340 THE CANADIAN ENTOMOLOGIST. 



25. Greenish-ochre, a black subdorsal line ; on 



Alniis : Hemichroa americana. 



Bluish-green, spotted with yellow and black ; on 



honeysuckle Zarcea inflata. 



Whitish, faintly orange banded; on Sambucus 61. 



Like the preceding, but also black spotted 6L. 



Green or colourless, often with minute white or black points — 



On Rumex ; dorsum green with dark longitudinal 



shades Strongylogaster abnormis. 



On Rosa ; green Emphytns cindipes. 



On Betula ; subdorsal yellow fat-granules . . Tetithredo Cressoni. 



On Spiraea ; a yellow subdorsal fat-line, no white points . . . .^T- 



On Viburnum ; with minute black points 6C. 



On Ilex ; colourless, whitish 6F. 



On Fragaria (strawberry) ; head \m.VL\z.z\AdXt.. Monostegia ignota. 



Like the preceding, but the head black 



spotted Harpiphorus maculatus. 



26. Mining in leaves of Alnus Fenusa varipes. 



Mining in leaves of Quercus Femisa curia. 



27. Sitting flat on the surface of a leaf or curled spirally 28 



Sitting on the edge of a leaf 33 



Forming galls on Salix 45 



28. With stiff white hairs 29 



With pilose coating 30 



Pale, with large elevated subventral black patches ; on Salix ^J. 



Smooth, greenish 31 



Colourless, the abdominal feet small 32 



29. Anal plate black A^ 



, . ,, ( Trichiocampus gregarius. 



Anal plate yellow \^... ^ * . *. ,. 



(. Trichiocampus vimmalis. 



30. Dorsum olivaceous-black Cladius solitaris. 



Immaculate green ; on Rosa Cladius pect'micornis. 



With white ad-dorsal and stigmatal lines ; on Salix 4L. 



31. Slightly pruinose j on Amelanchier and Vxnwn?,... Nemai us t/ioracicus. 

 With subdorsal green fat-granules ; on Betula .... Nanatus unicolor. 

 Curls spirally ; on Populus 2G. 



32. Head pale ; on the young leaves of Quercus. .Acordulecera dor sails. 

 Head black ; on the young leaves of Carya 6U. 



