APPLE INSECTS. 



23 



Hoplocampa testudinea Klug. ^ 



(Apple Sawfly. Tenthredinidse ; Hymenoptera.) 



Host: Apple. 



Injury: Local. Damages fruit. 



Description and biology: Adult, female, length 6-S mm.; reddish yellow, with a 

 black patch on the head, another on thorax and on dorsum of abdomen; head and 

 mesothorax punctured; antennae dusky in middle: male, slightly smaller. First 

 brood occurs about apple-blossom time; second brood occurs in July. Pupate in soil. 

 Larva, length 12 mm., creamy white; grub-like with brown head and a double, 

 black chitinous plate on dorsum of anal segment; eats out cavities in interior of 

 fruit. Many larvae migrate from one apple to another. Larval period in first brood 

 4 or 5 weeks. Winters as larva in second brood. Eggs are deposited in blossom. 

 This stage varies from 8 to 14 days. (See text fig. 11.) 



Distribution: Europe. 

 Theobald, F. V. Insect Pests of Fruit, 1909, p. 122. 



B. IMPORTANT APPLE INSECTS. 



Coccidse: HEMIPTERA. 



Armored— 

 Aspidiotus (Diaspidiotus) africanus Marlatt; South Africa. 



Diaspis pyri Colv^e; Spain, Belgium, Denmark, France, Italy, Croatia, Austria, Switzerland, Tyrol. 



if-Epi diaspis piricola Del Guercio: 



France, Russia, Italy. (See Pear.) 



:Jf:Leucaspis japonica Cockerell; Japan. 



Parlatoria affinis Newstead; Algeria, 



Egypt. 

 Parlatoria calianthina Berlese and 

 Leonardi; Italy, Spain, Victoria, 

 and New South Wales. 

 ^Parlatoria pyri Marlatt; China; scale 

 of female 1-1.25 mm. in length, 

 oval; larval exuvia, purplish green, 

 second exuvium dark olive, almost 

 black. Apparently a dangerous 

 pest. 

 Unarmored— 



Coccus hoferi King; Switzerland. 

 ■^Lecaniumhituherculatum Targioni- 

 Tozzetti; England, France, Swe- 

 den, Italy, Germany. 

 Lecanium caprcx Linnajus; Europe, 



Nova Scotia. 

 Lecanium glandi Kuwana; Japan. 

 ifi Lecanium persicx Fabricius; Europe, 

 Australia, Canada. 

 Lecanium pyri Schrank; Europe, 



Prince Edwards Island. 

 Lecanium rugosum Signoret; France, 



Germany. 

 Lecanium variegatumGoethe; Europe. 

 Lecanium vini Bouchd; Europe. 

 Pseudococcus glaucus Maskell; New 

 Zealand. 

 Tingltidae. 



Stephanitis pyri Fabricius; Europe. (SeeJPear.) 



COLEOPTERA. 

 Cerambycidse. 



Cerambyx scopolii Fuessly; Europe; borer. 



Saperda scalaris Linnaeus; Europe; borer. 



Liopus nebulosus Linnaeus; Europe; borer. 



Curculionidae. 



Magdalis cerasi Liimaeus and M. pruni Linnaeus; Europe; breed under bark. 



Anthonomus incurvus Panzer, A. pedicularius Linnaeus, and A. pyri Boheman; bud weevils; Europe, 



Fig. 12.— The apple clearwing (Sesia myopseformis). 

 cocoon, larva, and bormgs. (Reichelt.) 



Moth, 



