426 



SvvENK (M. H.). The Harlequin Cabbage Bug.— Nebraska State Ent., 

 Lincoln, Bull. 10, 24th July 192t), 3 pp., 2 figs. [Received 

 6th July 1921.] 



.Serious injury was caused to cabbage and other cruciferous crops in 

 Nebraska in 1920 by Murgantia histrionica. Its life-history is briefly 

 ■outlined and remedial measures are advocated [R.A.E., A, v, 388]. 

 A 10 per cent, kerosene emulsion will destroy the nymphs ; against 

 the adults a spray consisting of 1 U.S. pt. nicotine sulphate to 

 25 U.S. gals, of water (1 to 200) and 4 lb. of soap may produce good 

 results. 



Beeson (C. F. C.) . The Food Plants of Indian Forest Insects, Part vi. — 



Ind. Forester, Allahabad, xlvii, no. 6, June 1921, pp. 247-252. 



This continuation of lists previously noticed [R.A.E., A, ix, 187] 

 deals with the Scarabaeids : — Heterorrhina mutabilis, Hope, on 

 Glochidion sp. ; Protaetia neglecta, Hope, on Mai lotus philippinensis 

 and Cedrus deodara ; Oryctes rhinoceros, L., on Borassus flahelliformis, 

 Cocos nucifera, Oreodoxa regia, Phoenix sylvestris and other palms ; 

 Xylotrupes gideon, L., on Poinciana regia ; Apogonia clypeata, Moser, 

 on teak ; A. granum, Burm., on teak ; Autoserica insanabilis, 

 Brenske, on teak. Citrus medica and sugar-cane ; Brahmina coriacea, 

 Hope, on Desmodium tiliaefoliutn, Ficns carica, pear, apple, Spiraea 

 sorbifolia and Vitis sp. ; Holotrichia intertnedia, Brenske, on Crypto- 

 meria japonica ; H. longipennis, Blanch., on Quercus incana and 

 Rubus lasiocarpus ; H. problematica, Brenske, on Eugenia jambolana, 

 Shorea robusta and Terminalia belerica ; H. tuberculata, Moser, on 

 teak ; Lepidiota bimaculata, Saund., on Shorea robusta ; Leucopholis 

 pingiiis, Burm., on Erythrina sp., Cinnamormm zeylanicum, Coffea 

 robusta and Hevea braziliensis ; Adoreius bimarginatus, Ohaus, on 

 Bombax malabaricum ; A. caliginosus, Burm., on Dalbergia sissoo ; 

 A. cpipleuralis, Arrow, on teak; Anomala dalbergiae, Arrow, on 

 Dalbergia latifola ; A. dimidiata, Hope, on Berberis sp., Crataegus sp., 

 Butea frondosa, pear, apple, and Rubus ellipticus ; and^. Hneatopennis, 

 Blanch., on plum, Aesculus indica ^cndQuercus sp. 



Stewart (F. H.). The Anatomy and Biology o£ the Parasitic 



Aphelenchi. — Parasitology, Cambridge, xiii, no. 2, June 1921, 

 pp. 160-179, 1 plate, 32 figs. 



The species dealt with are : Aphelenchus fragariae, R. B., A. olesistus, 

 R. B., and A. phyllophagus, sp. n. The first of these Nematodes 

 causes the disease known as strawberry bunch, the other two cause 

 leaf disease in flowering plants and ferns. The definitive habitat of 

 A. fragariae is in the stem and leaves of the strawberry plant, whilst 

 that of A. olesistus and A. phyllophagus is in the mesophyll spaces 

 of the leaves of many plants. Nutrition and reproduction are most 

 actively carried on in this situation, many generations succeeding 

 each other. As the diseased leaves fall, the adults and larvae reach 

 the soil and enter upon the resting stage, the adults surviving in a 

 partly dried dormant condition on the surface of the soil for prolonged 

 periods. When revived by moisture and attracted to a suitable 

 plant they migrate to it and may live for some time as ectoparasites 

 in the leaf axils, etc., before entering the definitive habitat. Eggs 

 may be laid in the leaf axil, the larvae migrating to the definitive 



