Xov., 'ooj K\Ti>.\i<)i.(H,ir.\L M:\VS 



genus does not appear on the plates, only in the text, so cannot date 

 before 1845. 



The genus Sarcopsylla Westwood was published in 1840, so has 

 priority over Dermatophilus. Rhynchoprion used by Mr. Baker instead 

 of Sarcopsylla is preoccupied by Rhynchoprion Hermann 1804 in the 

 Acarians. 



All those who hold that a named figure is valid without text must 

 credit such names on Guerin's plates at least as early as 1838; while 

 names only in text should not date before 1845. X. BANKS. 



THECLA DAMON CRAM. AND ITS VARIETIES. This past summer, from 

 July i8th to August loth, I found Thccla damon in unusual abundance 

 on South Mountain, Wernersville, Pa. Unfortunately most of them 

 were faded and worn; but of fifty or sixty specimens sufficiently good 

 to be worth spreading and of several times this number which I re- 

 jected, all the females were either the dark form patcrsonia, with no 

 trace of fulvous scales, or intermediate between patersonia and typical 

 damon, from examples showing faint traces of the fulvous scales on 

 the secondaries to others with fully one-third of the wing-area more or 

 less overlaid with fulvous; all of the males were either the dark form, 

 patcrsonia. the yellow form, discoidalis, or intermediate between these, 

 with full intergrades. 



Patcrsonia has been recorded from Long Island (Scuddcr), New 

 Jersey (Brehme), Virginia, South Carolina (Smyth), and I have speci- 

 mens from Georgia and Delaware as well as Pennsylvania; discoidalis 

 was described from a Texas specimen, but Dr. Skinner has it from 

 other localities; both forms occur in the spring and summer broods. 



Is the absence of typical damon at Wernersville due to local and 

 temporary causes, perhaps the almost unprecedentedly dry season, or 

 have patcrsonia and discoidalis replaced it there?. FRANK MORTON 

 JONES. 



HOPS AND FLIES. I was greatly interested last summer and fall 

 in all that appeared in "The Christian Advocate" in regard to abating 

 the house-fly nuisance. My colleague. Miss Blackburn, and I have 

 learned a simple and effective method of freeing a house from the 

 common fly and also from the "blue-bottle," that seems entirely 

 possible to many people unable perhaps to afford methods costing 

 money. To "write it up" for a paper would not be very effective, 

 for my name would carry no weight, but I would like to lay a bit 

 of our experience before you. I am sure you will be interested. 



We have observed through more than eight years that in summer our 

 house, unscreened, located in a town and land where filth and rubbish 

 abound as almost nowhere in America, is in the kitchen and dining 

 room wholly free from the pest of flies. We may cook meats, 



