1881.] 37 



Pasorpodes okegoxensis, n. sp. 



3 . Very pale yellowish-testaceous, the abdomen (excepting at apex) fuscescent 

 above ; ocelli shining blackish ; eyes deep black. Antenna? dusky towards the tips. 

 Legs concolorous ; the tips of the tibia? and of the tarsal joints slightly blackish ; 

 spinose hairs of tibia? and tarsi few, short and black ; pulvilli large, rounded, black. 

 Maxillary palpi having the 3rd and 4th joints conical, not concave within. Genre 

 produced downward into a broad triangular tooth, on each side of the face below 

 the eyes : mentum with a slight triangular tooth on each side. 



Cheliferous segment oval, yellowish ; claws short and stout, testaceous at the 

 tips. Appendages, viewed laterally, prominent, thickened 

 and out-turned at the tips : viewed in front they consist 

 of a long band-like piece, slightly dilated at the apex, 

 which is provided with two out-turned slightly foliaceous 

 branches (the true appendages), the whole structure 

 scarcely extending to the base of the claws. The whole 

 segment is finely pubescent. 



Wings wholly very pale shining flavescent, transparent, without markings, the 

 pterostigmatical region slightly darker : neuration very pale, the transverse nervules 

 conspicuously whitish if the wings be held against the light : sub-costa terminating 

 about the middle of the costa (before the pterostigma) in both pairs. 

 $ unknown. 



Length of body, 7 — 8 mm. Expanse, 20 — 24 mm. 

 Mt. Hood, Northern Oregon. I have nine $ before me. 

 The genus Panorpodes was established by me in the Trans. Ent. 

 Soc. Lond., 1875, p. 188, for an insect (P. paradoxal from Japan, which, 

 while possessing the general form of Panorpa, differs in the rostrum 

 being short and triangular, and in the penultimate and ante-penultimate 

 abdominal segments in the $ not being modified and elongate, but 

 narrow and of the form of the ordinary segments, the cheliferous 

 segment closely sessile ; also in the form of the maxillary palpi, simple 

 tarsal claws, and unicolorous pale wings. 



The interesting little North American insect above described 

 possesses so many points in common with that from Japan, that, for 

 the present, it may be located in the same genus ; there is a striking 

 similarity in colour in the two species. The following structural dis- 

 crepancies exist : — 



1. The sub-costa in P.paradoxa extends into the pterostigmatic region 



in the anterior-wings. (This may certainly be considered of spe- 

 cific importance only). 



2. The rostrum in P. paradoxa is longer than in P. oregonensis (hence 



the latter is still more divergent from the ordinary condition in 

 Panoypa). 



