631 



the larvae will be caught in the straw before they reach the ground. 

 When a small area is under cultivation the sowing of oats or root crops 

 would either kill the insect or cause it to return to wild grasses. Natural 

 enemies appear to be very few, the pest being controlled more by the 

 supply of food than by parasites. Ati undescribed Chalcid has however 

 been reared from the larva. 



Patch (Edith M.). The Pond-Lily Aphid as a Plum Pest. — Sciencs, 

 Philadelphia, xlii, no. 1074, 30th July 1915, p. 164. 



Rhopalosiphum nymphaeae, L., a well-known pest of water plants, 

 also attacks the plum, living on the shoots and ventral surfaces of the 

 leaves. Usually, no deformation of the leaf results, but there is a 

 tendency to feed also on the young fruit. The spring migrants from 

 the plum pass to Alisnia plantago-aquatim (water-plantain), Sagittaria 

 lufifolia (arrow-head), and Typha latifolia (bulrush). Return to 

 the plum for the deposition of over-wintering eggs takes place in 

 autumn. This species has possibly been recorded under a more recent 

 name as a European plum pest [see below p. 639]. 



Hood (J. D.) & Williams (C. B.). New Thysanoptsra from Florida and 

 Louisiana. — Jl. New York Entoni. Soc, Lancaster, Pa, xxiii, no. 2. 

 June 1915, pp. 121-133, 4 plates. 



The following new genera and species of Thysanoptera were collected 

 during November and December 1914 in Florida and Louisiana : 

 Breqmatothrips gracilis, sp. n., found on grass ; Merothrips fusciceps, 

 sp. n., from Oriental bamboos ; Haplothrips (?) bellis, sp. n., from grass 

 and rushes ; Zygothrips bicolor, sp. n., taken on an undetermined 

 plant, possibly Mimosa, from Spanish moss on pine and from bamboo 

 and rushes ; Z. pnlhis, sp. n., from bamboo, sago palm and live oak 

 covered with Spanish moss ; Trickofhrips tnarginalis, sp. n., from 

 under the bark of willow ; T. terminalis, sp. n., from the stump of an 

 undetermined tree in a damp situation ; Symphyothrips punctatus, 

 gen. et sp. n., from an orange tree ; Gnophothrips megaceps, gen. et 

 sp. n., from a tree stump ; Barythrips sculpticauda, gen. et sp. n., 

 from a pine stump and Polyphemothrips tibialis, sp. n., from privet. 



Destruccion de Plagas. [Pest destruction.] — 5oZ. Minist. Agric, 

 Buenos Aires, xix, no. 3-4, March-April 1915, pp. 141-143, 

 [Received 24th August 1915.] 



In Eebruaiy 1915, 34,797,762 kilos of locusts were destroyed in the 

 Argentine, including 34,755,157 kilos of hoppers, no eggs being 

 destroyed. In March, the total amounted to 654,880 kilos, including 

 17,480 kilos of eggs, no winged individuals being destroyed. The 

 total number of ant-hills destroyed in February amounted to 976, 

 the corresponding figure for March being 2,302. 



