HYMENOPTERA. 4/3 



17- Philanthus BASALIS. B.M. 



Female. Length 5h lines. — Black : the head and thorax closely 

 and rather finely punctured ; the punctures on the scutellum 

 distant ; the clypeus and anterior margins of the face, a line on 

 the inner orbit of the eyes, terminating at their emargination, 

 where they are narrowest, an oblique spot above the insertion of 

 each antenna, a short narrow line in front of the anterior ocellus, 

 two spots on the vertex, a line behind the eyes, and the mandi- 

 bles, yellow ; the latter black at their apex. Thorax : a narrow 

 line on the collar, a spot behind the tegulae, and the scutellum, 

 yellow ; the wings slightly coloured, a fuscous spot beyond the 

 marginal cell ; the femora ferruginous, beneath rufo-piceous ; 

 the tibiae black, the anterior and intermediate pairs yellow in 

 front, their tarsi yellow beneath ; a yellow spot at the tip of the 

 femora in front. Abdomen smooth and shining, the first seg- 

 ment ferruginous at the base, and having on each side an oblong 

 transverse macula ; the three following segments with a narrow 

 slightly interrupted yellow band on their apical margins ; be- 

 neath, the second and two following segments have on each side 

 a broad oblique stripe. 



Hab. Ceylon. 



18. Philanthus incertus. 



Trachypus incertus, Spin. Gay's Chili, vi. 336. 2. 

 Hab. Chih. 



19. Philanthus solivagus. 

 Philanthus solivagus, Say, Bost. Journ. i. 383. 

 Hab. N. America (Indiana). 



20. Philanthus barbatus. 



Male. Length 5 hues. — Black : closely and rather finely 

 punctured on the face ; the vertex shining, the punctures scat- 

 tered; the anterior ocellus placed in a fossulet; the clypeus, 

 anterior margin of the face, inner orbit of the eyes not quite so 

 high as their emargination, and a large ovate spot above the 

 antennae, yellow ; the face furnished with a long dark beard on 

 each side of the clypeus or its anterior margin. Thorax shining, 

 sparingly punctured ; a spot beneath the wings and the post- 

 scutellum yellow ; wings fulvo-hyaline, the nervures pale ferru- 

 ginous. Abdomen shining, the first segment with a few large 

 deep punctures, or foveae ; the second segment with similar punc- 

 turing; the third segment has a few punctures on its apical 



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