112 



4 inches below the surface of the water, maintaining its position by a 

 gentle movement. T. annulata, Schr., was fairly common after 24th 

 February. 



Mansfield-Aders (W.). Notes on the Identification of Anophelinae 

 and their Larvae in the Zanzibar Protectorate. — Bull. Entom. 

 Research, London, x, no. 3, April 1920, pp. 329-332. 1 fig. 



Of the four Anoj^hehnes that have been found in the Zanzibar 

 Protectorate two are well-known malaria carriers. These are 

 Anopheles costalis, Lw., and A.fanestus, Giles, the others being,^4. 7nauri- 

 tianus, Grp., and A. squamosus, Theo. A brief description is given 

 of the adults by which each may be easily recognised. The identi- 

 fication of the larvae is more difficult. Those of A. costalis are generally 

 found in small collections of rain-water, shallow swamps surrounded 

 by grass and in cement tanks, especially those with a growth of algae 

 at the sides. Larvae of A. fanestus usually occur in backwaters of 

 streams and at the edge of sluggish rivers overhung by vegetation. 

 They are often found with A. costalis, but may be distinguished from 

 any other species by a pair of thick feathered hairs springing from a 

 chitinous pocket near the middle of the thorax. A. mauritianus is 

 identifiable by a conspicuous hair-tuft in the median region of the 

 antennae, and by two fan-shaped tufts of short black hairs above 

 the mouth-brushes. The larvae have a pecuHar and characteristic 

 habit of twisting themselves into an S-shape. 



PiLLERS (A. W. N.). Glycijphagus domesticus, De Geer, an accidental 

 Parasite in the Ear of the domesticated Rabbit. — Vet. Jl., London, 

 Ixxvi, no. 4, April 1920, pp. 126-128, 4 figs. 



A case is recorded of the Tyroglyphid mite, Glycyphagus domesticus, 

 being found in the ear of a domestic rabbit. The species in question 

 is a grain pest, resembling G. spinipes, but being much less common ; 

 neither of these mites is usually parasitic. G. domesticus is said to be 

 ■commonly found in houses on all kinds of dried animal and vegetable 

 matter and has also been known to occur in rush furniture, cork and 

 ■even tobacco ; it has occasionally been recorded upon man and 

 animals. 



Ne VERM ANN ( — ) & WiLHELMi ( — .). Zuf Bckampfung der Kriebel- 

 muckenplage. [Measures against Simulium.] — Deutsche Tierdrztl. 

 Wochenschr., Hanover, xxviii, no. 12-13, 27th March 1920, 

 pp. 133-138. 



This article indicates the various points concerning the Simuliidae 

 ■on which further knowledge is required. About 400 references on the 

 subject were consulted. The methods that have been advocated 

 against these pests are mentioned. Those recommended are the 

 regulation of pasturing, the protection of animals with repellents, and 

 the removal of vegetation from small streams in March and in the 

 ;autumn. 



