191G] ECONOMIC ZOOLOGY — ENTOMOLOGY. 365 



after as the first treatment had disappeared from the upper surface of the 

 foliage. The mixtures are readily applied with a powder gun and sliould coat 

 thoroughly all parts of the plants, especially the buds. For the 1 : 5 mixture 

 the cost should not exceed $8 and for the 1 : 1, $16 an acre, and in practical 

 work this charge will probably prove to be materially less. 



Some injurious Indian weevils (Curculionidse), G. A. K. Marshall {Bui. 

 Ent. Research, 5 {1915), No. 4, pp. 377-380, figs. 4; 6 {1916), No. 4, pp. 365-373, 

 figs. 5). — The species described in the first paper as new to science are Phyto- 

 scaphus dissimilis, found feeding on young tea shoots, and Corigetus bidentulus, 

 a serious pest of tea, in Assam; and RhynchxTnus {OrcJiestcs) mangiferce, the 

 larvte of which bore in the leaves of the maugo tree, and Pachytychius mungonis, 

 a cowpea {Phaseolus mnngo) pest, in Madras. 



The new species described in the second part are Emperorrhinus defoUator 

 n. g. and n. sp., found to defoliate the alder tree {Alnus nitida) and fruit 

 trees; Coniatus indicus n. sp., which attacks tamarisk {TamariJ- indica) ; 

 Ceuthorrhynchus portulacw n. sp., the larvae of which mine the leaves of 

 purslane {Portulaca oleracea) cultivated as a vegetable; Baris portulacce 

 n. sp., found boring in the stems of purslane; Aihesapeuta oryzw n. sp., a serious 

 pest of rice ; and Acythopcus citruUi n. sp., a pest of watermelons. 



[Mouth parts of the honeybee], E. R. Root {Jour. Heredity, 7 {1916). No. 

 1, pp. 46, .'/7, fig. 1). — Examinations of a colony of bees that worked in red clover 

 in full bloom showed that the tongues of this particular colony measured 0.23 

 and 0.24 in., whereas the tongues of normal bees measured only 0.16 and 

 0.17 in. 



Natural swarming' of bees and how to prevent it, M. Pettit {Ontario Dept. 

 Agr. Bui. 233 {1915), pp. 15, figs. 8). — Practical information for the beekeeper. 



A monograph of the Formicidas of South Africa (Ponerinae, Dorylinse), 

 G. Arnold {Ann. So. African Mus., 14 {1915), pt. 1, pp. 159, pi. 1, figs. 8). — Two 

 of the five subfamilies of Formicidse are here dealt with. 



It is pointed out that in South Africa the Ponerinae comprise about 20 per 

 cent of the known ant fauna, and that since at least 80 per cent of their food 

 consists of termites they constitute one of the chief checks to these pests in 

 the Tropics. It is thought probable that all, or at least the majority, of the 

 species of the subfamily Dorylinse are carnivorous, although one species 

 (Dorylus orientaUs) has been shown to feed also upon tubers and the bark 

 of trees. Another species {D. fulvus rhodesiw) has apparently been found to 

 rttend membracid larvae feeding on the roots of maize. 



The acrobat ant, H. A. Ballou {Agr. News [Barbados], 14 {1915), No. 351, 

 p. 330). — An account of Cremastogaster sp., which is abundant in different parts 

 of Grenada and may become troublesome in cacao fields in that island. 



The control of ants which take away onion seed {Agr. Netvs [Barbados], 

 14 {1915), No. 354, p. 378). — A brief report of experiments conducted with a 

 view to preventing ants from removing onion seeds when planted and from 

 biting holes in the young shoots, as occurs in St. Vincent. In experiments con- 

 ducted the most satisfactory results were obtained through attracting the ants 

 to various baits and then killing them. 



Two new species of Arrhenophagus with remarks, A. A. Girault {Jour. 

 N. Y. Ent. Soc., 23 {1915), No. 4. pp. 241, 242). 



Notes on two South American parasitic Hymenoptera, A. A. Girault 

 {Entomologist, 48 {1915), No. 628, pp. 213, 214).—Baeus atiraticeps n. sp. is 

 recorded as having been reared in numbers from the egg sac of a spider at 

 Anna Regina, British Guiana. 



Three new British chalcidoid Hymenoptera, with notes. A, A. Girault 

 {Entomologist, 48 {1915), No. 628, pp. 217, 218) .—ApMdencyrtus aspidioti brit- 



