658 EXPERIMENT STATION B.ECORD. [Vol.35 



A new Physothrips (Thysanoptera) from TJganda, with a note on Physo- 

 thrips antennatus, J. D. Hood {Canad. Ent, 48 (1916), No. 4, VP- 1S0-1S2, 



fig. 1). 



Heliotlirips hsemorrhoidalis injurious to ornamental plants in the Prov- 

 ince of Buenos Aires, Argentina, C. Lizeb {Agronomia [Buenos Aires"i, 6 

 (1915), No. 36-38, pp. 9-11, figs. 3; abs. in Intemat. Inst. Agr. [Rome], Mo. 

 Bui. Agr. Intel, and Plant Diseases, 6 (1915), No. 11, pp. 1549, 1550).— Ths 

 author records injury to Pelargonium peltatum and Lagerstroemia indica by 

 this thrips. 



Eradication of the bedbug by superheating, W. A. Ross (Canad. Ent., ^8 

 (1916), No. 3, pp. 74-76). — This paper records the extermination of Cimex 

 lectularius from a 2-story, 8-room frame house, heated with a hot-air furnace 

 and kitchen and parlor stoves, in which the temperature of three of the rooms 

 was raised as high as 140, 158, and 162° F., respectively. Very satisfactory 

 results were obtained, the pest being fully eradicated and the house furniture 

 not damaged to the slightest degree. It is thought that the temperature ob- 

 tained was unnecessarily high and that the superheating would have been 

 equally efEective if the temperature had been maintained between 120 and 130°. 

 Life history notes on Apateticus cynicus and A. maculiventris, R. D. 

 Whitmaesh (Jour. Econ. Ent, 9 (1916), No. 1, pp. 51-53).— These notes relate 

 to the biology, including the predatory habits, of two stink bugs. The former, 

 the largest and most common predacious species, unlike the latter, is single 

 brooded. 



The distribution of the periodical cicada in Ohio, H. A. Gossard (Jour. 

 Econ. Ent., 9 (1916), No. 1, pp. 53-59, figs. 3).— A report of the present distri- 

 bution of the broods of 1906, 1914, and 1915 in Ohio. 



Notes on the tomato psylla, H. Compeke (Mo. Bui. Com. Hort. Cal., 5 (1916), 

 No. 5, pp. 189-191, figs. 3). — These notes relate to the biologj' and control of 

 Faratrioza cocker elli, found by the author infesting the Jerusalem cherry 

 (Solanum capsicastrum) at Sacramento and San Francisco. The solanums at 

 the latter place were rendered worthless. 



Concerning problems in aphid ecology, Edith M. Patch (Jour. Econ. Ent., 

 9 (1916), No. 1, pp. 44-51).— A discussion of some of the important ecological 

 problems. 



The present state of our knowledge of the biology of the vine phylloxera, 

 B. Grassi (Internat. Inst. Agr. [Rome], Mo. Bui. Agr. Intel, and Plant Diseases, 

 6 (1915), No. 10, pp. 1269-1290). — This article reviews the status of knowledge 

 of the biology of the grape phylloxera previous to 1905, and discusses the ad- 

 vances resulting from researches made since that date and the question as to 

 the existence of different races of phylloxera. 



Modern views of the control of the vine phylloxera, B. Gkassi (Internat. 

 Inst. Agr. [Rome], Mo. Bui. Agr. Intel, and Plant Diseases, 6 (1915), No. 12, 

 pp. 1553-1571). — The author discusses the importance of control and methods 

 usually employed, the method of control in Italy, the advisability of continuing 

 the campaign, the manner of dispersal of the phylloxera, and the proposed 

 method of control. 



A nematode parasite of root aphids, J. J. Davis (Psyche, 23 (1916), No. 2, 

 pp. 39, 40, fig. 1). — The author reports having found apterous viviparous and 

 oviparous individuals of a new species of An(x?cia infested with nematodes at 

 West Lafayette, Ind. 



Two newly-established scale insects, E. O. EssiG (Mo. Bui. Com. Hort. Cal., 

 5 (1916), No. 5, pp. 192-197, figs. 6). — The camellia scale (Pulvinaria floccifera) 

 and the dictyospermum scale (ChrysompJialus dictyospermi) are reported to 

 have recently become established in limited districts in California. 



