134 



Buxton (P. A.). Body-Lice under Summer Conditions in Mesopotamia. 



— Parasitology, Cambridge, xii, no. 2, March 1920, pp. 173-174. 



Attention is drawn to the absence of body lice [Pediculus humanus] 

 during the summer in countries with very dry chmates. The summer 

 in Mesopotamia appears to be very unfavourable for the reproduction 

 of this species, as it is generally very dry and the maximum shade 

 temperature normally exceeds 105° F. on most days of the four summer 

 months and may reach 120° F. or more. 



Friedeeichs (K.), Untersuchungen iiber Simuliiden. [Investiga- 

 tions on Simuliids.] — Zeitschr. f. angew. Etitom., Berlin, vi, no. 1, 

 September 1919, pp. 61-83, 15 figs. [Received 19th April 1920.] 



Simuhids may be found in Germany in any flowing stream running 

 through pastures, provided the water is rich in oxygen. The most 

 common species are Sitnuliiim reptans, L., and S. tnaculaium, Meig. 

 Hibernation occurs in the larval stage. The technique employed in 

 breeding these flies is described. 



With regard to their control the measure suggested as likely to be 

 successful is the systematic clearing of all streams in the vicinity 

 of pastures from weeds and undergrowth ; this should be done early 

 in the spring before pupation occurs, which may be any time between 

 March and May. 



As Simuhids are light-loving species the planting of alders or other 

 suitable trees along the banks of the stream may prove effective. 



Animals should be protected from the bites of these insects by 

 ear-coverings and the provision of extensive shaded areas on pasture 

 land. This may be supplied by trees or artificial shelters. 



S. angustitarse, Lundstrom, so far only recorded from Finland, is 

 now reported from the vicinity of Berne. 



Frickhinger (H. W.). Chelifer cancroides als Feind der Bettwanze 



{Cimex lectularius, L.). [Chelifer cancroides as an Enemy of the 

 Bed-bug, Cimex lectularius, L.] — Zeitschr. f. angew. Entom.., Berlin, 

 vi, no. 1, September 1919, pp. 170-171. [Received 19tli April 

 1920.] 



Chelifer cancroides is recorded as being predaceous on bed-bugs, 

 Cimex lectularius, L., in the Government of Perm in the Ural Mountains. 



Milbenbefallene Futtermittel als Ursache von Haustiererkrankungen. 



[Mite-infested Fodder as Cause of Disease in Domestic Animals.] — 

 Zeitschr. f. angew. Entom., Berlin, vi, no. 1, September 1919, 

 pp. 173-174. [Received 19th April 1920.] 



Attention is drawn to the importance of disinfecting fodder to 

 prevent internal injury to stock. Clover infested with the mite, 

 Acarus foenarius, has proved very injurious to animals and Tyroglyphus 

 {Aleurobius) farinae is found in abundance in stored foodstuffs. 



