B. CAMERON. HYMENOPTERA. 203 



ICHNEUMONIDAE. 



Pimplinae. 

 Rhyssa, Grav. 



1. Rhyssa fasciata Smith. 



Journ. Linn. Soc. 1859, 174. = i?iaculifiennis. Sm. tion Sm. 

 Bivak Island, January. 



This Aru species is probably représentée! by 3 examples. 



In size they vary from 18 to 24 m.m. The pleurae are largely tinged with yellovv; 

 the apical segments of the abdomen are infuscated. The cloud in the wings commences at 

 the base of the apical third of the stigma and extends slightly beyond it, and stretches across 

 to the extrême base of the areolet; it is contracted beyond the middle, the upper part 

 being wider and longer than the lower; the areolet is oblique, distinctly appendiculated, the 

 pedicle two-thirds of the length of the posterior branches; the récurrent nervure is received 

 at the apex, almost interstitial ; the disco-cubital nervure is broken by a stump before the 

 middle; the transverse médian nervure is received very shortly beyond the transverse basai. 



Epirhyssa, Cresson. 

 1. Epirhyssa maculismtis sp. n. 

 Bivak Island, January. 



Black, the face except for a longish oval line, narrowest above, in the centre of the 

 upper half, the lower three-fourths of the outer orbits, the line narrowed above, malar space, 

 palpi, almost the apical two-thirds of the scutellum, a line round the metanotum, the transverse 

 upper part narrower than the latéral, narrowly incised in the middle above, tubercles, a longi- 

 tudinal short line in the middle of the mesopleurae near the sternum, and gradually narrowed 

 from the base to the apex above, continuous lines on the apices of the basai 3 abdominal 

 segments and discontinguous ones on the following 2, yellow; the 4 front legs yellow, the 

 coxae of a brighter yellow, the rest tinged with rufous, their tarsi black, the tibiae black 

 behind, the middle more so than the anterior, the posterior black, the basai joint of the 

 trochanters, the femora, except at the base above and at the apex ail round, and the under- 

 side and base and apex ail round, yellow; as are also the calcaria. Wings hyaline, iridescent, 

 the stigma and nervures black, a fuscous violaceous cloud commences shortly beyond the 

 transverse cubital and récurrent nervures but not extending quite to the apex Q. 

 Length 20 mm., terebra 45. 



Smooth except for the usual transverse striae on the mesonotum and scutellum, the 

 . striae not extending to the basai slope of the mesonotum. Clypeus with a broadly oval 

 dépression in the middle, its centre slightly raised. Pleural furrows crenulated, the mesopleurae 

 closely finely, irregularly striated except above, and at the apex, the smooth apical part 

 widest above. The récurrent nervure is broadly roundly curved outwardly and is received 

 shortly beyond the transverse cubital. 



