HAGEN,] ZOOLOGY PSEUDO-NEUEOPTERA AND NEUEOPTERA. 601 



"wings of the same color, without grannlations and orange hairs ; first 

 apical cell shorter than the third, the others similar; feet strong, 

 pitciiy-black ; femora bright-orange ; the four anterior tibise and tarsi 

 brown interiorly ; spars 1, 2, 2, yellow, long ; tibise and tarsi with strong 

 black spines ; abdomen pitcby-black above, orange beneath. 



31ale. — The upper margin of the last segment is cut off straight ; 

 appendages orange; the superiors small, flattened, straight, subconverg- 

 ent lobes, rounded on tip, with some small yellow hairs beneath ; between 

 them a shorter triangular penis-cover, cariuated above ; intermediates 

 very small, short, cylindrical, the tip suddenly enlarged, rounded ; infe- 

 riors large, much longer than the suiieriors, broad, separated below by 

 a short, ovoid, ventral lobe, concave inside ; the margin after a small 

 excision produced in a long, band-shaped, narrow process, incurved, and 

 pointed on tip ; perhaps the process is moveable ; the base sparingly 

 clothed with brown hairs; tip of penis visible; two thin penis-sheaths, 

 with some bristles on tip. 



Female. — Abdomen blunt on tip ; anal valves triangular ; vulvar lobe 

 not well visible, perhaps trilobate. 



Length, with the wings, 26 millimeters ; expansion of the anterior 

 wings, 51 millimeters. 



Locality. — One pair from Colorado Mountains, in August. Here 

 belongs the badly-preserved male from Yellowstone, referred to in the 

 sixth report as Stathmophorus related to St. Argus. 



This interesting species is the largest known for North America, 

 differing from all others by the very large ocelli. The species is very 

 similar to St. Argus in sp. nov. size and shape, and even more to St. 

 gilvipes. 



StenophyJax gilvipes, sp. nov. 



This species recalls PI. atripes in size, shape, and color in the most 

 extraordinary manner. Nevertheless, it is to be recognized by the 

 entirely yellow legs and 1, 3, 4 spurs ; orange-colored, head and thorax 

 pitchy-black above ; head before the antennae orange, clothed with 

 orange hairs, pal]>i orange ; antenna) stout, pitchy-black, serrated 

 beneath, and there the tip of the joints brownish; basal joint orange 

 beneath ; head and thorax above clothed with grayish and some black 

 hairs; ocelli large, prominent; thorax beneath tightly clothed with 

 white hairs; anterior wings large, the apex parabolic, ash gray, some- 

 what shining ; the veins pitchy black and margined everywhere with 

 black, very distinct; costal margin pale in the middle, blackish at both 

 ends ; thyridium and arculus pale ; the membranes, excepting the costal 

 and dorsal .jnargins, distinctly granulated; from each granulation 

 springs a small, decumbent, orange hair; apical cells of the same 

 breadth; the first, third, and fifth i)ointed, somewhat longer; posterior 

 wings of the same color, without granulations and hairs ; veins less dis- 

 tinct; the costal margin pale throughout; apical cells similar; feet dull- 

 jellow ; spurs 1, 3, 4, yellow, long; tibite and tarsi with long, black 

 spines ; abdomen orange. 



Male. — The upper margin of the last abdominal segment cut off 

 straight; appendages orange, sparingly clothed with longer yellow 

 hairs; superiors short, flattened, straight, convergent lobes, rounded on 

 tip, and visibly larger than in PL atripes ; between them a shorter bifid 

 I)euis-cover ; intermediates just below the superiors, shorter, cylindrical ; 

 inferiors, large, longer than the superiors, broad, widely si'parated by a 

 short, ovoidj t'eutral lobe, concave inside, produced externally in a long, 



