ECONOMIC ZOOLOGY — ENTOMOLOGY. 555 



timbers prolonged. . . . luipreguating props inteiuled for periuanent service 

 with creosote by some standard process (either by the ' open-taulv ' or by the 

 cylinder-pressnre processes) will keep out termites and other wood-boring 

 insects and preserve the props for a much longer period than they would last 

 imtreated." 



See also preA'ious notes (E. S. R., 24, p. 250; 27, p. 443). 



A contribution to the study of the lucifuge termite, J. Fkytaud (Arch. 

 Anat. Micros., 13 (1012), No. 4, pp. /,Sl-607, pis. 3, flffs. 3/,).— This paper deals 

 with the anatomy and histology of, and the foundation of new colonies by, 

 Lcucotcrmcs (Tcrmcs) lucifuyus. A bibliography is apiDended. 



The greenhouse thrips (Heliothrips hoemorrhoidalis), H. M. Russell (V. S. 

 Dept. Agr., Bur. Ent. Circ. 151, pp. 9, figs. 7). — This cii'cular is based on the 

 paper previously noted (E. S. R., 21. p. 559). 



Spraying for the orange thrips, A. W. Morrill (Arizona Sta. Rpt. 1911, pp. 

 552-55-'i). — It was found that lime-sulphur solution alone, at the rate of 1 part 

 to 85 parts of water, was as effective as when tobacco extract was added. 



Note on a trypanosome from Conorhinus rubrofasciatus and its inocula- 

 tion into the rat and mouse, A. T>afont (Compt. Rend. Soc. Biol. [Pans], 72 

 (1912), No. 9, pp. 380-382; abs. in Sleeping Sickness Bur. [London], Bid., J 

 (1912), No. 36, pp. UiO, Hil). — Flagellates were found by the author in the 

 alimentary tract of SO per cent of the reduviid C. ruhrofasciatus captured in 

 the island of Mauritius and of 50 per cent of those taken in the island of 

 Reunion. A series of forms between leptomonas and trypanosome types was 

 found, the first named being rare. The name Trypanosoma boylei has been 

 given to the trypanosome form, inoculation experiments with which are briefly 

 reported. The author points to the possible pathogenic role of this trypano- 

 some for man. 



Elm-leaf curl and woolly aphid of the apple, Edith jM. Patch (Science, n. 

 scr., 36 (1912), No. 91), pp. 30. 31). — Spring migrants of Scltizoneura ameri- 

 cana, which causes the elm-leaf curl, having been observed to desert the elm 

 leaves in the early summer, and fall migrants of S. lanigera (the woolly aphis 

 of the apple) to leave the apple branches in the fall, the author conducted 

 investigations to determine a possible relationship. 



In the spring of 1912 elm-leaf curl was obtained from the South and the 

 emerging winged forms were caged over apple seedlings in the greenhouse 

 while depositing their young. "As a result, the progeny, a fine lot of nym])hs 

 that are growing along creases where the thin bark is scaling back, in the 

 axils of the leaves, and on exposed roots of the apple seedlings, covered by a 

 typical flocculent white secretion, would be pronounced ' woolly aphid of the 

 apple ' by any nursery inspector." It is pointed out that if the American 

 species on elm is the same as the European species, the name of our orchard 

 pest, the woolly aphis, will revert to S. ulmi. 



Papers on deciduous fruit insects and insecticides. — The grape scale (Aspi- 

 diotus [Diaspidiotus] uvse), J. F. Zimmek (U. S. Dept. Agr., Bur. Ent. Bui. 97, 

 pt. 7, pp. 1 15-12 'f, j)ls. 3, figs. 2). — The grape scale has been reported to be more 

 or less destructive to grape vines during the last 3 decades. In addition to 

 the grape it occurs to a very limited extent on certain forest and shade trees. 



Notes of the Bureau of Entomology record the receipt of this scale from 

 T. Pergande at St. Louis as early as 1875. It has since been found to be 

 rather widely distributed in the eastern United States, occurring from Florida 

 north to New Jersey. It is known to occur in Alabama, Arkansas, Delawaro. 

 District of Columbia, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, 

 Maryland, Mississippi, ]\Iissouri, New Jersey, North Carolina, Ohio, Tennessee, 

 65584°— No. G— 12 5 



