146 THE CANADIAN ENTOMOLOGIST 



beetles whose habitat is dead logs and stumps, are numerous. The beautifil 

 Aphorista vitiata (Fab.) is occasionally found, Eustruphiniis bicolor Fab., 

 Orchesia castanca Melsh. and Holostrophiis bifasciatus (Say) are numerous, 

 while Scaphidiiiiii piceum Melsh. and Scaphisoma convcxum Say are less so. 



Somewhat later Mictotoiiiis scricaiis Lee. Canifa piisiUa (Hald.), Capno- 

 chroa fulginosa (Melsh.), Aphorista vlttata (Fab.), Mycctophagus flexuosus Say, 

 Litargus didesuuis Say and Lathridiiis liraliis Lee. are among the interesting 

 species that can be found either under bark or l)y sweeping. Throughout the 

 Summer Chrysomelids are numerous, including species of such striking groups 

 as Pachyhrachys and Cryptocephalns and species of Donacia. Calosoma syco- 

 phanta L- can bis found climbing in search of Oipsy moth larvae. 



Representatives of the Hemipterous groups are common during the 

 Summer and a considerable number of species occur. Among the Pcntatomidac, 

 there may be mentioned such interesting species as Podisus placidiis Uhl., 

 Perillus exaphiis Say, Banasa diiiiidiata (Say), and Pcribolus liiiibolariiis Stal., 

 while Buschistus is represented by several species, variolarius (P.B.), tristigmus 

 Say, and ictcricus (Linn.). 



Species of the very interesting Fulgorid genus OUocarus are found 

 occasionally, while late in the season A canalonia hivittata Say is quite numerous. 

 Throughout the Summer the Cercopids are plerttiful, the innumerable forms of 

 Philacnus leiicophthalmus (Linn.) and Clastoptcva protcus Fitch and obtusa 

 (Say) being most numerous. 



Leafhoppers are numerous in species and individuals, some of the most 

 showy being Butcttix sonthivicki (Van D.). johnsoni Van D., 'seminud;iis (Say), 

 and strobi Fitch; Jassiis olitorius "Ssiy, Chlorotettix unicolor (Fitch) and tergatus 

 (Fitch), Penthiiuia aniericmta Fitch, Mesamia fitelina (Fitch), and Acoccphalus 

 nervosus {Sc\ir2ir\k). 



Everything considered, Walden Pond has proved to be one of the most 

 favorable collecting grounds that the writer has found near Boston, and a visit 

 to these sacred haunts has yet to be made without turning up something 

 interesting or not previously taken. 



These specimens labeled "Concord" seem a little more valuable than 

 others, perhaps for the reason that Thoreau may have observed and wondered 

 at the means of life of the forbears of these specimens which now repose in my 

 cabinet ; even as we today wonder and search to learn how and why they live, 

 so that in far future years our posterity may more clearly understand and 

 appreciate that greatest riddle of all — life. 



NOTES ON THE INSECTS OF THE SPREADING DOGBANE, 



APOCYNUM ANDROSAEMIFOLIUM L., WITH A 



DESCRIPTION OF A NEW DOGBANE 



MIDGE, BY DR. E. P. FELT. 



BY HARRY B. WEISS AND ERDMAN WEST, 



New Brunswick, N. J. 

 The following notes are the results of miscellaneous observation, made 

 for the most part on Chrysochus OMra^Mj • during the summer of 1920. In, 

 addition it was thought desirable to add brief accounts of other dogbane insects] 



