38 



A MANUAL OF DANGEROUS INSECTS. 



B. OTHER IMPORTANT BEAX INSECTS. 



COLEOPTERA. 

 Chrysomelidie. 



Cerotoma dcnticornis Olivier, leaf beetle; Porto Rico (see text fig. 24). 

 Curculionidse: 



Sitona lineata Linnceus,* S. flavescens Marsh.; Europe. (See Clover.) 

 Hypera variabilis Herbst; Europe. (See Clover.) 



„ .. . DIPTERA. 



Trypetidae. 



Dacus cucurbitae Coquillett; India, Ceylon, Hawaii; attacks fruit. (See Cucurbits). 

 Ceratitis capitata Wiedemann, attacks Phaseolus vulgaris. (See Fruit.) 

 Bactrocera cucurbitx. 

 Bactrocera tryoni. 



Anthomyiidae. 



=(c ChoTlophila (Pegomya) fusciceps Zetterstedt. (See Corn.) 



Agroniyzidae. 



Agromyza fabalis Jack; bean .stem maggot, Rhodesia, mines stems of cowpeas, French beans, kidney 



and haricot beans. 



LEPIDOPTERA. 

 Hespcridae. 



^Eudamus proteus Linnaeus, bean leaf roller; Porto Rico; Southern States. 



Fig. 21.— Bean leaf-beetle (Cerotoma denticornis): Adults, two varieties. (Chittenden.) 



BEECH. 

 (Fagus spp. Family Fagaceae.) 



This genus contains tall, hardy, deciduous trees favored for parks. The wood is 

 valuable and the nuts edible. The nuts also yield an oil used Jor cooking. Propa- 

 gated from seed. Valuable for nursery stock. 



A. BEECH PESTS LIKELY TO BE IMPORTED. 



Laspeyresla grossana Haworth. (Carpocapsa.) 

 (Beech Tortrix. Tortricidae; Lepidoptera.) 



Hosts: Hazelnut, walnut, oak, beech, chestnut. 



Injury: Seldom serious. Attacks fruits of its hosts. 



Description and biology: Adult, forewing bluish ash-gray; translucent spot brownish 

 gold streaked with black, brown at base, bounded by triangular spots. Flies in 

 June and July (Germany). Pupates in spring in the earth. Larva attacks nuts in 

 late summer, winters in earth. 



Distribution: Europe. 



SoRAUER, P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 276. 



