HAGEN.] ZOOLOGY PSEUDO-NEUEOPTERA AND NEUROPTERA. 595 



robust, conical process, both convergent. Thorax same as in the male ; 

 the brown bands on the dorsum darker, nearly confluent with the ante- 

 humeral band in one of the specimens. Abdomen less slender, a little 

 dilated on the tip ; colors same as in the male, the dorsal yellow spot 

 on the second segment large; earlets small; appendages yellow, as 

 long as the last segment, conical, sharp, convergent; tubercle between 

 them darker; vulvar lamina yellow, nearly as long as the segment, tri- 

 angular, bifid a little beyond the apical half, the branches contiguous, 

 rounded, tapering toward the tip, which is bent outward, indented just 

 before. Feet and wings as in the ^ ; pterostigma larger. 



Length of the body ^,52-54 millimeters; 9 51 millimeters; alar ex- 

 pansion, ^, 65-68 millimeters; $, 68 millimeters; pterostigma, ^, 3 

 millimeters; 9 , 4 millimeters. 



Habitat. — Eock Island, Illinois (Mr. Walsh); Upper Wisconsin (Mr. 

 Kennicott); Maine (Dr. Packard and Mr. Uhler). Mr. Walsh saw only 

 one male; the type burned in Chicago was examined by me in 1868, but 

 I took no notes. The description by Mr. Walsh agrees perfectly with 

 the two males from Wisconsin described by me; Mr. Walsh stated 

 (p. 389) that the male has no tooth on the second joint of the penis, 

 but it certainly exists there, and, as I know that Mr. Walsh used lenses 

 of low power only, he may have overlooked it. In the third addition to 

 the SynojJsis des gompJiines, De Selys describes (p. 13) a male fiom 

 Maine, communicated by Dr. A. S. Packard, and erroneously unites 

 with, it 0. mainensis, as will be seen by the description of this species. 



O. Mainensis. 

 0. mainensiSj Walsh, Proceed. Ent. Soc. Phil., 1863, p. 255, female. 



Male. — Yellowish-green, marked with black; labium paler, the margin 

 black; labrum with a narrow, black, front margin ; head before yellowish- 

 green; part between the eyes black, and a large basal black baud above 

 on the front; antennae black, tip of the first joint pale; vertex black, 

 pale at the base and in the middle, cariniform, excavated above, scarcely 

 emarginate, the sides rounded off at ends, and a smaller carina in a 

 semicircle around the ocelli ; occiput greenish-yellow, straight, densely 

 ciliated with long black hairs; eyes behind livid, with a black trans- 

 versal superior spot near the occiput; protborax black, with small yel- 

 lowish spots on tbe middle and each side ; thorax greenish yellow, with 

 blackish-brown bands ; the middle ones narrowed to the wings, sepa- 

 rated by the carina, yellowish to the bifurcation; the laterals large and 

 confluent with the antehnmeral, only near the wings divided by the 

 paler suture ; margin of the sinus blackish ; sides of the thorax green- 

 ish-yellow, an incomplete, inferior blackish band, ending at the stigma, 

 and a smaller complete one on the second suture ; below pale ; abdo- 

 men cylindrical, slender, at the base and before the apex dilated, black 

 on all segments, with yellow dorsal spots, enlarged on 1 and 2, hasti- 

 form, not reaching the tip on 3 to 5, shorter, more triangular on 6 and 7, 

 short basal and enlarged on tip on 8 and 9, large, transversal, separated 

 from the base on 10 ; sides of all segments with large, elongated, yel- 

 low s[)ots, divided l>y the suture, reaching the tip only on segments 2 

 and 8 to 10 ; ventral margins of segments 8-9 black ; dorsal articula- 

 tions after the sixth segment yellow; venter black, of the last three 

 segments lulvous; appendages yellow ; clothed with i)ale hairs; supe- 

 riors as long as the last segment, robust, directed downward, approxi- 

 mate at base, with a basal tooth on the inner edge, conical, sharj) on tip; 

 viewed laterally very robust, with a basal inierior caiina, tlie apical 

 half dilated, rounded tillshortbeforethesharp-pointed tip, with two series 



