POMPILUS. 



143 



clvpeus widely emarginate. The metathorax concavly truncate ; 

 wings subhyaline, and, with their apex, dark fuscous beyond the 

 submarginal cells ; the nervures black ; the base of the posterior 

 femora black. The base of the segments of the abdomen with 

 dense silvery pile. 



Hab. The Gambia. 



10. Pompilus proximatus. 



Female. Length 7 J lines. — Black, with the two basal segments of 

 the abdomen ferruginous, the wings dark fuscous. The head and 

 thorax with a purple bloom ; the clypeus flat, smooth, and shining, 

 and having a few fine scattered punctures ; truncate anteriorly, 

 with the angles rounded'; its margin in front and laterally slightly 

 raised ; the metathorax obtuse, and, as well as the prothorax, 

 with a central longitudinal depression ; the third submarginal cell 

 much narrowed towards the marginal. The second segment of the 

 abdomen with the apical margin fuscous. 



Male. Smaller, more slender, and has the ferruginous colouring 

 of the abdomen extending partly on the third segment ; the thorax 

 has a similar purple bloom to that on the female. 



Hab. Algeria. 



This species greatly resembles Pompilus fuscus, but the different 

 form of the naked clypeus, and the central longitudinal depression, 

 both on the pro- and metathorax, characterize more than a variety. 



11. Pompilus viridicatus. 



Female. Length 9 lines. — Black, and covered with an olive-green 

 pile; wings dark brown, with a violet iridescence. The clypeus 

 slightly emarginate ; the antennae black. The prothorax short, its 

 posterior margin angulated; the third submarginal cell shorter 

 than the second, and much narrower towards the marginal ; the 

 metathorax smooth and obtusely truncated, and with a fine narrow 

 channel, not extending to the base nor the apex ; the legs with fine 

 slender spines, not thickly set. The abdomen with purple shades 

 in different lights. 



Hab. West Africa. 



12. Pompilus insidiosus. 



Female. Length 5| lines. — Black, with a thin grey pile ; the wings 

 hyaline, with a dark fuscous border beyond the third submarginal 

 cell. The face with a fine short grey pubescence ; the mandibles 

 ferruginous towards their apex, their tips black; the anterior 

 margin of the clypeus rounded. The hinder margin of the pro- 

 thorax subangulated ; the metathorax smooth, and rounded behind ; 



