171 



5 per cent, of the coconut palms were totally stripped and about 10 per 

 cent, partly so. All sucrier bananas were completely destroyed, 

 but silk bananas only slightly. Cassava, maize and sugar-cane were 

 eaten to the ground. Cacao trees were not touched. So far as can 

 be judged, the danger of an invasion of Trinidad is over until February. 



Ukich (F. W.). Insects affecting the cotton plant in Trinidad. — Bull. 



Dept. Agric. Trinidad & Tobago, Port-of -Spain, xv, no. 1, 1916, 



pp. 18-19. 

 The worst pests of cotton in Trinidad are the cotton-stainers, 

 Dysdercus howardi, Balloa, and D. howardi var. minor, Ballou. They 

 are occasionally parasitised by a Tachinid, a species of Trichopoda. 

 Hand-picking, trapping and the destruction of food-plants growing 

 wild, viz., Malachra capitata, Sida gloineraia, Eriodendron anfractuosum 

 (silk cotton), are the controls advised. A Coreid bug, Hypselonotus 

 Julvus, De Geer, is not a pest, but comes to cotton during the flowering 

 period. It is mostly found on Malachra capitata. Another Coreid, 

 Sphidyrtus interrnedius, Stal, is found on cotton about the flowering 

 period, but occurs also on Cordia cylindrostachya (black sage). The 

 Pyrrhocorid, Largus lunatus, F., is not a pest of cotton ; it also occurs 

 on Sida glomerata. The Pentatomid, Sphyrocoris obliquus, Germ., is 

 found in the young and adult stages in old cotton bolls left over 

 in the field, but does not seem to attack fresh tissues. Its eggs are 

 parasitised by a Proctotrupid, Trissolcus trinidadensis, Cwfd. Alabama 

 urgillacea (cotton worm) is usually kept in check by natural enemies 

 such as Polistes canadensis (Jack Spaniard), a Tachinid, Phorocera sp., 

 etc., but after exceptionally dry seasons there are large outbreaks, 

 when dusting or spraying with arsenicals should be resorted to. The 

 cotton aphis. Aphis sp., is preyed upon by larvae of Syrphid flies and 

 the Coccinellids, Megista maculata, de G., Cycloneda sanguinea, L., and 

 Scymnus auritulus, Muls. Hemichionaspis minor, Mask, (snowy scale) 

 and Saissetia nigra, Nietn. (black scale) are not serious pests. The 

 former is parasitised by the Chalcid, Aspidioiiphagus citrinus, while 

 the latter is preyed upon by the Coccinellid, Azya orbigera, Muls., and 

 is also destroyed by the Encyrtid parasite, Lecaniobius cockerelli, 

 Ashm. 



Theobald (F. V.). Notes on Aphididae found in Ants' Nests. — 



Entomologist, London, xlix, no. 634, March 1916, pp. 49-52, 2 figs. 



The collection of Aphids, here recorded, was obtained from ants 

 nests near Porlock, Somerset and includes : — Macrosiphum myrme- 

 cophilum, sp. n. ; Hyalopteroides pallida, gen. et sp. n. ; Tycheoides 

 eragrostidis. Pass. ; T. setulosa. Pass. ; T. selariae. Pass. ; Tratna 

 troglodytes, Heyd. ; T. radicis, Kalt. ; Forda formicaria, Heyd. ; 

 F. viridana, Buck. ; Tetraneura ulmi, L. ; Aphis plantaginis, Schr. ; 

 and Geoica carnosa, Buck. 



Fuller (C). Observations on some South African Termites. — Ann. 

 Natal Museum, London, iii, no. 2, October 1915, pp. 329-504, 

 16 figs., 11 plates. [Received 4th March 1916.] 



Most South African termites are subterranean in habit and are 

 probably abundant in the soil in many parts of the country. In the 

 (C259) • b2 



