196 P. CAMERON. HYMENOPTERA. 



of Smith and with the longer and better one of André, /. c. The 2 keels in the middle of 

 the metanotum converge towards the middle, then run parallel towards the top of the apical 

 slope, where they unité roundly. The ventral keel is broadly, shallowly curved. The hyaline 

 space at the base of the wings fills about two-thirds of the space between the base and the 

 transverse médian nervure. The mesonotal furrows commence at the apex of the basai third; 

 are deep and clearly defined. The 2°d transverse cubital nervure is roundly, angularly bent 

 outwardly before the middle. 



Scoliidae. 



Discolia Sauss. 



1. Discolia nigerrima Smith. 



Journ. Linn. Soc. IV, 116; Saussure, Cat. Gen. Sp. Scolia, 105, 95. 

 Bivak Island, New Guinea, October. 



Two females and one maie. The latter is 18 mm. in length and is more slenderly 

 built than the Q, which is from 20 — 22 mm. long, as against 27 the length given by SAUSSURE /. c. 

 The spécimen I refer to nigerrima (which was described from Dorey, New Guinea) is much 

 rubbed, both as regards the hair and the puncturation. The furrows on the metanotum are 

 roundly curved and converge slightly, but distinctly towards the apex; there is a distinct 

 longish tubercle in the centre of the top of the basai slope of the i st abdominal segment; 

 from it towards the base it has a straight oblique slope. 



2. Discolia Lorentzi sp. n. 



Bivak Island, January. 



Black, shining, with slight blue and violaceous tints, densely covered with black hair 

 ail over; the centre of the front broadly except on the top, a curved line of punctures across 

 the centre above the middle, a smooth line down the middle and an oblique one leading 

 down to each antenna. Thorax above, except the metanotum at the base, closely distinctly 

 punctured, the mesonotum more strongly than the rest, the apex of the mesopleurae smooth ; 

 the base of abdomen broadly rounded, not tuberculate. Spurs black. Wings fuscous violaceous, 

 with brassy tints on the basai half. Metanotal furrows hardly curved, not converging towards 

 the apex. Q. 



Length 22 mm. 



Very similar to D. nigerrima, which may be known from it by the tuberculated 

 ist abdominal segment, by the much less strongly punctured, almost smooth, head and thorax, 

 and by the uniformly deep violaceous wings. 



3. Discolia cuit a Sm. 



Journ. Linn. Soc. IV, 117; Saussure, Cat. Sp. Gen. Scolia, 122, 123; Cameron, Nova Guinea, 

 Resuit, de l'Expéd. Scient. Néerl. à la Nouv. Guinée, Vol. V 51. 



Lorentz River, New Guinea. September. 



