tucker: collecting insects. 77 



Family Ephemerid^. 



Hexagenia bilineata Say. Kansas, Douglas county; July and September, 

 venusta Eaton. Kansas, Douglas county; July and August. 



Pentagenia quadripunctata Walsh. Kansas, Douglas county; June, July, 

 and August. 



Sifihlurus sp. Kansas, Douglas county; June and July. 



The results of Professor Needham's study of this species is stated by 

 him as follows: "Probably new; one male subimago, one male imago 

 lacking setae, and two female subimagos badly broken; with all these, 

 owing to their condition, there is barely sufficient material for descrip- 

 tion. I have made a photograph of the female subimago which is in 

 best condition, but I have not taken your leave to retain a specimen, 

 for it is still too inadequately represented in your own collection. ' ' The 

 male imago was taken in July, in daytime, at a distance of more than 

 a mile from the river. 



Siphlurus sp. Colorado, Cheyenne canyon, near Colorado Springs; July. 

 Professor Needham reported on it as follows: "Probably new; one broken 

 female. It is different from the foregoing, and appears to be different 

 from all described species. I have specimens from New Mexico re- 

 ceived years ago; I am holding them, waiting for the arrival of an 

 adult male, for description. It only contributes to the existing con- 

 fusion to describe May-flies from females alone, or to describe them 

 without giving a figure of the female appendages." 



Heptagenia pulchella Walsh. Kansas, Douglas county; June and July. 



Heptagenia sp. Colorado, Buffalo, Platte canyon; August. 



Professor Needham says of this: "A single male which I cannot identify; 

 may be undescribed, but I cannot be sure. In order to be certain in 

 identification of May-flies, and of some stone-flies also, I require to have 

 sufficient material so that I can make slide mounts of the male ap- 

 pendages, and I prefer to have alcoholic material sent me." 



Rithogenia elegantula Eaton. Kansas, Douglas county; July. 



Leptophlebia sp. Colorado, Tabernash; August. 



Nothing further than the genus could be learned, as Professor Needham 

 explains: "This specimen came badly broken." Male. 



Callibaetis eatoni Needh. Colorado, Tabernash; August. Colorado Springs; 

 August. 

 Regarding the specimens thus designated, Professor Needham wrote: 

 "Sp. nov. of Eaton's monograph, p. 195. It is well described there, 

 but not named; it is new, in my opinion. I have been calling the 

 species C. eatoni in my own collection. Three male imagos and one 

 female subimago; the latter I have photographed." 



Callibaetis sp. Colorado, Colorado Springs; July and August. 



Professor Needham regards it as follows : ' ' Male. I doubt if it be colo- 

 radensis Banks; but since the male is undescribed, it is impossible to 

 say. I have not the female of that species in my collection; the size 

 of this male and the black spots on the costa seem hardly to be ex- 

 pected in conjunction with a female of the character described by 

 Banks." 



Ceenis diminuta Wlk. Kansas, Douglas county; July to September. ( See 

 notes on collecting, Trans. Kan. Acad. Sci., vol. XX, p. 116.) 



