240 
Index 
[December 
Frost, C. A. Unusual Occurence of Gyrinus. 31. 
Jacot, A. P. New Oribatoid Mites. 213. 
Johnson, C. W. A New Cecidomyiid of the Genus Lestodiplosis. 216. 
Kendall, J. A New Gall Mite on Prunus maritima Wang. 210. 
Latta, R. The Effect of the Extreme Temperature of Dec. 7, 8, and 9, 1927 
on Hibernating Crioceris asparagi L. and Hippodamia convergent Guer. 
at Ames Iowa. 229. 
Mann, W. M. II. A New Microdon from Panama. 168. 
Marshall, R. A New Species of Water Mite from Thermal Springs. 92. 
Mickel, C. E. The Mutillidse of Cuba. (Hymenoptera) . 16. 
Myers, J. G. Some Cuban Cicadidse, Cercopidse, and Membracidse. 119. 
Rau, P. The Nesting Habits of the Pulp-making Bee, Alcidamea producta 
Cress. 100. 
Rau, P. Modification of the Nest-Building Habits of Polistes. 147. 
Rau, P. The Reconstruction of Destroyed Nests by Polistes Wasps. 151. 
Rau. P. Trophallaxis in Polistes pallipes. 153. 
Robertson, C. Anthemoessa abrupta. 57. 
Robertson, C. Localities of Insects Collected by Charles Robertson, 61. 
Salt, G. Notes on the Life History of Pelecium sulcatum Guerin. 131. 
Seeman, E. The Working Hours of Ants. 114. 
Strelnikov, T. D. Mermis Parasitism in Pachycondyla striata. 199. 
Taylor, R. L. The Destructive Mexican Book Beetle Comes to Boston. 44. 
Taylor, R. L. The Arthropod Fauna of Coniferous Leaders Weeviled by 
Pissodes sir obi (Peck). 217. 
Van Duzee, M. C. Table of the North American Species of Medeterus, with 
Descriptions of Three New Forms. 36. 
Walker, F. H. An Introduced Moth ( Heliothis dipsacea L.). 29. 
Wheeler, W. M. A New Species of Probolomyrmex from Java. 7. 
Wheeler, W. M. Ants of Nantucket Island, Mass. 10. 
Wheeler, W. M. Some Cordia and Triplaris Insects. 167. 
Wheeler, G. C. The Larva of Leptanilla (Hym: Formicidse). 85. 
Whiting, P. W. Biological Observations on Nemeritis canescens (Grav.) 
(Ichneumonidse). 125. 
Wilson, R. J. The Male Genital Tube of the Amphizoidse. 98. 
