396 Mr. F. Smith on new Species of Mexican Pompilidae. 



the base, with its extreme base black, the apical margins of the seg- 

 ments very narrowly black or fuscous. 

 Hab. Orizaba (Mexico). In the National Collection. 



2. Pompilus torridus. 



P. ferruginous, alls snbhyalinis. 



Female. Length 6£ lines. Ferruginous, inclining to a tile-coloured 

 red ; the antenna) red at their base, becoming black towards their apex : 

 the face with a slight silky cinereous pile. Thorax : the metathorax, 

 coxa), and femora with a slight cinereous pile ; the wings fusco-hyaline, 

 with a faint violet iridescence ; the apical joints of the tarsi dusky ; the 

 abdomen smooth and shining. 



Hab. Mexico. In F. Smith's Collection. 



3. Pompilus regal is. 



P. formose purpureus, alis purpureis violaceo tinctis. 



Female. Length 10 lines. Purple-blue, changing in brilliancy in 

 different lights ; the clypeus and mandibles smooth, shining black ; 

 the antenna) black. The metathorax truncate, transversely grooved at 

 the verge of the truncation, and with some longitudinal divergent stria 1 

 at the base ; wings ample, dark purple, with brilliant shades of violet 

 in different lights. Abdomen slightly compressed, gradually tapering 

 from the base to the apex. 



Hab. Mexico. In F. Smith's Collection. 



4. Pompiliis flavopictus. 



P. niger, flavo striatals et guttatus. 



Female. Length 5 lines. Black ; the face yellow, with two longi- 

 tudinal black stripes running from the ocelli to the insertion of the 

 antenna), and a transverse waved black line at the base of the clypeus ; 

 a broad yellow stripe behind the eyes ; the scape of the antenna) yellow 

 in front ; the flagellum ferruginous, with the base and apex black ; the 

 mandibles yellow, with their tips black. Thorax : the posterior margin 

 of the prothorax, two longitudinal stripes on the mesothorax above, an 

 ovate spot on each side of the scutellum, the post-scutellum, a large 

 niacula on each side of the metathorax, and its posterior margin yellow ; 

 the sides of the thorax with several large yellow spots beneath the 

 wings ; the legs yellow, with longitudinal black stripes on the femora 

 and tibia) ; the wings subhyaline, with the anterior margin of the 

 superior pair fuscous. Abdomen : the base yellow, and the apical 

 margins of the segments with yellow bands. 



Hab. Mexico. In F. Smith's Collection. 



This species very closely resembles species of the parasitic genus 

 Ichneumon. 



