20 
Journal New York Entomological Society. [Voi.v. 
of the lobes; pale below, orange above, shining, eye black, no marks. 
Joint 2 small, the body only slightly tapering; feet on joints 6 to 13. 
Whitish translucent, not shining, food green the whole length, plainly 
visible. Thorax scarcely enlarged; segments finely and neatly 7-annu- 
late, the incisures more distinct, slightly folded. Under a lens white 
points are present on the second and fourth annulets. No marks; 
thoracic feet colorless. Tracheal line not very distinct. 
Ultimate stage. —Head shining whitish testaceous, eye black; body 
shining, pale clear honey yellow, rather whitish, somewhat opaque, 
neatly annulate; no marks. 
Food-plant. —Yellow birch. 
Taxonus dubitatus Norton. 
Stage before last.— Head pale yellowish, a trace of brownish from 
minute dottings; a very small brown dot in apex of clypeus and behind 
eye, eye in a black spot. Body sordid waxy, green from food, anal 
end dark; segments 7-annulate, first and second annulets largest. No¬ 
marks except the small black spiracles, antennas, palpi, jaws and claws 
of thoracic feet. 
Last stage. —Head pale brownish, a big black patch behind the 
eye. Body without marks except a large black subdorsal patch on joint 
13 anterior to the anal flap; green from food, faintly yellowish, paler 
subventrally. Others have more spots on the head. 
Foad-plant .— Onoclea, sp. Occurred around New York City. 
Taxonus albidopictus Norton. 
Head shining pale brownish, a large triangular black patch on the 
vertex connects with a like one on the clypeus; another patch at its 
apex on the black eye reaching back to the occiput; these three patches 
have diffuse edges and the vertical and lateral ones are connected by a 
dark cloud; mouth brown; width 1.2 mm. Feet on joints 6 to 13; 
segments 7-annulate, rather unequal, annulet 2 large; slightly shining, 
smooth ; dorsum to spiracles dark green, under the lens obscurely longi¬ 
tudinally streaked and divided by the pale dorsal vessel, especially on 
the thorax; on joint 13 a large round smoky black lateral patch; joint 
2 anteriorly, subventral region and feet translucent whitish, thoracic 
feet black marked; spiracles black, tracheal line white. Bored in 
wood. Found on Onoclea sensibilis at Rouse’s Point, N. Y. 
Mr. MacGillivray remarks “this differs from the description (of 
Norton) in having more of black on the base of the abdomen and in 
having the apex of the posterior femora whitish. Judging from Pro- 
