20 A MANUAL OF DANGEEOUS INSECTS. 



Blastodacua Iiellerella Dup. 

 (Pth ^foth. Elachistidae; Lepidoptera.) 



This moth is similar to B. vmolentella in habits and description, except that head of 

 adult is white. (See plate vii, fig. 1.) 

 Theobald, F. V. Insect Pests of Fruit, 1909, p. 92. 



Chloroclystis rectangulata Linnscus. 



(Green Pug Moth. Geometridse; Lepidoptera.) 



Host ^pple. 



Injury. Feeds on blossoms and young leaves. Not serious. 



Description and biology: Adult wing expanse 18 mm.; forewings deep green with 

 dark brown and gray bands; liind wings with similar greenish tinge. Flies in May, 

 June, and July. Pupa thorax and wing cases yellow; caudal end deep red, tinged 

 with olive. Larva pale yellowish green, with rusty red line down back; division 

 between segments reddish; a line at sides yellowish green. Larvae appear in early 

 spring. Pupate in earthen cocoon on ground. Eggs deposited on trees in early sum- 

 mer, where they remain over winter. 



Distribution: Europe, England. 

 Theobald, F. V. Insect Pests of Fruit, 1909, p. 68. 



Charagia llgnivora Lewin. 

 (Green Hanging Moth of the Apple. Hepialidae; Lepidoptera.) 



Hosts: Apple, acacia, aster, eucalyptus, etc. 



Injury: Injuries confined largely to native trees; sometimes destructive to apple. 

 Bores in wood. 



Description and biology: Adult male forewings pea-green, with silvery white mark- 

 ings; hind winds pale green; female forewings darker green than those of male, with 

 purplish bands; hind wings orange pink. Larva pale pink, yellow or purplish yellow, 

 head dark -brown. A "swelling" sawdust covering covers burrow of larva. Eggs 

 deposited on bark of tree. (See plate viii.) 



Distribution: Victoria. 

 French, C. Handbook of Destructive Insects of Victoria, 1909, pt. 4, p. 77. 



^ .\rgyresthia conjugeila Zeller. 

 . (Apple Moth. H}'ponomeutid9e ; Lepidoptera.) 



Hosts: Apple, cherry, plum, whortleberry, mountain ash, service berry^ 



Injury: Serious to fruit. 



Description and biology: Moth with front wings violet gray, sprinkled with lighter, 

 with yellowish white stripe on the inner margin, and a whitish spot near apex. Larva 

 with biack head, body at first whitish, later fleshy red with many dark brown setiger- 

 ous spots; 7 mm. long. Breeds in fruits. Pupates outside of the fruit in cocoons. (See 

 plate VII, fig. 3.) 



Distribution: Europe, British Columbia, Japan. 

 SoRAUER, p. Handbuch der Pflan^enkrankheiten, 3d ed., 1913, vol. 3, pp. 269-270, 



figs. 196-197. 

 Theobald, F. V. Insect Pests of Fruit, 1909. p. 193. 

 Report No. 6. Hokaido Agric. Exp. Sta.. Sapporo. Japan, March, 1916. Plates 1, 3. 



