VI. POMPILUS, 61 
pubescence with which this insect is so splendidly covered 
sufficiently distinguishes it from every other British Pompi- 
lus ; in general habit it most closely approaches to the P. 
viaticus. I have captured it but once, somewhere in the 
vicinity of London. 
Sp. 12. viaticus. Lin. 
ater, pubescens, alis fuscis, apice nigris, abdomine antice coccineo, 
cingulis nigris  Q. 
length 4—7 lines. 
Fab. E. S. Supp. 246. 4; Piez. 191. 12; Panz. 65.16; Illig. 2. 96. 
814; Ency. Méth. 10. 179.1; V.d. Lind. pt. 1. 72. 
Sphex viatica. Lin. F. 8.1651; S.N. 1. 943.15; Fab. E.S. 2. 210. 
47; Rossi, F. Et. 2. 62. 814. 
—— rufo-fasciato. De Geer, Ap. Retz. 65. 247; De Geer, 2. 822. 
Ply 28. £762 
Pompilus fuscus. Latr. H. 15. 280. 1. 
Atrous, opaque: head, with the cheeks and exterior of the 
mandibles, covered with long hair, the latter rufescent in their 
centre; the labrum transverse, exserted. 
The thorax has the collar covered with long hair; the meta- 
thorax truncated posteriorly and with a slight central longitudinal 
impression at its base; the wings obscure, with a broad black 
band at their edge extending inwards to the marginal and sub- 
marginal cells,—the third submarginal sometimes triangular and 
sometimes petiolated; the legs with the anterior tarsi ciliated, 
and the intermediate and posterior tibize having a double row of 
spines, which extend also along the first joint of the tarsi. 
The abdomen, with the first, second and third segments coc- 
cineous, the first having a piceous margin, and the second and 
third a black one, making an angle which points inwards at the 
centre ; the apical segments hirsute at their extremity 9. 
The ¢ agrees precisely with the exception of the usual ¢ cha- 
racteristics of a silvery face, a sericeous pubescence about the 
metathorax and coxz, a greater length and narrowness of abdo- 
