NORTH AMERICAN NEUROPTERA. 265 



joint of posterior tarsi as long as the two basals together. The nymphae 

 are of dull yellow color, segments 2 to 8 on dorsum with two divergent 

 blackish bands, and another ill defined longitudinal one externally. 



A male nympha skin 32 mm. long from Dallas, Texas, in McLachlan's 

 collection agrees well in all characters, except that the lateral margins of 

 segments 8 to 9 are very little serrated, but I have overlooked also this 

 character in the dry female skin till I got alcoholic specimens. Moreover, 

 the abdomen is less depressed, and so it looks much narrower, but this 

 may be the effect of transformation or a sexual character ; dorsal hooks 

 sharp on segments 3 to 9 ; the alcoholic specimens show also a hook on 

 third segment ; nevertheless the narrower abdomen makes it not impossi- 

 ble that the specimen may belong to a nearly related but different species. 



19. Oomph us spec. 



One male nympha skin from Detroit, Mich., by Mr. H. Gr. Hubbard. 

 Length 22 mni. 



Body elongate, somewhat hairy ; head cordate, notched behind, angles globular ; 

 third joint of antennae twice the length of the two basal, cylindrical, bent up, 

 flattened above, truncate on tip; fourth joint rudimentary, a short tubercle; mask 

 large, a little longer than broad, sides bent up, straight in the apical half, oblique 

 to the base, channeled below; middle third of front border straight, with a long 

 comb of flat scales, and a short, black tooth in the middle; palpus short, broad, 

 strongly arcuate, end hook sharp, before it a series of sharp teeth to the base; 

 movable hook long, bent, sharp; wing cases reaching 4th segment; abdomen 

 spindle shaped, more than thrice longer than broad, about equally rounded above 

 and below, sloping after segment G : segments of equal length, 9th a little longer 

 than Sth,pn tip half as broad ; 10th cylindrical, half as long as 9th ; lateral spines 

 on 6th to 9th, the last half as long as 10th ; dorsal hooks on 3 to 9, the last ones 

 being sharp spines; scars as usual, genitals marked; appendages a little longer 

 than last segment, triangular, sharp; laterals one-third shorter; legs for burrow- 

 ing, rather long, hind legs reaching 8th segment; third joint of posterior tarsus 

 as long as the two basal. 



Perhaps the nympha may belong to G. furcifer ; its shape is similar 

 to G. nofafiis. 



20. Goiiiphiis vnstiis (raised). 



Walsh, Proceed. Ac. Sci. Phila. 1862, p. 391 ; Cabot, p. 3, No. 4, pi. 2, fig. 4. 



One male nympha skin from Rock Island, Illinois, by Mr. B. Walsh ; 

 one male skin and one female, just emerging, from Hannibal, 111., trans- 

 forming in numbers May 27, 1872, by Mr. Charles V. Riley. Length 

 31 mm. The nympha was compared formerly with G. vulgattssimus, 

 but it is nearer to the group of G. notatus, the nymphae of which were 

 not known at the time. 



Body somewhat stout, little hairy; head cordate, less notched, angles globular; 

 third joint of antennae twice the length of the two basal, cylindrical, bent up, 



TRANS. AMKR. KNT. SOC. XII. (38j DECEMBER, 1885. 



