P. CAMERON. HYMENOPTERA. 197 



Thynnidae. 

 Thynnus, F. 



1. Thynnus papnanus sp. n. 



Alkmaar, New Guinea. November. 



Black, shining, densely covered with white pubescence, sparsely so on the back of the 

 abdomen, basai third of mandibles, 2 short, narrow curved lines above and between the 

 antennae, a narrowly interrupted line on the top of the basai slope of the pronotum, the 

 apical third of the tegulae, the greater part of the post-scutellum, an oblique oval spot in the 

 middle of metapleurae, longish narrow lines on the 2nd to 4" 1 abdominal segments, extending 

 from near the middle to the outer sides, where the lines are curved and dilated and 2 shorter, 

 narrower lines, not dilated, on the 5*, pallid yellow. The calcaria and tarsal spines white. 

 Wings hyaline, distinctly tinged with violaceous, the nervures black; the stump of a nervure 

 on the ist transverse cubital reaches near to the base of the stigma and issues from below 

 the middle; the ist abscissa of the radius is very short, the 2° d is one fourth longer than 

 the 3 rd ; the i 5t récurrent nervure is received near the base of the apical fourth of the cellule, 

 the 2nd nearer the base of the 3 r d. cf. 



Length 1 5 mm. 



Head and thorax closely, almost uniformly, distinctly punctured, the basai slope of the 

 pronotum smooth and shining, the metanotum less strongly punctured than the mesonotum 

 or scutellum. Parapsidal furrows distinct, extending from the base to the apex where it becomes 

 stronger; there is a narrower, but distinct furrow along the sides; it is a little curved and 

 narrowed at the base ; there is a smooth, shining, impressed line down the middle of the 

 scutellum. There is a smooth, irregular line down the centre of the basai halfof the metanotum. 

 Abdomen smooth and shining, the basai slope of the i s t segment and the apical two punctured. 

 The apical process a little longer than it is wide at the base; it becomes gradually narrowed 

 to the middle; the terminal part is of equal width ; the latéral basai teeth are curved and 

 become gradually narrowed to a fine point; they are about one fourth of the total length. 

 The ventral surface is strongly punctured ; the last is opaque and is much more closely and finely 

 punctured; a smooth, impressed line leads down the centre to the terminal spine. Apex ofclypeus 

 transverse, smooth and shining; the sides roundly narrowed to it. Malar space almost obsolète. 



The form of the dorsal abdominal lines varies ; there may be an oblique, white qua- 

 drangular mark on the base of the mesopleurae. The tibiae are densely covered with depressed 

 silvery pubescence. 



Aelurus, Klug. 



1. JElurus atratus sp. n. 



Bivak Island, New Guinea. 

 Black, shining, smooth, densely covered with white pubescence, sparsely so on the 

 front, vertex and basai segments of the abdomen, very long and curved on the outer side of 

 the occiput and the cheeks ; the white pile on the tibiae and tarsi dense, depressed, the spurs 

 white; wings hyaline, the nervures and stigma black, a fuscous cloud filling the basai half of 

 radial cellule, the ist cubital between the „stump" of a nervure and the stigma, the 2°<1 and 

 yà cubital cellules, the 2nd discoidal cellule and the part beyond it to near the 2^ récurrent 

 Nova Guinea. IX. Zoologie. 26 



