758 EXPERIMENT STATION EECOKD. 



living trees tlie bark was dead and the wood discolored for a greater or less 

 distance around the holes where the cyauid had been placed." 



Farm beekeeping, E. E, T\-xeb and L. Haseman (Missouri Sta. Bui. 138 

 (1915), pp. 3-40, figs. 20). — This is a general account of the honeybee and bee- 

 keeping. Receipts for the use of honey are included. 



The olfactory sense of the honeybee, N. E. ]McIndoo (Jour. Expt. Zool., 16 

 (.1914), Xo. 3, pp. 265-,346, figs. 24). — In the investigation here reported the 

 author had two objects in view: (1) The determination of the relative sensi- 

 tiveness of the honeybee to different odors, so that it may be expressed nu- 

 merically for comparison luider different conditions; and (2) the location of the 

 olfactory organs. Experiments were conducted with normal bees and mutilated 

 bees in observation cases, and a study was made of the morphology of the olfac- 

 tory pores. 



" Bees have a very acute sense of smell. This sense is most highly developed 

 in the drones and least developed in the queen, while that of the worker is 

 scarcely inferior to that of the drone. Olfactory pores are found on the bases 

 of all four wings, widely scattered on the trochanter and at the proximal ends 

 of the femur and tibia of all six legs, on the second and third tarsal joints 

 of most legs, and generally distributed on the shaft and lancets of the sting. 

 Each pore is a chitinous structure connected with a bipolar sense cell, the 

 peripheral end of which comes into direct contact with the external air. Such 

 sense cells are met with in all insects, for Kiinckel and Gazagnalre (1881) 

 assert that bipolar sense cells are common to all insects." 



Parasitism among the larvee of the Mediterranean fruit fly (Ceratitis 

 capitata) in Hawaii during 1914, E. A. Back and C. E. Pemberton ([Bicn.] 

 Rpt. B(L Comrs. Agr. and Forcstnj Hawaii, 191.3-14, pp. 153-161). — This paper 

 includes tabular data on the roaring of parasites from coffee (see E. S. II. 32, p. 

 757). Chinese oranges, and strawberry guava. The authors found a parasitism 

 of from 29 to 53.8 per cent among pupa; from the strawberry guava (Psidiutn 

 caitlcijanum) In Honolulu in July, 1914. Opius humili.^, introduced from South 

 Africa and first liberated on the Island of Oahu in November and December, 

 1913, appears to be largely responsible for the noticeable decrease of the 

 fruit fly. 



On some genera of the pimpline Ichneumoxddse, J. H. Meerill ( Transi. 

 Amcr. Ent. Soc, 4I (1915), Xo. 2, pp. 109-154, pis. 5).— A systematic .study of 

 the genera Megarhyssa. Rhyssa, Apechoneura, and Pseudorhyssa with 14 species. 

 One genus and spooios, rscudorhi/ssa stcninta, arc described as new to science. 



Sugar cane borer parasites and control of borers, P, van der Goot (Mcded. 

 Procfstat. JavO'SuikcritKitts., 5 (1915), No. 4' 125-116, pis. S; abs. in Rev. Appl. 

 Ent., 3 (1915), Scr. A, Xo. 7. pp. 3S'2-3S6) .—In Java the borers are the most 

 important enemies of sugar cane. In the present paper four species, namely, 

 the striped stalk borer (Diatro'a striataU<>), the yellow tip borer (Chile in- 

 fuscatcUus), the white tip borer (Scirpophaga intacta), and the gray borer 

 (Olcthrcutcs [Grapholifha] schistaccana), and their parasites are dealt with 

 at length. 



A list of Tenthredinidie collected in the Luga district of the Government 

 of Petrograd and some biological observations on them, V. Padalka (Rhss. 

 Ent. Ohozr., 14 (1915), Xo. 4, pp. 460-472: abs. in Rev. Appl. Ent., 3 (1915), Ser. 

 A, Xo. 7. p. 389). — A list is given of 108 species of Tontliredinida? and 5 of 

 Lydidae collected near Luga, in the Government of Petrograd. together with host 

 plants and a more or less full account of their life histories. 



Two strawberry slugs, R. L. Webster (Iowa Sta. Bui. 162 (1915), pp. 3-20, figs. 

 11: popular ed., pp. .}. figs. 3). — The early strawberry slug (Empria fragarict) 

 and the late strawberry slug {E. maculata) are here considered, the first having 



