568 EXPERIMENT STATION EECORD. [Voi. 37 



pest of staple crops, among which are carrots, sugar beets, sugar cane, corn, 

 cotton, celery, etc. In the present paper the author first gives a brief review 

 of the present status of knowledge of the species, with references to the litera- 

 ture, and then reports upon studies made at the Kansas Experiment Station. 



The adults are present in the soil throughout the winter and early spring. 

 During the latter part of April, or the first few days of May, and continuing 

 throughout the summer, they emerge at night and fly to lights, returning to 

 the soil before daybreak. During the summer of 1916, eggs were plentiful 

 at Manhattan from the last of May to late in July. Larvae were present from 

 June throughout the remainder of the summer and early fall, and pupa; from 

 the last of July to the last of October. Thus far no satisfactory method of 

 control has been worked out. No special time can be set for the destruction of 

 the pupae by plowing due to the fact that pupation extends over a long period. 



Notes on an introduced weevil (Ceutorhynchus marginatus), J. A. Hyslop 

 iJour. Eeon. Ent., 10 (1911), No. 2, pp. 278-2S2, fig. i).— This European weevil 

 ((7. marginatus) was found by the author to infest nearly every seed head 

 of the dandelion at Bridgeport, N. Y., in 1916. 



The strawberry root weevil in British Columbia, R. C. Tueheune (Canad. 

 Ent., 49 {1911), No. S, pp. 251-260). — The data here presented supplement those 

 given in a bulletin previously noted (E. S. R., 32, p. 556). 



[The rice water weevil], F. C. Querf.au {Louiiiana Stas. Rpt. 1916, pp. 25, 

 26). — Oil experiments with Lissorhoptrus simplex indicate that the application 

 of 15 gal. per acre will result in a 25 to 40 per cent increase in yield. It is 

 stated that 40 gal. of crude oil has been used to a single acre without injury 

 to rice when the leaves were not resting on the surface of the water. By 

 draining the land and allowing it to become dry 15 days after the initial irri- 

 gation the damage from the " maggot " is largely prevented. 



A newly-introduced clover beetle (Sitones hispidulus), E. C. Van Dyke 

 {Mo. Bui Com. Hort. Cal., 6 {1911), No. 1, pp. 24S, 249).— The author records 

 the occurrence of this European clover beetle in California for the first time. 



The ABC and X Y Z of bee culture, A. I. and E. R. Root {Medina, Ohio: 

 The A. I. Root Co., 1911, rev. and tnl. ed., pp. 8+830, pi. 1, figs. 1S2).—X new 

 revised and enlarged edition of the work previously noted (E. S. R., 19, p. 

 1058). 



Diprion simile in North America. S. A. Rohwer (Proc. Ent. Soc. Wash., 

 18 {1916), No. 4. pp. 21S, 214). — The European pine sawfly D. simile, pre- 

 viously reported by Britton as occurring in several localities in Connecticut 

 (E. S. R., 35, p. 53), is said to have been receivefl from inspectors in Massa- 

 chusetts, Pennsylvania, and New Jersey, though it is not known to have become 

 established in any of these three States. It has, however, btx-n received from 

 one nursery in New York under conditions which indicate that it has become 

 established. 



The Argentine ant as an orchard pest, H. S. Smith {Mo. Bui. Com. Hort. 

 Cat.. 6 {1911), No. 1, pp. 254-258. figs. S). — This ant has become an important 

 orchard pest in California through its protection of mealy bugs and .scale in- 

 sects from their natural enemies. In investigations thus far poisoneil sirup, 

 placed in paraffin paper bags attached to trees, has given more promising 

 results than banding. 



Ants protecting acacia trees in Central America, E. A. Sciiwarz {Proc. Ent. 

 Soc. Wash., 18 {1916), No. 4- PP- 211, 2i2).— Observations by the author in the 

 Canal Zone of Panama and at Tampico, Mex.. fully corroborate the original 

 observations of T. Belt * to the effect that the ants effectually defend the acacia 



1 The Naturalist in Nicaragua. London : Edward Bumpus, 1888, 2. ed., rev., pp. 

 XXXII + 403. 



