452 



WEST VIRGINIA EXPERIMENT STATION 



ity. Found attracking Tomicus, Pityophthorus and Gnathotri- 

 chus, 



Order HEMIJ^TERA : Family CERCOPIDAE. 



192. Aphrophora parallela (?) 

 (Spittle insect.) Nymphs very 

 common on pitch pine, near Bruce- 

 ton Mills, June 22, '97. This or 

 other species common in pine, 

 spruce, hemlock and balsotn fir. 

 Pocahontas, Greenbrier and Ran- 

 dolph counties, July,'93. Common 

 on black spruce near Davis, July 

 11, '91. On yellow and scrub pine, 

 Kanawha Station, May 20,'92. 



Order HEMIPTERA : Family APHIDAE. 



193. Chermes abietes Linn. The 

 spruce gall louse. Common on na- 

 tive and cultivated spruce. Ob- 

 served in the southern, middle and 

 northern sections of the spruce area 

 on black spruoe, and at Morgan- 

 town on JNorway spruce. 



Order HEMIPTERA : Family cocci- 

 DAE. 



194. Chionaspis pini folia (?) 

 What was evidently this species was very common on white 

 pine at Nuzums in 1891, causing the foliage to turn yellow and 

 the tree subsequently died. 



195. Lecanium sp. (?) Very common on a small scrub pine 

 near Romney May 7, '94. 



196. Rhizococcus sp.(?). Observed frequently on pitch, scrub 

 and white pine and on spruce in different sections of the State. 

 Fig. XC1X. Common on small spruce near Cranesville, June 

 23, '97. 



Fig. XCIX. Ehizococcus sp. 

 on black spruce. 



