March 1897] 
Dyar: Larvae of Saw-Flies. 
19 
ish or yellow, edged with black. Subventral ridges oblique, prominent, 
pale, but margined with black and bearing many setae. Anal plate ob¬ 
scure, blackish. Between- the setae are numerous small black dots bear¬ 
ing still more minute setae. A row of four ventral setiferous black spots 
on each segment anterior to the legs and six medio-ventral segmentary 
round orange spots posterior to the feet on joints 6 to io. Forms a 
reticular cocoon of yellow silk. 
Macrophya bilineata MacGillivray. 
Head whitish, eye black, a large black patch on vertex, neat, al¬ 
most pyriform. Body segments 7-annulated with minute black setae on 
the second and fourth annulets. Body tapering a little posteriorly, 
straight or curled spirally, feet on joints 6 to 13. Whitish, translucent, 
not shining, appearing green from the food except subventrally; a faint 
black lateral shade bounding the apparently green area; a single small 
sooty black suranal spot. Tracheae distinct; thoracic feet clear with 
brown tips. Width of head 1.8 mm. 
Ultimate stage. —Annulate, slightly shining, all immaculate, waxy, 
whitish emerald green. Head slightly testaceous, eye black, no marks. 
Enters the ground. 
Food-plants.— Viburnum op ulus and V. cassinoides. 
Macrophya mixta MacGillivray. 
Head reddish on vertex, eye black, no marks; width 1.8 mm. 
Body waxy greenish, 7-annulate, no marks. Another example had a 
dusky lateral shade defining the dorsal color which appears darker than 
the subventral region on account of the food showing by transparency. 
Ultimate stage like the preceding species. 
Food-plant.— Viburnum opulus. 
These two species of Macrophya occurred together and only one 
example of each was bred. I suspect that they are not specifically 
distinct. 
Tenth redo remota MacGillivray. 
Resembles T. cressoni, but less yellowish green, the skin being 
colorless and only green from the food; no subdorsal band of fat, at 
most only a few scattered granules. Widths of head observed .6, .8, 
1.4, 1.8, 2.2 mm. 
The egg forms a regular elliptical swelling near the middle of a 
leaf, 2 x 1.5 mm., under the lower epidermis, the saw-cut on the upper 
side. 
Larva. —Head large, prominent, with grooves before the vertices 
