ACADEMY OF SCIENCES. 87 
terms of those authors. The notices of the habits and localities of the spe- 
cies are from my own observation, and for them I am personally responsible. 
Tribe MACROGLOSSINI. 
Arctonotus lucidus. Bdv. 
Head, palpi, antenns, thorax, and abdomen, yellowish olive. Thorax, 
with the tegule a little darker, and edged narrowly with white. Abdomen, 
with small anal tuft. Anterior wings, yellowish olive, with a darker median 
band, not reaching the interior margin, and surrounded by an oblique rich 
purple border along the interior margin, and obsolete before reaching the 
costa. This border hasa rather brilliant metallic reflection. Beyond the 
middle is a notched shade of olive, resting on the costa, a small linear patch 
near the apex, and a Junate streak near the interior angle, of the same color. 
Fringe of the exterior margin, yellowish, with the edges brown; that of the— 
internal margin, purplish, concolorous with the oblique band. Posterior 
wings, reddish fawn color at the base, with a rich claret-red submarginal band, 
narrowing inwardly, and lost in the brown hairs of the analangle. Margin, 
broadly reddish fawn color, the same shade as the base of the wings. Under 
: fo eae a olive, with a ferruginous patch on dise of the anterior wings. 
“Fringes, deep fawn color.. Middle tibiz, with four black, shining, palmated 
spines, recalling somewhat the structure of the fore tarsi of (ryllotalpa. 
Hind pair, with two spines, fawn color, clothed with hair. 
Expanse of wings, 2.00 inch. 
Length of body, 1.00 inch. 
Coll. Dr. Behr, Sacramento. H. E., Oregon. 
I have taken the liberty to redescribe this very rare Sphinx, as Dr. Boisdu- 
val’s description is both brief and vague, and as I have had the good fortune, 
recently, to examine six specimens of this little known insect, which were 
forwarded to me from the Dalles, Oregon, for the most part in excellent con- 
dition. At present, this is certainly one of the rarest species known to Amer- 
ican entomologists. I have followed Mr. Grote in placing this genus in the 
present group, though not without misgivings, as its general structure, par- 
ticularly the form of its antennz, its long body clothing, and its extremely 
short tongue, seem, as Clemens observes, to point out its proximity to the 
Bombycide. It has been piaced by this author, and by Walker, at the ex- 
treme end of the Sphingide. 
Hemaris Thetis. Bdv. 
Through the kindness of my friend, Mr. Grote, I have recently had the op- 
portunity of examining Boisduval’s type specimens of this species, the for- 
mer gentleman’s admirable description (Trans. Am. Ent. Soc., Vol. 1, 1868) 
rendering further notice of it unnecessary. I should, however, observe, that 
in fresh specimens there is always present on the hind tibize a bunch of long, 
pale yellow hairs, which are not visible in the somewhat worn and faded type 
specimens. ‘lhe presence of the reddish apical spot in the anterior wings is, 
I think, byno means a safe character, asin any one of my specimens it is 
