100 



The author considers ihat Stebbing confused individuals of S. 



querci with Chramesus globulus, while the gallery of a shot-hole borer 



assigned by Stebbing to C. globulus was probably that of Crossolarsus 



fairmairei. S. macmahoni , Steb., is considered to be a variety of 



Hylesinus cingulaUts, Blandf., first found in Japan. 



Stebbing considered this group of bark-beetles to be important 

 pests, but it is rather remarkable that during the past six or seven 

 years no cases of serious damage have been recorded, and there is no 

 evidence indicating their primary importance. Data point to 5. 

 siwalikensis and S. globulus being secondary pests, inhabiting dead 

 or dying trees. These bark-beetles are found in competition with 

 other bark-breeding species, such as Longicorns and Buprestids, and 

 are usually confined to the upper parts of the boles and the smaller 

 branches, so that they are never able to increase to excessive numbers. 

 Observations on S. siwalikensis in young sal forests have failed to 

 yield any evidence of its ability to increase in large clear-felling areas 

 and subsequently attack coppice growth. Stebbing's conception of 

 five well-marked generations of 5. siwalikensis should be replaced by 

 two main flight periods made up of overlapping broods of inseparable 

 generations, in which the swarm period of a brood may occupy a 

 longer time than the minimum life-cycles of two generations. 



Jarvis (E.). Entomological Notes. — Queensland Agric. Jl., Brisbane, 

 xvi, pt. 5, November 1921, pp. 321-324, 1 plate. 



Further experiments on the breeding of Campsonieris tasmaniensis, 

 Sauss., are described [R. A.E., A, viii, 79]. There are apparently four 

 broods of this wasp and of C. radula in the year. The Tachinid Cero- 

 masia sphenophori is being bred for future liberation in the sugar-cane 

 areas infested with cane-grubs. Continued indiscriminate burning 

 of trash greatly reduces these parasites, and it is therefore suggested 

 that, when possible, a small patch of infested sugar-cane should be 

 reserved in some obscure corner as a breeding ground for the fly. 



Tryon (H.). Caterpillar Plague {Leucania unipuncia. Haw.). — 

 Queensland Agric. Jl., Brisbane, xvi, pt. 5, November 1921, 

 pp. 331-349, 3 plates, 1 fig. 



This is a reprint of an article originally published in 1900. 



The various stages, habits and the life-history of Cirphis [Leucania) 

 unipmicia, Haw., are described. Under normal conditions this moth 

 does not cause very serious damage, but it appears periodically in 

 great abundance. Of its many natural enemies the following are 

 dealt with in detail : the Ichneumonids, Theronia rujipes, Tryon, 

 Exephanes leucaniae, Tryon, and Paniscus sp. ; the Braconid, Apanteles 

 ruficrus, Hal. ; the Tachinid, Linnaemyia nigripalpus, Tryon ; and 

 the predacious Carabid beetle, Calosoma aiistralis, Hope. 



The usual remedial measures, such as rolling, the use of poison baits, 

 ditches, etc., are described. 



NicHOLLs (H. M.). Annual Report of the Government Microbiologist. 



— Tasmania Dcpt. Agric & Stock, Kept. 1920-21, Hobart, 1921, 

 pp. 10-13, 6 figs. [Received 29th December 1921.] 



Spraying with lime-sulphur solution (1 : 7) has been successfull}/ 

 continued for the suppression of the San Jose scale [Aspidiotus 

 perniciosus], the numbers of which are becoming greatly reduced. 



