25 L 



Dyar (H. G.) & Knab (F.). Bromelicolous Anopheles— a Cdrrectidn 



(Diptera, Culicidae). — Inseciitor Inscitiae Menstruiis, Washington, 

 D.C., vi, no. 7-9, July-September 1918, pp. UO-Ul. 



It appears that the earlier identification of Kerteszia holiviensis, 

 Theo., Avith Anopheles lutzi, Thee, nee Cruz {A. cruzi, D. & K.) is 

 an error. Kerteszia is still unlcnown in nature, but it evidently cannot 

 be used as a subgeneric name for the bromelicolous species of 

 Anophelines, and for these the name Dendropaedium is suggested, 

 based on the character of the hairs and scales of the thorax and 

 abdomen. 



EwiNG (H. E.). The Use of Palliatives for Mosquito Bites. — Jl. Econ. 

 Entom., Concord, N.H., xi, no. 5, October 1918, pp. 401-404. 



This paper records an experimental investigation into the remedial 

 qualities of the different chemicals that have been suggested as 

 palliatives for mosquito bites. A table shows the results of tests 

 with soap, bay rum, 95 per cent, alcohol, 30 per cent, alcohol, hydrogen 

 peroxide, glycerine, concentrated and weak solutions of ammonia, 

 and indigo in water. Of these, soap, bay rum, dilute alcohol and 

 ammonia have slight value. Strong alcohol and strong ammonia 

 have the greatest value as palliatives, both giving a marked reduction, 

 in pain. The former is apt to leave a hardened lump, while the latter 

 is rather harsh on the skin. 



Hutchinson (R. H.). A Note on the Life Cycle and Fertility of the 

 Body Louse {Pediculus corporis). — Jl.Econ. Entom., Concord, N.H., 

 . xi, no. 5, October 1918, pp. 404-406. 



A table is given recording the rate of development and of deposition 

 of eggs of the body-louse, Pediculus humanus (corporis), at body- 

 surface temperature with unlimited opportunities for feeding. This 

 fully confirms the data given by Nuttall [see this Review, Ser. B, vi, 

 p. i9], but shows a higher record of oviposition than any previously 

 published. A total of 276 eggs were deposited during a period of 25 

 days, or an average of 11 per day with a maximum of 14 eggs in 24 

 hours. 



Walter (B. V.). Experiments on Cocliroach Control. — Jl. Econ. 

 Entom., Concord, N.H., xi, no. 5, October 1918, pp. 424-429. 



The results of experiments undertaken by the Iowa Agricultural 

 Experiment Station in the summer of 1917 on the control of Phyllo- 

 dromia [Blattella) germanica and Blatta orientalis may be summarised 

 as follows : — (1) Traps may be used as a means of control, but cannot 

 be relied on as a method of extermination. (2) Boric acid is a safe 

 and economical material to use, as it is non-poisonous to human beings 

 and yet very effective against cockroaches. (3) A mixture of equal 

 parts of powdered borax and powdered sugar ground together is 

 effective against cockroaches, is safe and econoinical, although slower 

 in action than boric acid. (4) Cockroaches eat these substances in 

 an effort to keep clean and not for any possible food value. 



(C539) Wt. P2/137. 1,500. 2.19. B.&F.Ltd. Gp.11/3. A 



