19G THE CANADIAN ENTOMOLOGIST. 



each antenna and lip of basal joint of antenna outwardly, greenish yellow. 

 Thorax black, the prothorax, tegulse, two wedge-shaped bands along the 

 parapsidal grooves, scutelium, centre of metathorax above, and a large 

 angular spot on pleura, also yellow. Legs yellow, except the bases of 

 coxse, the tips of hind femora, tips of all the tibiae outwardly and the tar- 

 sal joints, especially toward their tips, which are black. Wings smoky 

 brownish-hyaline, irridescent, nervures black, the basal part of stigma 

 and costa adjoining stigma yellowish. Abdomen greenish-yellow above 

 and below, except the basal half of basal plates, a triangular spot on 

 basal part of each dorsal abdominal segment, except the last, and oviposi- 

 tor sheaths, which are black. Length, 9, 11 mm.; expanse, 22 mm. 

 The pair of spots between the eyes and second pair on the front part of 

 mesothorax are conspicuous. 



FITCH'S TYPES OF N. A. MEMBRACID^E. 



BY F. W. GODING, M. D., PH. D., RUTLAND, ILLINOIS. 



( Continued froju page 172.) 

 No 3123 is Ophiderma flava, Godg. 

 No. 4416 is the type of Thelia cratcegi, Fh. 



No. 1875 is the type of Ceresa brevicomis, Fh. The brief description 

 given by Fitch is correct, but not sufficiently complete. Good characters 

 are present for separating it from its congeners. 



The species labelled Thelia Robhue is T. turriculata, Fh., and that 

 labeled S/ni/ia betnhe. is ,S. ca/ne/us, Fabr. Fitch's manuscript name 

 Zuela is what is now known as Stictocephala, Stal. The descriptions of 

 the species of this family, published in Emmons's N. Y. Report, were 

 written by Dr. Fitch, as is stated by Emmons in a foot note, and there is 

 no valid reason for crediting such species to Emmons. Fitch described 

 the species and preserved the types which are now in the collection of 

 the National Museum ; consequently, his name should be attached to all 

 such species whenever reference is made to them. While Fitch depended 

 largely on the distribution of colours and shape of the crest of the pro- 

 thorax, yet he gave some reliable characters which are of use in identify- 

 ing his species. The crest immediately after the last moult is very soft 

 and easily mutilated, and many species might be made from the eggs of 

 a single iemale were this character depended upon. It should be used 

 only with other and less variable characters. 



