POMPILUS. 205 



hairs. The basal nervure is interstitial, the anal nervure in the hind wings hardly so, 

 being received just in front of the cubital. Legs shortish, stout; the fore tarsi only- 

 ciliated beneath ; the tibial spines longish ; the long spur of the hind tibiae reaches to 

 the middle of the metatarsus. 



The amount of black on the abdomen varies and the wings vary also in tint, some 

 examples having the wings quite light at the base. The shape of the third cubital 

 cellule varies : it may be petiolate, subpetiolate, or triangular. 



52. Pompilus apiculatUS. (Tab. XL fig. 25, wing.) 

 Pompilus apiculatus, Smith, Cat. Hymen. Ins. iii. p. 157 1 ; Cresson, Trans. Am. Ent. Soc. i. 



p. 103 2 . 

 Pompilus coruscus, Smith, Descr. of New Species of Hymen, p. 155 (1879) 3 . 



Hab. Mexico, Presidio de Mazatlan (Forrer), Vera Cruz 1 ; Guatemala, San Gero- 

 nimo (Champion), Chinautla 4100 feet (Salvin 3 ). 



Head semiopaque, covered with a whitish pubescence, alutaceous ; eyes curved and 

 converging at the top, at the bottom almost parallel ; the ocelli in a triangle, the 

 hinder ones separated from each other by about the same distance they are from the 

 eyes ; clypeus short, broad, the sides rounded, the apex almost transverse. Antennae 

 as long as the thorax, the third joint distinctly longer than the fourth. Thorax 

 opaque ; a line along the apex of the pronotum and the sides of the median segment 

 densely covered with a silky pubescence. Pronotum subquadrate, not much narrowed 

 towards the head. Scutellum concave, not narrowed towards the apex, longer than 

 broad. The median segment depressed in the centre, the depression with a furrow in 

 the middle. Abdomen shorter than the head and thorax, shining, slightly pruinose ; 

 the pygidium semiopaque, shagreened towards the apex. Legs stout, of moderate 

 length, densely pruinose, the anterior pair having a plumbeous tinge ; the spurs short, 

 thick ; the long spur of the hinder tibiae reaching beyond the middle of the metatarsus. 

 Wings short ; the second cubital cellule longer than the third ; the first transverse 

 cubital cellule elbowed in the middle, the second straight, the third curving round so 

 as to join the second ; the first recurrent nervure is received in the apical third, the 

 second beyond the middle of the cellule. The apex of the abdomen may be blackish. 



Smith 3 described this species as P. coruscus, though he had long previously used 

 the same name for another species of Pompilus. 



53. Pompilus SUbargenteus. (Tab. XL figg. 26, head; 26 a, wing.) 

 Pompilus subargenteus, Cresson, Proc. Ent. Soc. Phil. iv. p. 129 * ; Trans. Am. Eat. Soc. i. p. 103 2 . 



Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). — Antilles, Cuba 1 2 . 



The Atoyac example (a male, 6 millim. in length) is, no doubt, referable to P. sub- 

 argenteus. It has the eyes converging beneath ; the hinder ocelli separated from each 



