PROCEEDINGS 
OF THE 
ENTOMOLOGICAL SOCIETY 
OF WASHINGTON. 
Published quarterly by the Society at 1238-1240 Pennsylvania Avenue, 
N.W., Washington, D. C. Terms for subscription, $2.00 per annum, 
single numbers 60 cents. Remittances should be made payable to the 
Entomological Society of Washington. Address all subscriptions to the 
Corresponding Secretary, Mr. E. S. G. Titus, care U. S. Department of 
Agriculture, Washington, D. C. 
PRICE OF PROCEEDINGS AND SEPARATES. 
Vols. I-V, each $3 oo 
Vol. VI.. 2 oo 
ARACHNIDA Descriptions of new American spiders. By 
Nathan Banks. 1905. 8 pp., i pi 15 
Descriptions of some new mites. By Nathan Banks. 1905. 
10 pp., 4 figs. ' 20 
COLEOPTERA Illustrations of an undetermined coleopterous 
larva. By H. S. Barber. 1905. 5 pp., 4 figs 15 
The spread of Sphseridium scarabaeoides Linnaeus. By H. S. 
Barber. 1905. 2 pp 10 
Catogenus rufus, a coleopterous parasite. By W. F. Fiske. 
1905- 3 PP I0 
Notes on some Mexican Scolytidae, with descriptions of some 
new species. By A. D. Hopkins. 1905. u pp 20 
Notes on Scolytid larvae and their mouth parts. By A. D. 
Hopkins. 1905. 7 pp., 2 pis 20 
A new species of Dona cia. By Frederick Knab. 1905. 2pp. 10 
Description of a new species of Desmocerus with a synoptic 
table of the genus. By J. L. Webb. 1905. 2 pp 10 
DIPTERA The Linnaean genera of Diptera. By D. W. Coquil- 
lett. 1905- 5 PP I0 
HEMIPTERA Notes on Eulecanium folsomi King. By T. D. A. 
Cockerell. 1905. 2 pp 10 
