Vol. 34, pp. 167-172 December 21, 1921 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



ADDITIONAL NOTES ON FUNGOUS INSECTS. 

 BY HARRY B. WEISS AND ERDMAN WEST. 



The following notes deal mainly with fungous insect records 

 which have accumulated since the pubhcation of former papers^ 

 along this line. In this connection it is of interest to note that 

 W. M. Davidson records Psyllohora taedata LeConte,^ a coccinel- 

 lid as feeding during its adult and larval stages on rose and apple 

 powdery mildew, Sphaerotheca pannosa Lev., and Podosphaera 

 oxyacanthae De Bary All through their larval existence, the 

 insects under observation fed on the fungi, cutting semicircular 

 swaths through the mycelial filaments. 



Buller in his paper on "The Red Squirrel of North America 

 as a Mycophagist "' states that this animal "not only feeds on 

 the seeds of fir-cones, hazel-nuts, etc., but is also an habitual 

 mycophagist. In the late autumn it often collects fleshy fungi 

 in large numbers for its winter supply of food, and it stores these 

 fungi sometimes en masse in holes in tree trunks, old birds' nests, 

 etc., and sometimes separately on the branches of certain trees." 

 The fungi mentioned by Prof. Buller are members of the genera 

 Armillaria, Russula, Ladarius and Boletus. 



Parshley in his "Essay on the American Species of Aradus"* 

 mentions the following Hemiptera which appear to be asso- 

 ciated with fungi, — Aradus proboscideus Walk., Aradus dehilis 

 Uhl., about Cryptoporus on Pinus, and Aradus similis Say on 

 Polyporus on Betula. 



Under date of July 26, 1921, Mr. Ryoichi Takahashi writes 

 that he collected eighteen species of Coleoptera on Pleurotus sp., 



iProc. Biol. Soc. Wash., vol. 33, pp. 1-20; vol. 34, pp. 59-62; vol. 34, pp. 85-88. 



2Ent. News, vol. xxxii, p. 83. 



3Trans. Brit. Mycol. Soc, vol. vi, part iv, pp. 355-362. 



iTrans. Amer. Ent. Soc, xlvii, p. 14. 



34— PBGC. Biol. Soc. Wash., Vol. 34, 1921. (167) 



