410 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
Larva. — Head pale brown: body yellowish-green, with oval, dorsal, brown maculae 
darkest on their margins; thoracic rings on their sides pale yellowish. (Clemens). 
Moth —Front silvery, tuft reddish-orange and silvery mixed. Thorax reddish- 
orange. Fore-wings reddish-orange, somewhat metallic, with a white streak black- 
margined exteriorly, from the inner b<isai angle to the fold; with two oblique silvery 
bands black-margined behind, one about the middle of the winy, and the other mid- 
way between it and the base of the winy. Near the tip is a costal silvery spot, black- 
margined behind, with an opposite, oblique, dorsal streak of the same hue, likewise 
black-margined behind, and an oblique, costal, silvery streak continued on the line 
of the last dorsal, running into the cilia just before the tip, black-margined n\> 
the tip before, and below at the tip behind ; scarcely with a hinder-marginal line, 
cilia of the general hue. Hind wings plumbeous, cilia with a fulvous hue. (Clemens.) 
49. LithocollelU lucidicostella Clemens. 
Tbe larva mines the under side of the maple leaf, Acer saccharin urn, 
in July, September, and October. The head is pale brown ; body pale 
green, colored darker by the ingesta. "Frass" collected into a ball 
within the mine. The pupa is suspended in a web of silk within the 
mine. (Clemens.) 
Larva. — Head pale brown; body pale green and colored darker by the ingesta. 
(Clemens.) 
Moth. — Antennae white. Head and tuft silvery-white. Fore-wings, basal portion 
silvery-white to the nTJddle, with a discal pale golden streak from the base, retreating 
from the costa before reaching the middle of the wing and somewhat suffused with 
golden beneath the fold. From the middle to the tip pale golden, with four costal 
silvery streaks, dark-margined internally, aud two dorsal silvery streaks, the first 
opposite the second costal streak and both dark-margined internally ; the first costal 
streak not decidedly dark-margined.* Apical spot black. Hinder marginal line in the 
cilia dark browu ; cilia pale gray. Hind wings shining bluish-gray ; cilia gray. 
(Clemens.) 
50. Brachys sp. 
Mr. V. T. Chambers once wrote me that a Brachys larva also mines 
the leaves of the sugar maple. He added that u the mines and larvae 
in the beech, oak, and maple are scarcely distinguishable." 
51. Megavhile optiva Cressou. 
Order Hymenoptera; family Apid.e. 
This (or a very closely allied leaf-cutting bee) sometimes greatly 
disfigures maples by cutting pieces out of the leaves for the purpose of 
makiug its cells. u I have seen a small tree nearly defoliated by these 
bees, of which the habits are most interesting." (Harrington, Rep. Eut. 
Soc. Ontario, 1887.) 
* There is some mistake in this sentence. The first costal streak is decidedly dark- 
margined; the first dorsal streak, it is true, has scarcely a perceptible margin — it 
should probably be the first costal streak decidedh/ dark-margined or else the first dorsal 
etreak not decidedly dark-margined. — H. T. Stainton. 
