190 MODERN CLASSIFICATION OF INSECTS. 
Hemiptera, Homoptera, Lepidoptera, Hymenoptera, Diptera, and 
spiders, contributing to the support of this tribe : and insects in the 
larva, pupa, and imago states are employed for this purpose. The 
number of individuals enclosed in each cell varies according to the 
size of the species, and of the progeny for whose support it is 
buried: thus, whilst Ammophila subulosa buries a single Lepidopterous 
larva, as many as fifty or sixty Aphides are shut up in a single cell 
by other species. 
The Insectivora or Fossores are divisible into the six following 
families: 1. or 9. Crabronide; 2. or 10. Larride; 3. or 11. Bem- 
becide; 4. or 12. Sphegide ; 5. or 13. Scoliidae; and 6. or 14. Mu- 
tillide. The latter family, although placed by Latreille with the 
ants in his section Heterogyna, naturally enters the same group as 
Scolia, Tiphia, &c.; the female Mutilla being evidently apterous 
Fossores, rather than solitary ants: indeed, the supposed males of 
one of the Mutillideous genera Methoca have until very recently been 
regarded as a distinct genus belonging to the Scoliida. In some of 
the works of Latreille three other families are added, namely, the 
Nyssonii, separated from the Crabronidz, the Pompilide from the 
Sphegide, and the Sapygid from the Scoliide. In regarding them 
merely as subfamilies, I adopt the views of Latreille’s Genera 
Crustaceorum, &c. 

The family Crasronip& * Leach, with which I also unite the Nys- 
sonide Leach, have the head generally large (fig. 81. 1. Crabro 

* Brettocr. Rerer. tro THE CRABRONIDZ. 
Scheven, in Der Naturforscher. St. 20 (palmated species of Crabro. ) 
Lepelletier de Saint Fargeuu. Mém. g. Gorytes, in Ann. Soc. Ent. de France, tom. i. 
— Ditto, together with M. Brullé, Monogr. g. Crabro, in Ann. Soe. Ent. de 
France, 1834. 
Latreille. Note of Habits of Philanthus apivorus. Bull. Soc. Philomat. tom. ii., 
1799, and in the Hist. Wat. Fourmis. 
Thunberg. Note on Trypoxylon figulus in Vetensk. Acad. nya Handl., 1808. — 
Ditto, Monographia Philanthi, Nov. Act. Upsal, vol. vii. 
Brullé, in Ann. Soc. Ent. de France, tom. ii., 1833 (n. g. Nephridia.) 
Shuckard, in Trans. Ent. Soc. vol. i. and ii. (ut supra.) 
Schiiffer. (Crabro cribrarius) Abhandl. von Insect. No. 11. 
Sehreber, in Der Naturforscher, 15 St. and 20 St. 
Kettel, in Isis, 1828 (Crabro parisinus. ) 
Fabricius, Spinola, Panzer, Jurine, Rossi, Brullé (Morea), Savigny, (Egypte). 
