INVERTEBRATE FAUNA OF SOUTH CAROLINA. 281 



SUB-ORDER HOMOPTERA. 



[Heniiptera liavinji' the anterior winjis of the same thickness throufrhont. and 

 usuallj' si ipino; at the sides : IMoutli parts inserted at the jjosterior and inferior por- 

 tion of tlie head.] 



FAMILY COCCID^. BARKLICE. OR SCALE INSECTS. 



This is one of the most injurious families of insects. The species have 

 been very little studied, so that their geographical distribution is not well 

 known. A number of species have been described by Prof Com.stock, 

 from the District of Columbia, and, as the majority of these will proba- 

 bly be found in South Carolina, thej^ are included in the following list : 



Aspidiotus ancylus Putnam, (D. C, on Ma- Aspidiotus pini Comst., (Ga., on pines), 

 pie, Peach, Hackberry.) 

 obscurus, Comst., (D. C, on tenebrieosus Comst. (D. C, on 



Willow and Oak.) red Maple.) 



Diaspis carueli Targ., Tozz.— (D. C, on Diaspis rosae fSandberg). (On Rose, Black- 

 Juniper and Arbor Vitae.) berry and Raspberry.) 

 Chionaspis euonymi Comst., (Va., on Euon- Chinaspis nyssae Com.st. (On Black Gum.) 



ymus. 

 furfurus (Fitch). (D. C, on Apple.) pinifoliae (Fitch). (On Pines.) 



Mytilaspis poniorum (Bouclie). (On Apple.) 

 Lecaniuni hesperidum (L.) (On Ivy and Orange.) 

 Kermes gallaeformis Riley. (On Oak.) 

 Dactylopius destructor Comst. (INIealy bug.) 

 longifilis Comst. (D. C.) 



FAMILY APHIDID^. PLANT LICE. 



About 170 species of Plant lice have been described in the United 

 States. They are very injurious insects, and are familiar to all gardeners 

 and florists. During the past year the grain louse {SipJionopliom avenae, 

 Fabr.) has done much damage to wheat in North and South CaroHna. 

 We mention some of the most prominent South Carolina species : 

 Siphonophora avenae (Fabr.) (The grain Si phonophora rosae Beau v. (0;i i?ose.) 



louse.) 

 Myzuscerasi (Fabr.) [On Cherry.) Myzus persicae (Selzer). {On Peach.) 



Aphis mall Fabr. [On Apple.) Aphis brassicae Linn. {On Cabbage.) 



maidis Fitch. On Corn.) 

 Schizoneura lanigera Hausm. {The Woolly Schizoneura americana Riley. {On Elm.) 



Apple Louse.) 

 ?emi)higns alnifolii Riley. {On Maple.) 

 Phylloxera vastatrix Planchon. {Tlie Grape Phylloxera.) 



