HAGEN.] ZOOLOGY PSEUDO-NEUEOPTERA AND N£UROPTEEA. 579 



smaller near to the base ; hind-wings liyaline. This male Lad appar- 

 ently recently cast the skin, and is identical with the fragment of the 

 type described in the synopsis. Tlie type of B. Walsh in my collection 

 is smaller (alar expansion, 23 millimeters), darker in color, but otherwise 

 not different; the hind-wings have some transversal veins clouded, and a 

 few blackish spots. A male from British America has the size of the 

 male above described, but the colors of the specimen from B. Walsh. 



Female imago. — Luteous ; a darker line on each side of the prothorax ; 

 abdomen above with two larger triangular black spots on each segment, 

 beneath with two longitudinal black lines ; setre pale ; feet luteous ; 

 femora of the anterior feet brownish, tip of the joints brown ; wings simi- 

 lar to the male, but the costal margin nearly hyaline, the spots smaller; 

 some few spots on the hind-wings. A second female from British 

 America is similar to the first. 



Si(himago, male and female. — Grayish-luteous ; setce pilose; wings 

 dusky; spots the same as in the imago, none on the hind- wings; costal 

 space a little darker. 



Imago : length of the body, S , 10 millimeters ; 5 , 11 millimeters ; 

 alar expansion, 5 , 23-27 millimeters ; ?, 30 millimeters ; length of the 

 seta, (J , 30 millimeters. 



Subimago : length of the body, 13 millimeters ; alar expansion, 30 

 millimeters ; seta, 9 , 15 millimeters. 



Rahitat. — New Haven, Conn., S ; Norway, Me., J^,$; Eock Island, 

 111., (J ; Chicago, 111., ? ; Virginia, $ ; British America, c? , 2 , imago 

 and subimago. 



The wings of the two males from Virginia have darker spots, but prob- 

 ably belong to this species. U. compar is nearly related to E. decora, 

 but is a little larger, brighter-brown, the anterior feet black, with the 

 femora brown, the seta without blackish rings on the joints, the 

 appendages visibly longer, the wings more yellowish, the costal margin 

 brown, the spots smaller, the hind-wings with a larger apical brownish 

 baud. 



This species is the E. decora of my synopsis, and according to the 

 notes made by me in 1857, in the British Museum, also Walker's £!. 

 decora, I do not find the antennae blackish ; in the type-specimen of my 

 synopsis, the antennse are now wanting. I have no doubt about the 

 rights of this species, which imitates well the European U. glaucops. 

 The type of Mr. Walsh is the smallest specimen known, but, according 

 to his paper, another male from the same locality was larger (alar 

 expansion, 25 millimeters), nearly as large as the specimens above 

 described. 



E. guttulata, Pictet, Ephera., 135, 4, PI. 8, Fig. 4. Male Imago. 



Syx.— J?., sp. nov., Hagen, Proc. Ent. Soc. Philad., 1863, 177.— Trans. Eat. Soc. 

 London, 1873, 393. — Eaton, Monogr., 71 (var. of E. myops). 



Female imago. — Head and thorax luteous ; a brown band each side on 

 the prothorax, some darker spots on the thorax ; abdomen pale-yellow, 

 last segment brownish on the sides ; setre pale-yellow, faintly pilose, tho. 

 articulations annulated with black; anterior feet yellow ; femora, base, 

 ami tip of tibioi, tip of tarsal joints, brown, the other feet yellow ; fore- 

 wings hyaline, fumose on the costal and apical margin ; transversal veins 

 except on the third part of the hind border strongly clouded with black ; 

 a larger confluent elongated black spot in the middle of the wing; hind- 

 wings on the apical margin fumose, the transversals on the costal mar- 

 gin, and some apicals strongly clouded with black ; a larger confluent 

 black spot in the middle, and a small one near the base. 



