DAGEN.] ZOOLOGY PSEUDO-NEUEOPTERA AND NEUROPTEEA. 597 



in the spines of the occiput being divergent instead of convergent. 

 More specimens of both species are necessary to show the constancy of 

 this character. 



HERPETOGOMPHUS. ;' 



jH. compositus, Hagen, Synop., 99, 1. 



A teneral female, in very bad condition, quoted in my last report (p. 

 727) as probably belonging to S. viperinus, a species never seen by me, 

 has again been carefully studied, and I am now of the opinion that it 

 belongs to ff. compositus, described by me after a siugie female from 

 Texas. I received a male from Northern Texas, Dallas, by Mr. Boll, 

 agreeing with De Selys's description in the third addition (p. 12), but 

 the very abrupt and intensive yellow color at the base of the wiugs 

 is not marked. The female from Yellowstone is larger ; length, 54 mil- 

 limeters; alar expansion, 68 millimeters ; and the first lateral brown 

 band of the thorax not well defined, ending shortly after the stigma. 

 It will be more prudent to retain this female as U. compositus until 

 the difference is better established by the comparison of more sjieci- 

 mens, the more as the pair described by DeSelys from Oregon is nearly 

 as large as the Yellowstone one. De Selys adds : " Je ne vols pas de 

 renjlement anterieur Wocciput chez la femelle,^^ but it exists not in the 

 female type. 



Habitat. — Western Texas, Pecos Eiver, the female type in my collec- 

 tion ; Dallas, Tex., Boll, one male ; Yellowstone, a female from Hay- 

 den's expedition, 1872 ; a pair from Oregon by Lord Walsingham. 



GOMPHUS. 



G. olivaceus, De Selys's third addition Synop. des Goraphines, p. 22. 



Female (in alcohol). — Pale greenish-yellow ; head entirely greenish- 

 yellow, labium paler; a transverse brownish band, interrupted in the 

 middle above at the base of the front; antennae blackish ; the two basal 

 joints greenish -yellow ; part between the vertex and front black, with 

 some yellowish dots ; vertex flat,,. depressed, yellow, each side behind the 

 ocelli somewhat inflated, carinated around the lateral ocelli; occiput 

 yellow, straight, with short, black cilia, and with a series of fine, black: 

 teeth ; eyes behind yellow, with a superior black spot near the occiput ; 

 prothorax yellow; on thediskeach side with a larger brownish spot; thorax 

 yellow; dorsum each side near the yellow crista with a brown band, nar- 

 rowed above, not reaching the sinus; each side a large, incurved, brown 

 baud, separated by a smaller yellow band from the brown line on the hu- 

 meral suture ; sinus brownish to the bifurcation ; sides and below yellow ; 

 abdomen large, cylindrical, yellowish, each side a dorsal, black, large 

 band, indented inside, not reaching the base on segments 4-5 (the rest 

 is lost by accident, but has been examined before ; it was colored in a 

 similar way, the ajjpeudages yellow, the vulvar lamina short, broad, 

 notched in the middle) ; femora yellow, with a short, black, apical band 

 above, and below with numerous very short, black spines; tibiaB and 

 tarsi black; wings hyaline; veins black; costa yellow ; pterostigm a ob- 

 long, yellow^, with4cells below; 14-15 antecubitals, 10-11 postcubitals; 

 2 discoidal areolets; m( inbranula whitish. 



Length of the body, 54 millimeters; alar expansion, 72 millimeters; 

 ptcrostigma, 4 millimeters. 



Habitat. — Humboldt River, N<4)raska, Mr. G.-irman ; California, Lord 

 Walsingham, or j^erhaps, as the foregoing species, from Oregon. 



