28 Journal New York Entomological Society. [Voi. v. 
gularly and faintly 5-annulate; shining green, the dorsal vessel dark, 
the tracheal line evident; no marks except little dusky rings subven- 
trally defining the obsolate tubercles, which can also just be distin¬ 
guished dorsally with a lens, though perfectly concolorous. Anal 
prongs very short, remote, obscurely black-tipped. Setae very fine and 
short. Thoracic feet clear with brown claws. 
The larvae became streaked with dusky blackish on the annulets, 
bringing out the tubercles more distinctly and entered the ground to 
spin. 
Hemichroa laricis Marlatt. 
Head pale brown, dotted, eye black ; a pale arcuate line over the 
clypeus: width 1.4 mm. Body segments 5-annulate, the last two annu¬ 
lets folded; feet on joints 6 to n and 13. Body green, shaded with 
opaque pale green pigment subdorsally and broadly stigmatally, leaving 
more translucent dorsal and lateral straight lines and small irregular 
areas among the subventral folds. The bright green fat granules com¬ 
posing the pigment are aggregated along the dorsal vessel, tracheal line 
and subventrally. Feet concolorous, the thoracic clear with brown 
claws. Tracheal line straight, white. The larvae are solitary and rest 
on a needle of the food plant with the head toward the twig. They 
are very difficult to distinguish in this position, since the brown head 
harmonizes with the bark and the green-striped body with the leaves. 
Found on the larch at Jefferson Highlands, N. H. 
This larva is described by Dr. Packard in Fifth Report United 
States Entomological Commission as “ Selandria (?) sp.,” on page 901, 
number 26 of larch insects. 
Pachynematus affinis Marlatt. 
Feet on joints 6 to n, none on joint 13. Body segments 6-annu- 
late, the last two annulets small and folded, whitish. Tubercles on the 
second and fourth annulets. Head pale greenish with a bright testaceous 
tint by transparency, eye black, jaws brown; width 1.8 mm. Body 
pale green with a distinct, straight, rather broad white stigmatal line on 
joints 5 to 12, lost posteriorly in a whitish shade which covers joints 12 
and 13; the edges of the dorsal vessel form a distinct white geminate 
line on joints 3 to 11, pulsating, lost in the white tint posteriorly. A 
blackish green subdorsal band on thorax, also on the abdomen, but of 
varying distinctness. Tubercles small, concolorous and obscure, setae 
rudimentary, dark, situated in two transverse rows, on the second and 
fourth annulets, and thickly on the subventral folds. Abdominal feet 
green ; thoracic clear with brown tips. 
