8 



and slirubs. This lias occurred in Hawaii, Fiji, New Caledonia and 

 the coastal districts of New South Wales and Queensland. During 

 the last ten years many residents in lantana-infested areas on the 

 Tweed and Richmond Rivers have requested the Department of 

 Agriculture to distribute lantana flies in New South Wales. It is 

 recognised, however, that insects introduced into a different climate 

 with a new and varied fauna may desert their original food-plant for 

 allied vegetation, useful or otherwise, and therefore the introduction 

 was not carried out, especially as this fly would not exterminate the 

 existing lantana scrub, even if it destroyed a large percentage of the 

 seeds. 



Although there is no record of the lantana fly ever having been 

 introduced artificially into New South Wales, early in May 1919 the 

 existence of the true lantana fly or of a closely alhed species was 

 recorded, and it is now found to be checking the spread of the plant in 

 many localities. Eggs are laid in the immature berries and the larvae 

 feed on the pulp, afterwards eating out the seed and pupating in the 

 seed cavity or in the pulp, and thus destroying the fertility of the seed. 



The New South Wales species has not been compared with that 

 occurring in Hawaii and therefore its determination is doubtful, but 

 from a superficial examination it agrees with the fly originally 

 described as Agromyza lantanae. 



Davis (J. J.). Miscellaneous Aphid Notes. 1. — Canad. Entom., London, 

 'Ont. li, no. 10, October 1919, pp. 228-234, 1 plate, 5 figs. 



The species dealt with include : Aphis setariae, Thos., for which a 

 new genus, Heferoneura, is erected, found on maize, sugar-cane, Eragros- 

 tis sp., Sorghastrum nutans, Panicum capillare, Paspalmn dilatatum 

 and Bermuda grass {Cynodon dactylon) in various States in America. 

 Aphis scofti, Sand., A. prunicoleus, Ashm., and A. bituberculata, Wils., 

 are synonyms of this species. It is suggested that the name 

 A. heradeUa should be substituted for A. heradii, Cowen, preoccupied 

 by A. heracJei, Koch. A. rociadae, CklL, which is redescribed, is 

 recorded on Delphinium tricorne in Indiana, and on larkspur in 

 Montana. 



The new species described include : A. cuscutae taken on dodder 

 (Cuscuta epithymum) growing among lucerne in Utah, Lysiphlehus 

 (Aphidius) testaceipes, Cress., and Syrphus opinotor, 0. S., being reared 

 from it ; Macrosiphum ribiellum, previously erroneously recorded as 

 M. cynosbati, Oestl, taken on Ribes, the latter being taken on flowering 

 currant (Ribes aureum). 



A. houghtonensis is probably a synonym of A. cynosbati, but further 

 observations are necessary to determine this question. Examination 

 of the type of Siphonophora achyrantes, Mon., shows this species to be 

 identical with Myzus persicae, Sulz. 



Davidson (W. M.). U.S. Bur. Entom. Notes on AUograjM fracta, 

 O.S. (Diptera: Syrphidae). — Canad. Entom., London, Ont. li, no. 10, 

 October 1919, pp. 235-239, 1 fig. 



The Syrphids collected in the Imperial Valley of Southern California 

 include : Mewgrapta geminata. Say ; M. marginata, Say ; Ceria sp. 



