INSECT NOTES. 43 



EXPLANATION OF PLATES. 



Plate 

 10-12 San Jose or Pernicious scale (Aspidiotus perniciosus) . 

 Page 28. 



10 Active young, greatly enlarged (After Felt). 



11 Young scale in black stage, greatly enlarged (After Felt). 



12 Group of adult scales, enlarged (After Felt). 



13 Wing of Crane fly (Trichocera regalationis). Page 34. 



14 Wing of Crane fly (Cfcnophora apicata). Page 32. 



15 Sap beetle (Carpophilus Jicinipfcriis) , greatly enlarged. 



Page 39. 



16 Bumble flower beetle {Euphoria inda). Twice natural 



size. Page 39. 



Plate 



17 Leaf of the Alder showing secretion of Downy Psyllid. 



Page 29. 



18 Apple leaf folded by apple leaf sewer. Page 26. 



19 Birch leaf showing work of Bncculatrix canadensiscUa. 



Page 24. 



Plate 

 All details are of the larvae unless otherwise noted, an = 

 antenna; ep =r epipharynx ; ep. c ^ comb of epipharynx ; fl =: 

 flap covering spiracle ; hyp = hypopharynx ; Im = labium ; Ir r= 

 labrum ; mn = mandible ; mx ^ maxilla ; sp := spiracle. 



Carpopliiliis hcuiiptcnis. Page 39. 



20 Mouth parts ; Dorsal aspect, x 63. 



21 Labium and maxilla; Ventral aspect, x 63. 



22 Labium; Ventral aspect, x 175. 



23 Caudal end; Dorsal aspect, x 40. 



Achatodcs zcac. Page 23. 



24 Mouth parts ; Dorsal aspect, x 20. 



25 Maxilla, x 20. 



26 Anal plate ; Dorsal aspect, x 10. 



27 Apex of abdomen of pupa, x 40. 



