INSECTS AFFECTING PARK AND WOODLAND TREES JQQ 



Sucking insects 



Thelia univittata Ha-rr., brown, white-lined tree hopper, y io in., on twigs. Pack. 



Aphid s or plant lice 

 Lachnus quercifoliae Fitch. Pack. 



Schizoneura querci Fitch, black aphids, % in. Pack. p. 212 

 Chaitophorus spinosus Oestl., orange or yellow aphid. l / lo in. Pack. p. 213 

 Callipterus bellus Walsh. Ins. N. j. p. 104 



Callipterus discolor Mon., dark rose colored aphid. Pack. p. 210 

 Callipterus hyalinus Mon. Ins. N. J. p. 104 

 Callipterus punctatus Mon. Pack. p. 210 



Callipterus quercifolii Thorn., brownish aphid with annulate antennae. Pack. p. 211 

 Aphis quercifoliae Walsh., pale greenish aphid. Pack. p. 209. 



Scale insects 



Eulecanium antennatum Sign. Fern. Coccidae, p. 181 

 Eulecanium lymani King, Fern. Coccidae, p. 190 



Eulecanium quercitronis Fitch, % in. ; black oak. Pack. p. 98. Ironwood 



Eulecanium quercifex Fitch, y io in. Pack. p. 98 



Kermes andrei King, brown, hemispheric ; white oak. Psyche, 9 : 22 



Kermes perryi King, scrub oak. Psyche, 9:81 



Kermes pettiti Ehrh., brown, hemispheric. King. Psyche, 9:81 



Kermes kingii Ckll., red oak. Fern. Coccidae, p. 63 



Kermes nivalis King & Ckll., brown, hemispheric ; white oak. King. Psyche, 9:80 



Kermes pubescens Bogue. Fern. Coccidae, p. 64 



Kermes quercus Linn. Fern. Coccidae, p. 64 



Eriococcus quercus Comst. Fern. Coccidae, p. 78 



Sphaerococcus sylvestris Ckll., white oak. Can. Ent. 30:326 



Chrysomphalus obscurus Comst., hickory. Fern. Coccidae, p. 291 



Acorn feeders 



Holcocera glandulella Riley, yellow or grayish white larva. Chittenden. U. S. Div. 



Ent. Bui. 44: 38 

 Melissopus latiferreanus Wlsm. Am. Ent. Soc. Trans. 10: 54 



OAK GALLS 



Acorn galls 



Andricus operator O. S. form operatola Riley & Bass., five or six galls in aborted 



acorns. Am. Ent. Soc. Trans. 26:315 

 Andricus perditor Bass., galled acorns exude a liquid. Am. Ent. Soc. Trans. 26: 313 



Twig galls and others 



Andricus seminosus Bass., subconic, apical, j4 to 1 in. Am. Ent. Soc. Trans. 17:76 



Andricus gibbosus Prov. Nat. Can. 12:232 



Andricus obtusilobae Bass. Am. Ent. Soc. Trans. 26: 316 



