REPORT OF THE STATE ENTOMOLOGIST I904 



433 



21 Pine cone gall 



Cynips strobilana 

 O. S. 



22 Oak leaf seed gall 



Cynips decidua Bass. 



23 Oak hedgehog gall 



Acraspis erinacei 



Walsh 



24 Oak fig gall 



Biorhiza forticor- 

 n i s Walsh 



25 Hairy oak leaf gall 



Biorhiza hirta Bass. 



26 Oak bullet gall 



Holcaspis globulus 

 Fitch 



27 Rough bullet gall 



Holcaspis duricoria 

 Bass. 



28 Oak leaf bullet gall 



Dryophanta polita 

 Bass. 



29 Oak potato gall 



Neuroterus batatus 

 Fitch. 



30 Oak button gall 



Neuroterus umbili- 

 c a t u s Bass. 



31 Noxious oak gall 



Neuroterus noxio- 

 s u s Bass. 



32 Leaf oak gall 



Cynips Pfrondosa 

 Bass. 



33 Blueberry gall 



Solenozopheria vac- 

 c i n i i Ashm. 



TWO-WINGED GALL FLIES 



Diptera 



34 Hickory onion gall 



Cecidomyia holo- 

 t r i c h a O. S. 



35 Hickory pill gall 



Cecidomyia persi- 

 c o i d e s O. S. 



36 Willow cone gall 



Cecidomyia strobi- 

 le i d e s O. S. 



37 Oak pill gall 



Cecidomyia pilulae 

 Walsh. 



38 Balsam leaf gall 



Cecidomyia balsam- 

 ic o 1 a Lintn. 



39 Willow twig gall 



Rhabdophaga sali- 

 c i s Schrk. 



40 Small solidago gall 



Trypeta polita Loew. 



41 Large solidago gall 



Trypeta solidaginis 

 Fitch 



TRUE BUGS 

 Hemiptera 



Psyllid galls 

 Psyllidae 



42 Hackberry nipple gall 



Pachypsylla celti- 

 dis-mamma Riley 



Galls of plant lice 

 Aphididae 



43 Witch-hazel cone gall 



Hormaphis hamame- 

 1 i d i s Fitch 



44 Spiny witch-hazel gall 



Hormaphis spinosus 

 Shimer 



45 Cockscomb elm gall 



Colopha ulmicola 

 Fitch 



46 Poplar leaf stem gall 



Pemphigus populi- 

 trans versus Riley 



47 Basal leaf gall 



Pemphigus populi- 

 c a u 1 i s Fitch 



48 Vagabond gall 



Pemphigus vagabun- 

 d u s Walsh 



49 Phylloxera galls 



Phylloxera vitifoli- 

 a e Fitch 



50 Hickory stem gall 



Pemphigus caryae- 

 c a'u lis Fitch 



