HYMENOPTERA — SCOLIID. 209 
Another species (P. fuscus), whose proceedings I observed at 
Coombe, is most persevering and undaunted in its endeavours to 
carry its prey to its place of destination. This consisted of a large 
dead ant, which it endeavoured to drag up a perpendicular bank, and 
ultimately succeeded after many falls. The armature of the fore and 
hind legs, as first noticed by Van der Linden (Obs. Hym. Fouiss. 
vol.i. p. 35.), affords good characters for the division of this genus 
into minor groups, and has been employed by Schiodte to separate 
the Danish species into five genera (as indicated in my generic synop- 
sis), including Ceropales (jig. 83. 14. C. maculata ?, fig. 83. 15. an- 
_terior tarsus @, fig. 83. 16. posterior tibia ? ), which has perfectly 
simple legs, and which St. Fargeau regards, with apparent justice, as 
a parasite, having often observed the females of this genus enter 
backwards into the nests of some of the real fossorial species, which 
he considered a certain proof that their object was to deposit their 
own eggs therein. (Enc. Meth. tom. x. p. 183.) In some unpublished 
drawings of Abbott, the Georgian entomologist, I have observed repre- 
sentations of the attacks of a species of Pompilus upon a spider. 
Amongst the exotic genera of this family may especially be men- 
tioned Trigonopsis Perty, distinguished by its very long collar and 
flat triangular head, from Brazil; Pronzus Laér., having immense 
sickle-shaped mandibles ; and Planiceps Laér., having the collar long 
and square, and the head flat. 
The family Scorirp#* (including the Sapygides) is distinguished 
by having the collar laterally extending to the base of the wings 

* Bisriocr. REFER. TO THE SCOLIIDZ. 
Latreille. Descr. n. sp. Tiphia, in Magas. Eneyclopéd. tom. i. p. 25. 
Dufour. Recherch, Anatomiques sur les Scolies, in Nouv. Bull. Soc. Philoma 
1818. 
Klug. Berechtigung von Scolia und Tiphia, in Weber and Mohr’s Beitrage zur 
Naturk, 1805-1810. — Ditto, in Ehrenberg. Symb. Phys. 
De Romand, in Ann. Soc. Ent. de France, 1835, p. 653. (Epomidiopteron 9.) — 
Ditto, in Trans. Entomol. Soc. London, vol. ii. — Ditto, ( ¢ ). 
Guérin, Prodrome Monogr. Myzine, Extr. Dict. Pittoresq. d’Hist. Nat. tom. v. 
p- 575. June 1837. — Ditto, Synops. Monogr. Plesia, in Réyue Zoologique, 
tom. i. p. 56. — Ditto, in Voy. de la Coquille. 
VOL. II. P 
