteo-testaceo. 



Female. Length 9 lines. Head testaceous, the antennae black. Thorax, 

 anterior and intermediate legs, the posterior coxae, trochanters and 

 femora, the tegulse, extreme base of the wings, and the base of the 

 stigma ferruginous ; the thorax smooth and shining ; the wings brown- 

 black, with a small hyaline spot in the first submarginal cell. Abdo- 

 men longitudinally aciculate, a central carina at the base of the first 

 segment, the second segment with an oblique impressed line running 

 from the lateral angles of its basal margin, and meeting in the centre 

 of its posterior margin ; the margins of all the segments constricted ; 

 the ovipositor shorter than the abdomen. 



Hab. Aru. 



4. Bracon EXOLETus. B. niger ; capite, thorace, pedibus anterioribus 

 et intermediis ferrugineis ; alis subhyalinis. 



Female. Length 5 lines. Head, scape of the antennae, thorax, ante- 

 rior and intermediate legs, ferruginous ; flagellum and tips of the 

 mandibles black. Thorax smooth and shining ; wings fusco-hyaline, 

 the nervures dark brown ; the posterior legs fusco-ferruginous. Ab- 

 domen rugose and subopake ; the basal segment black in the middle, 

 with the base and lateral margins ferruginous, the sides deeply chan- 

 neled; the second segment with an arrow-headed shining space in 

 the middle of its base ; the ovipositor shorter than the abdomen. 



Hab. Aru. 



5. Bracon ABDOMiNALis. B. rufo-flavus; antennis fuscis ; alis sub- 

 hyalinis ; abdomine ovato. 



Female. Length 3 lines. Reddish yellow ; head and thorax smooth 

 and shining ; the head narrower than the thorax ; wings fusco- 

 hyaline ; abdomen ovate, broader than the thorax, the first and second 

 segments rugose, with deep sculptured impressions ; the second seg- 

 ment has an ovate shining space in the middle at its basal margin ; 

 the third segment is deeply depressed and sculptured at the base, 

 leaving a transverse arched space at its apex, the width of the entire 

 segment ; the following segments have their margins very deeply 

 depressed. 



Hab. Aru. 



6. Bracon nitidus. jB. niger ; capite, thorace pedibusque et abdo- 

 minis segmento primo ferrugineis, totis nitidissimis. 



Female. Length 4 lines. Ferruginous, with the flagellum, second and 



LINX. PROC. ZOOLOGY. 12 



