Hagen.] 282 [January 22, 
ventral segments with Harris’ specimen), and a female, all from 
Trenton Falls, N. Y., collected by Mr. Doubleday. The other speci- 
mens placed with them by Mr. Walker, andquoted in his catalogues, 
are, one male of Pt. nobilis, from Trenton Falls, a male from N. York, 
and one from the Mackenzie River, both not belonging to Pt. Proteus. 
I am indebted to Mr. R. M’Lachlan for a new examination of the 
types, also for many other details given in this notice. The male 
specimen given to me in 1857, was believed to be one of Mr. New- 
man’s types of Pt. Proteus, but belongs to Pt. regalis. I possessed 
at the time a female from the Red River of the North agreeing well 
with the male, and described both in the Syn. 14, 1, as the true Pt. 
Proteus. 'The male is the smallest specimen of Pt. regalis I have 
ever seen, and as it was not.spread, and was in very bad condition, 
I did not recoonize the fact that it is undoubtedly the same species 
as the type of Pt. regalis I also received from the British Museum. 
As I have now before me only fragments, and as Pt. Proteus does 
not exist in any American collection seen by me, I can only give a 
short notice. ‘The two males in the British Museum measure, length 
34 mm., expanse of wings 56 mm. The ? type is 52 mm. long, and 
the expanse of wings is 70 mm. Another male in Prof. Westwood’s 
collection in Oxford, also typical, is smaller, the wings expanding 
only 52mm. Harris’ specimen is of the same size as the types in 
the British Museum. The diagnosis can only be imperfect, as the 
greater part of the abdomen, and other important parts, are wanting 
in the specimen before me. 
Male dark fuscous above and below; head with a transverse fur- 
row before the anterior ocellus, spots outside of the posterior ocelli 
yellow; basal border of the antennz behind extended in a broad, 
short tooth; prothorax a little broader behind; anterior and lateral 
borders straight, with right, but not sharpened, angles; hind border a 
little arcuated, the yellow median line narrow; legs and sete dark 
brown, the sete a little paler at the base; wings smoky, veins dark 
with smoky clouds; abdomen with the ninth ventral segment with 
the disk sparsely punctured on each side with a hollowed scar; the 
tenth bifid, spoon-shaped, brown; penis ? wanting; the last dorsal - 
segment seems to have a rounded, somewhat hairy middle spot, but 
the abdomen has been nearly destroyed. 
I have no doubt that the specimen truly belongs to Pt. Proteus, 
although the knees are not yellow, as Mr. Newman says. ‘The dia- 
grams made by myself from the types in London, shown to be right 
