HYMENOPTERA. 19 
Metanper, A. L., and Brurs, C. T.—New species of Gasteruption, 
Trigonalys, Parnopes, and Psammophila. < Biol. Bul., m1, pp. 
35-42, 1902. 
Table of Psammophila, Parnopes, and Trigonalys. 
Virreck, H. L.—The North American cuckoo wasps of the genus 
Parnopes. <Trans. Amer. Ent. Soc., xxx, pp. 245-250, 1904. 
FORMICID.E. 
Mayr, G. L.—Die Formiciden der Vereinigten Staaten von Nord- 
amerika. <Verh. k. k. zool.-bot. Ges. Wien, 1886, pp. 419-464. 
Emery, C.—Beitriige zur Kenntniss der nordamerikanischen Amei- 
senfauna. <Part I, Zool. Jahrb., Abth. f. Syst., vir, pp. 633- 
682, 1894. <Ibid., Part I, vim, pp. 257-360, 1895. 
Wueeter, W. M.—A revision of the North American ants of the 
genus Leptothorax Mayr. <Proc. Acad. Nat. Sci. Phila., 1903, 
pp. 215-260, pl. 1. 
The North American ants of the genus Stenamma. < Psyche, 
1903, pp. 164-168. 
The ants of Texas, New Mexico, and Arizona. <Bul. Amer. 
Mus. Nat. Hist., Pt. 1, xxiv, pp. 399-485, pls. 2, 1908. 
The American ants of the sub-genus Colobopsis. <Bul. Amer. 
Mus. Nat. Hist., xx, pp. 139-158, 1904. 
— An annotated list of the ants of New Jersey. <Bul. Amer. 
Mus. Nat. Hist., xx1, pp. 8371-408, 1905. 
An analytic key to the genera of the family Formicide for the 
identification of the workers. <Amer. Nat., xxxvi, pp. 707-725, 
1902. (Translated from Emery.) 
The North American ants of the genus Dolichoderus. <Bul. 
Amer. Mus. Nat. Hist., xx1, pp. 305-319, 1905. 
The North American ants of the genus Liometopum. < Bul. 
Amer. Mus. Nat. Hist., xx1, pp. 321-333, 1905. 
The fungus-growing ants of North America. <Bul. Amer. 
Mus. Nat. Hist., xxm1, pp. 669-808, pls. 5, 1907. 
revises our Attii. 
MUTILLIDE. 
Brake, C. A.—Synopsis of the Mutillide of North America. <Trans. 
Amer. Ent. Soc., 111, pp. 217-265, 1870-1871; Additions and Cor- 
rections, Iv, pp. 71-76, 1872-1873. 
Catalogue of the Mutillide of North America, with descrip- 
tions of new species. <Trans. Amer. Ent. Soc., vit, pp. 2438-254, 
1878-1879. 
