ECONOMIC ZOOLOGY — ENTOMOLOGY. 655 



[Monthly bulletin of the division of zoology], H. A. Sueface (ZooL Bui. 

 Pentu DeiJt. Aor., 7 (WO'J), Aos. 1, pp. 3-31; 2, pp. 35-6J, ; 5, pp. 67-96; 4, pp. 

 99-128; 5, pp. 132-160; 6, pp. 163-192; 7, pp. 195-224).— In these numbers a4-e 

 coneldered, respectively, plant pest treatment; short articles on economic ento- 

 mology ; nursery and orchard Inspection, etc. ; fumigation, the cont'-ol of plant 

 pests, and bee keeping; fumigation of buildings, and hunting and game laws; 

 results of exi)et-imentg with lime-sulphur solution, and how to destroy San 

 Jose scale: and reports of Pennsylvania orchard inspectors. 



Spermatogenesis in Acrididae and Locustidae, H. S. Davis {Bui. Mus. 

 Compar. ZooL, 53 (1908) No. 2, pp. 59-158, pis. 9, figs. 7; abs. in Jour. Roy. 

 Micros. Soc. [London], 1909, No. 6. p. 713). — A full account is given of sperma- 

 togenesis in Dissostcira Carolina, with notes on points of special interest in six 

 other species studied. 



Catalogue of the Hemiptera (Heteroptera), with biological and anatomi- 

 cal references, lists of food plants and parasites, etc, G. W. Kirkaluy 

 (Berlin, 1909, vol. 1, pp. XL+392; rev. in Ent. Neirs, 21 (1910), No. 3, pp. 

 l'iO-tJi3). — This volume deals with the Ciuiicidie ( I'entatomidjrl. which in- 

 cludes the families which have been known as Pentatomida?, Scutellerid:e, and 

 Cydnidiie. It is prefaced by a discussion on nomenclature and an analytical 

 table of families. The review is by E. P. Van Duzee. 



Chinch bug, J. B. Parker (Kansas Sta. Circ. 5, pp. 6, fig. 1). — A brief ac- 

 count is given of the chinch bug and means for its control. In 1909 it was the 

 source of much damage in the corn belt of the State, the loss in the counties 

 infested being estimated at from .'j to 50 per cent of the crop. The damage was 

 reported to be heaviest in the southern part of the belt, particularly in Sum- 

 ner ('ounty, where the estimates varied fi-om 20 to 85 per cent of the corn crop. 



Investigations showed that the fungus disease due to Sporotrichmn globu- 

 liferum, though present among the bugs, does not always control them. It is 

 recommended that cornstalks, instead of being burned, be plowed under in the 

 fall or early winter. As soon as the grass becomes thoroughly dry. fire should 

 be run over all pastures, meadows, roadsides, and waste lands on which are 

 found bluestem. bunch grass, or other native clump-forming grasses, in which 

 the chinch bug may hibernate. 



The corn and cotton root louse in South Carolina, A. F. Conradi (South 

 Carolina Sta. Rpt. 1909, pp. 51-65). — Following complaints of injury by this 

 pest during 1908, investigations have been conducted since the spring of 1909 

 at Marion in cooperation with the Bureau of Entomology of this Department. 

 During 1909 the damage was more severe than in 1908 and besides the heavy 

 infestation in Marion County, reports of injury were received from Sumter, 

 Saluda, Colleton, and Lee counties. 



During the investigation 3 forms of attendant ants were found, namely, 

 Lusius nigcr anicricanus, Pheidole dentata commutata, and L. claviger, the first 

 named being the most common, and one or more of the 3 species being in at- 

 tendance in nearly all cases. Records were made of the food plants of the 

 aphis, principally from the vicinity of Marion, an annotated list being given 

 of the 25 host plants discovered. 



The corn root louse was found to be most injurious in localities where crops 

 are not rotated. If the field is frequently stirred after plowing and before 

 planting, it will destroy volunteer plants upon which early colonies depend for 

 subsistence. Winter plowing is considered to be the most iiractical method of 

 pontrolling the pest in South Carolina where no crop rotation is easily adapta- 



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