NE0EOPTERA TBICHOPTERA PHBYGANID.S;. 



nia. The upper branch of the sector originates earlier than usual, close to 

 the base of the discal cell, which is short, as in Neuronia, but only because 

 the cross-veins which terminate are carried to an unusual distance toward 

 the middle of the wing, and are therefore widely separated from the cross- 

 veins uniting the sector with the cubitus an unusual feature in this sub- 

 family, ami one which with its other peculiarities renders it probable that it 

 should be generically separated from living types. There is also lacking 

 tlir /.i.u-xag arrangement of the cubital cross-veins, though their exact rela- 

 tion can not be determined throughout. The hind leg bears two pairs of 

 tjbial spurs, as always in this subfamily. 



The length of the body is indeterminable ; the length of body and wings 

 together in repose is 24""" ; of front wing, 20.5 mm ; greatest breadth of same, 

 8.5 mm ; length of hind tibia, 3.65 mm ; of hind tarsi, 4.65 tDm . 



Florissant. One specimen, Xo. 7728. 



PHRYGANKA Linnc. 



Species of this genus are by no means unknown in a fossil state ; 

 indeed 1 it is the only genus of Phryganidse which has heretofore been 

 represented in the rocky strata by remains of the perfect insect, and while 

 onlv two species are known from amber, four have been described from 

 Tertiary rocks (Aix, Mombach, Parschlug, and Greenland) and a fifth indi- 

 cated from the Isle of Wight. Very likely some of these may be found to 

 belong elsewhere, but their large size would lend a probability to their 

 proper reference here, since this genus and its allies contain the largest of 

 the caddis-flies. We have here a single species to add, represented wholly 

 by wings, but very well preserved. The genus is mostly confined to North 

 America and Europe. 



PHKYGANEA LABEFACTA. 



PI. 13, Fig. 5 ( $ ). 



An excellently preserved front wing, lacking only a fragment broken 

 from tin' lower outer angle, represents a male. It is of a nearly uniform 

 smoky brown tinge, with much darker distinct veins, and delicately mottled 

 with taint, pale, circular dots which are larger and therefore more noticeable 

 than elsewhere in the upper outer half of the wing, and are absent from the 

 center. It is of about the si/,e of our common Neuroma semifasciata (Say) 

 but itt a diH'eiviit *hap'e. Ix-ing subquadrate, about three times longer than 



