456 



show zig-zag lines, due to the movements of the mites escaping from 

 the light, and small conical heaps of such flour will in a short time 

 change their form, owing to their constant movements. 



The tables given include those for the identification of the 

 Curculionid and Lepidopterous pests and their larvae and for 

 identifying them in accordance with the peculiar form of damage or 

 from their excreta. 



Waterston (J.). Notes on Coccid-infestlng Chalcidoidea.— iii. — Bull. 



Entom. Research, London, vii, no. 4, May 1917, pp. 311-325. 



This paper, in continuation of a previous one [see this Review, 

 Ser. A, V, p. 165], deals mainly with species bred on the West Coast 

 of Africa. The following are described : Coccidoxenus distinguendus, 

 sp. n., reared from Lecanium sp. on coffee in the Gold Coast ; 

 Aethognathus afer, Silv., from Stictococcifs diversiseta, Silv., in the 

 Gold Coast; A. afer, var. cavilabris, n., from Stidococcus dimorphus 

 in Uganda ; Eusemion cornigerum, Walk., from Parafairmairia gracilis 

 in Britain ; Habrolepis apicalis, sp. n. , from Chionaspis minor in the 

 Gold Coast ; Aspidiotipkagus ciirinus, Craw, from Chionaspis grayninis 

 in Ceylon, from Aspidiotus rapax (camelliae) in Rhodesia and from 

 Chionaspis minor in the Gold Coast ; Eriaporus laticeps, sp. n., from 

 a scale on cacao in the Gold Coast. 



Theobald (F. V.). The Aphid of Tea, Coffee and Cacao {Toxoptera 

 coffeae, Nietner). — Bull. Entom. Research, London, vii, no, 4, May 

 1917, pp. 337-342, 3 figs. 



Toxoptera coffeae, Nietn., of which Ceylonia theaecola, Buckt., and 

 Toxoptera theobromae, Schout., are treated as synonyms, is described 

 from West Indian, Ceylon and African material taken on tea, coffee 

 and cacao. 



Newstead (R.). Observations on Scale-Insects (Coccidae).-iii. — Bull. 

 Entom. Research, London, vii, no. 4, May 1917, pp. 343-380, 

 2 plates, 27 figs. 



The following new species are described : Platysaissetia carpenteri, 

 from Uganda on fig ; P. /eroac, from Southern Nigeria ; Akermes ander- 

 soni, from British E. Africa, on orange leaves ; A. quinquepori, from 

 British Guiana, on Microlobinm acaciaefolium ; Lecanium hirsutum, 

 from East Africa ; L. pseudoiessellatum, from Trinidad, on 

 Chrysobalanus pellocarpus ; L. wardi, from British Guiana, on leaves 

 of Malacca apple, many individuals being infested with a fungus ; 

 L. aequale, from British Guiana, on Avicennia nitida ; L. acaciae, from 

 British E. Africa, on Acacia melanoxylon and Albizzia moluccana ; 

 L. ader^i, from Zanzibar, on mango leaves ; L. cajani, from Southern 

 Nigeria, on pigeon-pea ; Saissetia {Lecanium) Jiurae, from British 

 Guiana, on Hura crepitans : 8. (L.) persimile, from British E. Africa, 

 on peach stems; S. (L.) subhemisphaericum, from Uganda and the 

 Gold Coast, on coffee ; S. (L.) signatum., from Uganda, on guava ; 

 /S. (L.) scutaium, from British Guiana, on Mimusops globusa ; the 

 colonies of the female Coccids of this species were attended by a small 

 black ant which had constructed a rough covering over them ; 



