ECONOMIC ZOOLOGY ENTOMOLOGY. 451 



review the antlior presents tables for the separation of the families, genera, 

 and species of the Odonnta here described as occnrring in Wisconsin. 



The life history of the termite, K. Esciierich {8ci. Amer. Sup., 67 (1909), 

 No. 1730, pp. 136-138, figs. 8). — An account is given of the life history and 

 habits of the white ant. About 350 species are said to have been described. 

 An auuouucenient is made of a forthcoming book uiion these Insects. 



Termes gestroi, W. Towgood (Agr. Bui. Straits and Fed. Malay States, 8 

 (1909). \o. 3, pp. 97-lOJi). — The methods employed in exterminating T. gestroi 

 are described. The author has arrived at the conclusion that the eradication 

 of the pest in the Malay I'eninsula is possible. 



First report of the committee of control of the South African central locust 

 bureau, C. Fuller et al. (Rpf- Vdiiiinitlce (Jontrol So. African Vent. Locust Bur., 

 1 (1907), pp. 112, pi. 7).— The history of the bureau, of which this is the first 

 report, is summarized. Following a dispatch addressed by the High Commis- 

 sioner to the governors of the British South African colonies, a conference was 

 held at Pretoria in August, 190G, at which the several colonies were represented. 

 Resolutions were passed which led to the formation of a central bureau, located 

 at Pretoria and maintained by subscriptions from the several colonies. The 

 governments of German Southwest Africa, and Portuguese East Africa have 

 since become associatetl with the bureau. It is the duty of the secretary to 

 arrange for the collection, tabulation, and distribution to each of the contribu- 

 ting administrations of all data concerning the movements and biology of the 

 several devastating locusts of South Africa. 



A report is presented of the first meeting of the bureau, which was held at 

 Pretoria in 1907. C. W. Howard, honorary secretary, reports upon the work up 

 to June 30, 1907. A review is given of the work of locust destruction conducted 

 within recent years by the various South African administrations (pp. 44-60) 

 in which the red-winged locust (Cyrtocanthacris scptenifusciata) and the brown 

 locust (Pachytylus sulcicollis) are the species dealt with. 



Investigations by C. P. Lounsbury have shown that several hatchings from 

 one laying of eggs may take place, each following after a rain. Eggs that had 

 been kept in bulk in dry tins and jars, were at intervals removed to dishes and 

 wet. These hatched when placed in an incubator at a temperature of 90° F. 

 Eggs secured in 1904 were thus hatched in 1907. Locusts as food and as a 

 commercial product and the treatment of locusts with arsenic are also con- 

 sidered. 



Turkish locust destruction, J. B. Jackson (Daily Cons, and Trade R2}ts. 

 [U. S.] 1909, No. 3Ji60, p. 9). — With a view to preventing a recurrence of the 

 devastation in northern Syria of 1908, a commission appointed by the govern- 

 ment has required every rural inhabitant to collect and deliver at least 55 lbs. 

 of locust eggs under penalty of a fine. This has resulted in the collection of 

 629,882 lbs. of eggs. In addition the surface of certain territories was plowed 

 over to the extent of over 4.000 acres. 



Two new species of North American Tingitidae, O. Heidemann (Proe. Ent. 

 Soc. Wash., 10 (1908), No. 1-2, pp. 103-108, pi. D.—Acysta pcrscw, which in- 

 fests the avocado (Persea spp.) and camphor trees in Florida and Louisiana, 

 and Leptohyrsa explanata, which infests mountain laurel (Kalmia latifolia) 

 and Rhododendron mnxinmni, are described as new. 



Aphididae of southern California, I, E. O. Essig (Pomona Jour. Ent., 1 

 (1909), No. 1, pp. 1-10, figs. 7). — Lachnus californieus taken from cultivated 

 pines, Wiopalosiphum violce from violets, and Pemphigus radieicola from the 

 roots of Aniaranthus rctroflexus and Solanum douglasii. are described as new. 



Plant louse parasites, I, C. F. Baker (Pomona Jour. Ent., 1 (1909), No. 1, 

 pp. 22-25). — A table is presented for the separation of all the genera of Aphidi- 



