14 
FORMICID (including allied families). 
G. L. MAYR.—Die Formiciden der Vereinigten Staaten von Nordamerika. 
<Verh. zool.-bot. Ges. in Wien, 1886. 
MUTILLID ZA. 
CH. A. BLAKE.—Synopsis of the Mutillidee of North America. <Trans. 
Amer. Entom. Soce., Vol. III, 187071, pp. 217-265; Additions and 
Corrections, Vol. IV, 1872~73, pp. 71-76. 
Cu. A. BLAKE.—Catalogue of the Mutillidee of North America, with 
descriptions of new species. <Trans. Amer. Entom. Soc., Vol. 
VII, 1878~79, pp. 243-254. 
Cu. A. BLAKE.—Monograph of the Mutillide of North America. 
<Trans. Amer. Entom. Soc., Vol. XII, 1886, pp. 179-286. 
This monograph supersedes the synopsis by the same author. 
SCOLIID Ai. 
H. DE SAUSSURE & J. SICHEL.—Catalogus specierum generis Scolia, 
Geneve, 1864. 
SAPYGID A. 
KE. T. Cresson.—[Synoptie table of the North American species of 
Sapyga.| <Trans. Amer. Ent. Soc., Vol. VIII, 1880, pp. xx—xxi. 
POMPILID &. 
E. T. CRESSon.—Notes on the Pompilide of North America, with de- 
scriptions of new species. <Trans. Amer. Ent. Soc., Vol. I, 1867, 
pp. 85-150. 
SPHECID &. 
W. H. Parron.—Some characters useful in the study of Sphecide. 
<Proe. Bostou Soc. Nat. Hist., Vol. XX, 1880, pp. 378-385. 
Critical notes on genera and species. 
LARRIDZ. 
A. 8. PACKARD, JR.—Revision of the Fossorial Hymenoptera of North 
America. I. Crabronide and Nyssonide. <Proc, Entom. Soe. 
Phil., Vol. VI, 1866, pp. 89-114 and 353-444. 
This work includes revisions of the following families: Larride, Bembecide, 
Philanthide, Mimesid, Mellinide, Pemphredonide, and Crabronidx. 
W. H. Parron.—List of North American Larride. <Proc. Boston 
Soc. Nat. Hist., Vol. XX, 1880, pp. 385-397. 
Table of genera; list of and notes on species. 
BEMBECID &. 
A. S. PACKARD, Jr.—[See work cited under Larride. | 
OF. PaTton.—The American Bembecide: Tribe Stizini. <Bull. 
U.S. Geolog. and Geogr. Survey, Vol. V, No. 3, 1879, pp. 341-347. 
