1S5 



CifiDDLE (N.). Insect Pests of Southern Manitoba during' 1912. 



Anil. Reporl I'juloiii. Soc. of (Jiitdiio, 7\jruiilo, 1913, 



pp. 97-100. 



The autliuv records an iiiiprecedented oidbreak of Slonioxjjs 

 calcitrans, which not only caused great annoyance; to horses and 

 cattle, but also rendered the ears of dogs quite raw. On tlie 

 other hand even single individuals of the horse Hy were rare. 

 The usual luosciuitos, house Hies and h'ss important pests 

 maintained normal proportions. 



•loYELX (Ch.). Biologie de Cmn'.r boncti. [The bioh)gy of 

 C. rotundatus {boueti}.] — Archives de J'(ir(isiiol(j<jic, runs, 

 15th April 191:;, pp. UO-HO, 8 fig-s. 



The author says that Ci niex rotundntus is found in various parts 

 of the French Sudan, at liuake on the Upper Ivory Coast, in 

 Tapper Guinea, at Gao, near Timbuktu, more northward at 

 -lenne, at Wagadugu, in Upper Daliomey, at Kankan and at 

 Beyla; its south-western limit seems to be Kurussa, where 6'. 

 Icetithinn.s also occurs. Their bile is much tlie same in its 

 effects, but C. rotundatvs has not the odour characterising the 

 other. It has a number of hosts, such as man, mice, rats, &c., 

 but in one case a whole brood succumbed when fed on a white 

 mouse, though neither the insects nor the mouse showed anything- 

 abnormal and the latter was afterwards used successfully to bring' 

 up many other broods. No parasites of any kind were found in 

 ('. /'(jtiindaius, for Trupanosoma cnizi, known to infest it else- 

 where, has not appeared in Africa. 



The insect merely increases in size during' its five moults, 

 which, like the incubation of the eggs, last a longer or shorter time 

 according' to the weather, being' more rapid in Upper Guinea in 

 March, April and May, the hot season, than during- the rest of 

 the year. The females are fecundated after the fifth moult and 

 lay a decreasing number of eggs after each subsequent meal ; life 

 is"^shorter than that of the males, which may last 4 or 5 months; 

 and the insects, as they grow older, can remain a longer time 

 without food, varying from 15 to 42 days. 



Maltese (P.). Educazione Antimalarica e Profilassi Antinialarica 

 Scolastica nella Provincia di Trapani. [ Education concerning 

 Malaria and its Prevention m the Schools of the Province of 

 Trapani.] — La Propat/anda Antimalarica, Naples, no. 2, 

 30th April 1913, pp. 37-45. 



The author relates in detail how the use of quinine in the 

 elementary schools at Salemi reduced the proportion of malarial 

 fevers from 40-9 per cent, in 1906-7 to 1 per cent, in 1911-12. He 

 goes on to describe the lectures given to elementary teachers at 

 Salemi and Trapani, with the aid of statistical tables, maps 

 representing the distribution of malaria throughout the world, 

 and illustrations showing the eftects of the disease, the appearance 



