166 Fiftieth Report on the State Museum 



PAGE, 



PiOPHiLA CASEi, the Cheese Skipper: the Ham Skipper 229* 



Bibliography, 229. Salt pork infested by some insect, 230. The attack 

 most probably of this species, although the appearance was unusually 

 early, 230. Its activity not hastened by warmth, 231. Not hitherto 

 known to brefd in meat simply salted, 231. The insect described and 

 figured, 231. Place and manner of depositing eggs, 232. Miss Murt- 

 feldt's notes on transformations, 232. The records of others, 232. The 

 food-habits of the insect, 233. Losses inflicted on cheese factories, 233. 

 Injuries in western packing houses, 233. Excluding the flies by nettings 

 234. Cleanliness and washing cheese rooms with whey or lye, 234. 

 Guard from infestation, 284. Fumigation and kerosene emulsion, 234. 

 Meat attacked not necessarily a total loss, 234. 



Lebia grandis 23& 



Bibliography, 235. Extravagant newspaper accounts of its destroy- 

 ing Colorado potato beetles, 235. Figured, 235. The insect described, 

 236. Long known as an enemy of the potato beetle, 236. Early records 

 of its operations, 236. Distribution, 237. 



Plagionotus speciosus, the Sugar Maple Borer 237 



Bibliography, 237. Prominent markings of beetle and figures, 238. 

 Characteristics of its family, 238. Notorious allies, 239. Description of 

 the beetle by Harris, 239. Its burrows, 239. Ravages at Schoharie, 239. 

 Its operations in several other localities, 240. Formerly rare, 240. Manner 

 of oviposition, 240. Manner of running larval burrows, 241. Larva- 

 hibernate in their burrows, 241. The limited distribution recorded, 241. 

 Infests maple and possibly oak, 242. Natural enemies, 242. Cutting 

 out grubs and applications of washes recommended, 242. Clearing up of 

 underbrush in maple sugar groves followed by attack, 242. 



Saperda tridentata, the Elm Borer 24S 



Bibliography, 243. Insidious nature of attack by borers, 243. The 

 turrows of the larvae described and figured, 244, Injuries to elms in 

 Boston, Mass., 244. Enfeebled condition of trees invites attack, 244. 

 Eavages in Illinois and other localities, 245. The beetle described and 

 figured, 245. Description of the larva, 245. Compared with the linden. 



