133 



Walden (B. H). Abundance of the German Roach in a City Dump. 



Blatella germanica, Linn. — Conn. Agric. Expt. Sta., JSleiu Haven, 



Bull. 234, 1922, pp. 188-189. 

 Blatella germanica, L., was very abundant in a dump in a park in New 

 Haven, and caused much trouble by migrating to neighbouring houses. 

 Periplaneta americana, L., and Gryllus domesticus, L., were also present. 

 The numbers were greatly reduced by spraying with kerosene and by 

 burning as much of the rubbish as possible. 



Mason (F. E.). Veterinary Pathological Laboratories. — Ann. Rept. 

 Vet. Service, 1920-21, Minist. Agnc, Egypt, Cairo, 1922, pp. 

 23-40. 



The occurrence of Egyptian fever in buffalos is recorded [R..A.E., 

 B, X, 127]. The ticks that have commonly been found in association with 

 the disease are Boophilus {Margaropns) annulatns, B. [annidatits] 

 australis, and Hyalonima aegyptium. From the nature of the disease it 

 is evident that it is caused by a Theileria (probably T. anniilata) and 

 not by a Piroplasma, and there is evidence that it is not transmissible 

 b}^ blood inoculation. The indications are that the blood parasites 

 must pass through the sexual stage in the body of a tick before becoming 

 infective. The disease is by no means peculiar, or limited to Egypt, 

 and in view of its distribution and identity with " Transcaucasian 

 fever," it is suggested that a more geographically suitable name than 

 either of these should be found. 



During an attack of Aphis legnminosa on forage crops, it was found 

 that farm animals, particularly donkeys, and to a less extent horses, 

 suffered from the presence of this Aphid. The animals lost a good deal 

 of their hair, exhibited symptoms of inflammation and swelling, and 

 when fed on infested clover in stables developed inflammation of the 

 mouth. This complaint is said to be peculiar to Upper Egypt, and is 

 common during the clover season, especially on land where the crop 

 is not watered. 



Johnston (T. H.). Onchocerciasis of Queensland Cattle. — Trans. 

 & Proc. R. Soc. S. Australia, Adelaide, xlv, 21st December 1921, 

 pp. 231-247, 28 figs., 1 table. [Received 29th April 1922.] 



The three species of Onchocerca recorded as parasites of the con- 

 nective tissues of Queensland cattle are Onchocerca gutturosa, Neum. 

 (recorded in a previous paper as 0. bovis, Piettre [R. A.E., B, viii, 174]), 

 which is probably widely distributed in Queensland, and occurs not 

 uncommonly in cattle slaughtered in Sydney ; 0. lienalis. Stiles, 

 which is extremely common in cattle, especially in dairying districts 

 on the south-east ; and 0. gibsoni, Cleland & Johnston, which occurs in 

 cattle in Queensland, New South Wales, and the Northern Territory. 



A description of both sexes of these species is given, and reference is 

 also made to 0. fasciata, Railliet & Henry, which infests camels in 

 Western Australia. 



Johnston (T. H.) & Tiegs (O. W.). What Part can Chalcid Wasps 

 play in controlling Austrahan Sheep-maggot Flies? — Queensland 



Agric. Jl., Brisbane, xvii, pt. 3, March 1922, pp. 128-131. 



This paper has been published to give wider publicity to views 

 expressed by these authors on previous occasions [R.A.E., B, ix, 

 155 ; x, 1] on the economic importance of Chalcids in the control of 

 sheep-maggot flies, and to add some further observations. 



(fi838) Wt.P.6 200 1500 7,22 Hirrow G.75 M 



