316 ENTOMOLOGICAL NEWS [Dec., '22 



Ixxxii, 99-116. Kieffer, J. J. Causeries sur 1'abeille. (Mem. Ac. 

 Nat. Metz, 1921, 113-233.) Peacock, A. D. Observations on the 

 biology of sawflies. 9, 1922, 227-31. Plath, O. E. A unique method 

 of defense of Bremus fervidus. 5, xxix, 180-7. Robertson, C. 

 Synopsis of Panurgidae. 5, xxix, 159-73. Stumper, R. L'influence 

 de la temperature sur 1'activite des fourmis. 33, Ixii, 137-40. Quan- 

 titative Ameisenbiologie. 103, xlii, 435-40. Wheeler, W. M. Ants 

 of the genus Formica in the tropics. 5, xxix, 174-77. Keys to the 

 genera and subgenera of ants. 62, xlv, 631-710. Ants, their develop- 

 ment, castes, nesting and feeding habits. 91, xv, 385-404. Neotropi- 

 cal ants of the genera Carebara, Tranopelta and Tranopeltoides. 

 138, No. 48. 



Rohwer, S. A. A new parasite of the spruce budworm. 4, liv, 

 155-6. 



ECTOPARASITES. Edited by Dr. K. JORDAN and the Hon. N. CHARLES 

 ROTHSCHILD, M. A., Vol. I, pt. 4, pp. 199-286, text figures 195-280. 

 Issued September 1, 1922. [Zoological Museum, Tring, Herts, Eng- 

 land.] This publication is issued at irregular intervals, the preceding 

 three parts bearing the dates December 30, 1915; January 20, 1920, and 

 January 15, 1921, and being devoted entirely to fleas. The present num- 

 ber contains articles on Polyctenidae (including one on The American 

 Polyctcnidae by Dr. Jordan), on Clinocoridae and Siphonaptera (with 

 some new species of fleas from North, Central and South America). 

 Of the Polyctenidae Dr. Jordan says : "The five American species which 

 are known [3 of them new] are so much alike that not only must they 

 be placed in one single genus Hespcroctcncs Kirk. (1906), but cannot 

 be distinguished from one another except by a close examination of the 

 details in the vestiture and of the relative proportions of the sections 

 of the body and appendages. Hesperoctenes is a primitive genus which 

 has remained comparatively stationary, the species not having developed 

 in very different directions . . . Considering the large number of 

 species of bats which are known we may conclude that the ten Polycte- 

 nidae so far discovered represent but a small proportion of the species 

 actually existing on these mammals in the tropical and subtropical 

 countries." 



There is a Note on the Distribution of the Onjan of Bcrlesc in Clino- 

 coridae, also by Dr. Jordan. He finds that this organ (which appears 

 externally as a deep triangular incision in the apical margin of the fourth 

 abdominal sternite of females, placed asymmetrically on the right side, 

 about midway between the centre and the lateral margin of the seg- 

 ment), is present in seven described species of Clinocoris (Cimex auct), 

 Bertilia i-aldiriac and two species of Occiacns. the Swallow Bugs. In 

 Haematosiphon and Cacodmns there is an analogous organ on the upper 

 side of the fifth abdominal segment, central in Haematosiphon ("which 

 is presumably the more primitive position"), asymmetrical toward the 



