262 



into the fruit and the larvae burrow and feed on the interior causing 

 it to drop prematurely ; in order to pupate the larvae abandon the 

 fruit and enter the ground near the tree. The only fruit fly so far 

 recorded from Dominica is AnastrepJia acidusa, which appeared in 

 oranges, mangos and guavas in 1909. As a remedial measure a 

 poisoned bait spray consisting of a mixture of 2| lb. sugar, 3 to 5 oz. 

 lead arsenate and 4 gals, of water is suggested. This spray would only 

 be practicable on small, grafted mango or guava trees, when the 

 flies are abundant. 



Hood (J. D.). On some new Idolothripidae (Thysanoptera). — Insecuior 

 Inscitiae Menstnms, Washington, D.C., vii, no. 4-6, April-June 

 1919, pp. 66-74, 2 plates. 



The species dealt with are : — OjMhalmotlwi'ps pomeroyi, gen. et 

 sp. n., and Kleothrips atralus, sp. n., from East Africa ; Gigantothrips 

 crawfordi, sp. n., from the Philippine Islands; and Acanthmothrips 

 nigrodentatus, Karny, inhabiting galls on Planchonia valida in Java, 

 for which a new genus, Cercothrips, is erected. 



Hood (J. D.). On some new Thysanoptera from Southern India.— 



Insecuior Inscitiae Menstnms, Washington, D.C., vii, no. 4-6, 

 April-June 1919, pp. 90-103, 4 plates. 



The material dealt with in this paper was collected at Coimbatore, 

 and includes : — Scirtothrips dorsalis, sp. n. , on castor and chillies ; 

 Perissothrips parviceps, gen. et. sp. n. , on Ailanthus excelsa ; Rhipi- 

 phorothrips cnientatus, s^^. n., on grape vine and Careya arborea ; 

 Neoheegeria indica, sp. n., on Ailanthus excelsa; Arrhenothrij)s rama- 

 hrishnae, gen. et sp. n., on Mimusops elengi ; and Liothrips ordinarius, 

 sp. n., on Sesbania grandiflora. 



GuRNEY (W. B.)- Maize Pests. — Agric. Gaz. N.S.W.; Sydney, xxx 

 no. 2, 3rd February 1919, pp. 111-112. 



A cutworm is recorded as damaging maize and castor oil seedlings. 

 Experiments were made with four different mixtures for which the 

 formulae are given ; the most successful was made as foflows :■ — 

 24 lb. bran were mixed with 1 lb. of Paris green while dry ; 1 pint 

 of salt water (3 oz. salt to 3 quarts water) was then added to every 

 4 lb. of bran to make a slightly damp crumbly mash. After one 

 night's treatment with this, 79 per cent, of the caterpillars were killed. 

 The mash should be distributed in small handfuls at the base of each 

 cluster of seedlings late in the afternoon. The above formula mixed 

 with treacle and water is practically as effective, but seems to dry 

 more rapidly ; greater proportions of Paris green were less effective. 

 These quantities are sufficient for half an acre of maize. 



GuRNEY (W. B.). Control of Grasshopper (Locust) Swarms.— ^^nc. 



Gaz. N.S.W., Sydney, xxx, no. 2, 3rd February 1919, pp. 113-120, 



3 figs. 

 The grasshopper, Chortoicetes terminifera, Wlk., is generafly destruc- 

 tive for two successive seasons and then may not appear in large 

 numbers for from 6 to 10 years ; it is also known from Queensland, 



