ECO^rOMTC ZOOLOGY — entomOlogy. 565 



" This arrangement is very similar to that of the Marx catalogue; only a few 

 changes have been made, such as the recognition of peculiar forms as i-epre- 

 senting families ; none of these changes are new." 



The Oribatoidea of Illinois, H. E. Ewing (Bui. III. State Lab. Nat. Hist., 

 7 (1909), Art. 10, pp. 337-S89. pis. 3, figs. 5).— In this work 33 species from 

 Illinois are described, of which 12 are new to science. Keys to the families, 

 genera, and species occurring in the State are included. A list of the known 

 North American species of Oribatoidea is appended. 



New American mites, N. Banks (Froc. Ent. Soc. Wash., 12 (1910), No. 1, 

 pp. 2-12, pis. 2). — Among the new species here described are Halarachne atten- 

 uata taken from a seal pup on St. Paul Island; Gamasus frontalis fi'om Perog- 

 uathus, Santa Rosa Mountains, Cal. ; G. calcarator from the nest of a field 

 mouse and Lwlaps longitarsus from a mole's nest at Falls Church, Va. ; Pterop- 

 ttis cchinipcs from Mijotis hicifugus at Homer, N. Y. ; P. grossiis from a bat at 

 Beulah, N. Mex. ; Ornithndoros marginatus from a cave in Cuba and also from 

 a West Indian bat, probably from Porto Eico ; Ixodes wqnalis from the Cali- 

 fornia ground squirrel (Citellus heecheyi) at Berkeley Hills, Cal.; OribateUa 

 angusta from a nest of Eciton ccocnm at Austin, Tex. ; Eremwus modestus from 

 an orange at Whittler, Cal. ; Nothrus tcrminalis and Hypoehihonius texanus 

 from a nest of Eeiton eorcum at Austin, Tex. ; and Histiostoma tarsalis from 

 Mus rattus at Berkeley, Cal. 



The straw itch (Dermatitis schambergi) : A disease new to American 

 physicians, J. Goldbergeb (Puh. Health and Mar. Hosp. Serv. U. 8., Pah. 

 Health Rpts., 25 (1910), No. 23, pp. 779-78}, pis. 2, figs. 5).— A brief summary 

 of the knowledge of this disease. See also a previous note (E. S. R., 22, p. 783). 



Small artificial ant nests of novel patterns, W. M. Wheeler (Psyche, 17 

 (1910), No. 2, pp. 73-75, fig. 1). — Emery's modification of Janet's nest for rear- 

 ing ants and also a different pattern employed by F. Santschi in Tunis are 

 described. 



A hopperdozer for roug'h ground, A. P. Morse (Psyclie, 17 (1910), No. 2, 

 pp. 79-81, fig. 1). — In order to escape imparting a kerosene flavor to forage 

 when combating grasshoppers, the author recommends that a piece of sheet- 

 iron or other flat surface smeared with a suitable adhesive substance such as 

 Tanglefoot be substituted for the coal-oil pan. A device which is adaptable to 

 an uneven surface is described and figured ; it is made of No. 24 galvanized 

 sheet iron in four sections with iron or steel runners so constructed as to allow 

 considerable movement in a vertical plane and even a folding over of the end 

 sections on the middle ones for convenience in transportation. 



New machine electrocutes tobacco bugs (Tobacco World, 30 (1910), No. '/. 

 pp. 12, 13, figs. 2). — A so-called electri-sterllizer which is claime^l to sterilize 

 the adults, larvsB, and eggs, without injury to the tobacco is described and 

 illustrated. 



The result is achieved by passing the tobacco through the machine, which 

 consists of a conveyor running through a tunnel capable of handling tobacco in 

 bales at the rate of a bale a minute. On both sides of the tunnel about the 

 middle of the conveyor are special vacuum tubes on the order of Crooke's 

 tubes. These emit a powerful X-ray which penetrates the bale through the 

 palm-leaf cover. The machine is built to work on a current of any initial 

 velocity at hand. 



Fumigation studies, I, W. M. Piekce (Pomona Jour. Ent., 2 (1910), No. I, 

 pp. I'i0-l.'i2, figs. //).— This paper deals with the use of water in fumigation 

 dosages. 



