ENTOMOLOGY. 609 



were trapped by thousands in a projeetinji- porch. A thousand were 

 killed, placed in a heap, and photographed. 



Among the natural enemies the autlior notes especially the robin, 

 blackbird, bobolink, meadow lark, the black ground beetle, the tachiuid 

 and ichneumon flies, and ground spiders. To the action of these, he 

 thinks, is due the strange disappearance of this vexatious pest fre- 

 quently noted. 



As remedial measures he recommends (I) spraying with kerosene 

 emulsion, (-) trapping in ditches and trenches, (3) fencing out, (4) poi- 

 soning with Paris green, the powder being applied with a duster or 

 insect-powder gun, (5) drawing the rope, and (6) burning over grass 

 lands. 



Notes on the recent invasion of the army ■worm, V. H. Lowe, 

 {Xeio York State Sta. Bui. lol, n. so:, 2)i). 121-129, pis.;?, Jigs. :J).—:Sotes 

 are given on the recent serious invasion of the army worm {Leucania 

 uni2)icncta), it having been reported from 2S counties, representing the 

 more important agricultural sections of the State. The insect is poj^u- 

 larlj' described and its life history given, together with notes on the 

 injury which it causes and on its natural enemies. 



The author suggests for checking the army worm the plowing of deep 

 furrows around infested fields or in front of the advancing insects. In 

 pasture fields where the surface of the ground is comparatively even 

 and the soil is firm, the caterpillars may be crushed by a heavy roller. 

 Spraying of crops with a strong mixture of Paris green and water may 

 also be resorted to. In this case it is not necessary to spray more than 

 a strip about a rod wide in advance of the caterpillars. 



The palmetto scale, T. I>. A. Cockerell {Garden and Forest, 10 

 {1897), No. 164, p. 19). — A letter states that the palmetto scale has 

 been observed on the Pacific Coast on the leaves of palms from Mexico. 

 The palms were thought to have come from Mazatlan, where they were 

 growing wild, about 75 to 100 miles inland. These Mexican specimens 

 represent a variety {Mexicana) distinguished from the Florida form by 

 the female (under the scale) being orange yellow, and the ventral 

 grouped glands, numbering in caudolaterals, 11: to 17; in mediolater- 

 als, 11 to 15; and in cephalolaterals, 7 to 10. For horticultural purposes 

 the two forms may be treated as one. 



Dactylopius or mealy bugs, T. D. A. Cockerell {Sci. Gos., n. ser., 

 3 {1897), No. 32, pp. 199-201, fig. 1). — A short, semii)opular account of 

 the mealy bugs, with remarks on their study in Europe and elsewhere, 

 and upon books for the student of coccids. Descriptions are given of 

 a new species, Dactylopius Uchensioides, found at Fort Collins, Colorado, 

 on the flowering stem of Artemisia frigida, September 25, 189G, by C. 

 P. Gillette, and of one described originally by Maskell and Newstead 

 in 1893, from specimens found in Demerara and observed by G. C. 

 Davis on palms in a hothouse in Michigan. A very brief descriptive 

 list is also given of 21 species of Dactylopius thus far known to occur 



