186 THE CAN'ADIAN ENTOMOLOGIST 



and mouth black, the sutures around clypeus pale ; some short, pale 

 hairs; width, 1.4 mm. Body of nearly equal width, slightly largest at 

 anterior end ; thoracic feet small, abdominal ones well developed, present 

 on joints 6 to 13 (22 feet). Segments 6-annulate, rather sharply so, and 

 about as distinct as the segmental incisures. Colour slaty black dorsally, 

 not shining, smooth, the dorsal vessel showing darker ; below the spiracles 

 olive gray. Thoracic feet pale. On each segment, on 2nd annulet, a 

 transverse row of minute white points, with a second one on ist annulet 

 stigmatally ; a few less conspicuous ones on subventral ridge. 



Final stage. — Head blackish above, pale below ; eye in a black spot ; 

 mouth brownj antennas and palpi pointed, minutely brov/n ringed ; width, 

 1.4 mm. Body entirely dark olive-gray, rather bluish, slaty, the segments 

 neatly 6-annulate, not shining, evenly minutely granular. Feet trans- 

 parent, spiracles in paler areas. No white points or tubercles. 



The larvcc do not feed in this stage, but seek for decayed or soft wood 

 in which they bore a gallery to serve as a place for pupation. 



Larvge abundant on cultivated pansies at Plattsburg, N. Y., in Septem- 

 ber, the flies emerging the following April. 

 Emphytiis cinctipes, Norton. 

 (The rare rose saw-Hy.) 



Eating the whole leaf and resting on the back, curled spirally, with the 

 anal end on top. Head well rounded, fiat over clypeus, pale brown, the 

 ocellus in a round black spot ; mouth blackish, not shining ; a blackish 

 longitudinal stripe on vertex of head. Width, 1.5 mm. Abdominal 

 feet present on joints 6-12 and 13 (22 feet) : thoracic feet large, visible 

 from the dorsal aspect, spreading, but not greatly so. Rather dark green 

 dorsally and in spots along the bases of the legs ; whitish subtranslucent 

 subventrally and ventrally and on the feet. Minute pointed, conical, 

 white dots arranged in three transverse rows on each segment on the 

 first, second and fourth annulets ; on the first annulet, two each side sub- 

 dorsally ; on the second and fourth annulets, two subdorsally and two 

 laterally and others substigmatally ; but these last are very inconspicuous 

 on the pale ground colour. Tracheae showing by transparency as a white 

 cord. The green colour becomes darker posteriorly and is interrupted at 

 joint 12, showing that it is partly due to the food in the alimentary canal. 



Final stage. — Head shining, slightly punctured, pale straw-yellow, 

 with large black eye spot; width, 1.5 mm. Body smooth, 6-annulate, 

 without any tubercles, coloured as before, but paler. Dorsal colour bluish- 



