IV 



INDEX. 



HEMIPTERA. 



abruptus*, Platymatopius . . . 165 



Aleyrodes 215 



arnericana, Chionaspis 355 



Aphides no, 119, 255, 280 



ballii, Bracliycolus 119 



bicolor*, Scaphoideus 166 



Callipterus 120 



Candida*, Ncocoelidia 166 



canicularis, Cicada 43 



Chionaspis 355, 356 



Cicada 43 



compta, Neocoelidia 167 



conictts, Ischnodemus 234 



di.rianus*, Platymetopius . . . 163 



dorsalis* Platymetopius 164 



fiabellus, Callipterus 120 



greyi* Scphina 232 



Ischnodemus 233, 234 



Lcpidosaphcs 357 



Liotropis 177 



majestus*, Platymetopius ... 164 



Microparsus 337 



-iiwntamts* Thryeocoris 231 



Neocoelidia 166, 167 



New Jersey, H. of 43 



nigriviridis*, Platymetopius . . 163 



Ocopeltus 233 



Pemphigus 319 



pinifoliae, Chionaspis 356 



Platymetopius 165 



purchella* Neocoelidia 168 



reticulata*, Ncocoelidia 167 



salicis, Chionaspis 356 



Scaphoidcus 166 



Scriptus*, Platymetopius 165 



Scphina 232 



slossoni*, Ischnodemus 233 



spcctabilis*, Ocopeltus 233 



Thryeocoris 231 



tripunctata* Neocoelidia . . 168 



ulmi, Lcpidosaphes 357 



variabilis*, Micropardus 337 



venafuscus*, Pemphigus .... 319 



viburnicola*, Aphis 280 



vitrinnelluSj Aleyrodes 215 



HYMENOPTERA. 



aciculatus* Andricus 247 



Andrcna 126 



Anthidiine bees 261 



Anthropora 300, 391 



Ants' nest, an artificial 113 



asperiformis* Astata 371 



aureolum* Trypo.vylon 381 



banksi* Crabro 147 



baiiksii* Sphecodes 416 



basirufus Tachytcs 197 



birkmanni. Tachytcs 199 



boulderensis* Crabro 323 



bruneifrons, Pimpla 291 



dilectiformis* Crabro 146 



burkci* Cryptus 291 



calcaratiformis, Tachytcs . . . 204 



Carolina* Andrena 126 



cockerelli* Lyroda 369 



cockerelli* Gorytes 371 



Coelioxys 9 



Crabro ....146, 147, 150, 151, 152 



Cryptus 291 



deani* Coelioxys 8 



Diadasia 206 



dilectiformis* Crabro 146 



distolus* Sphecodes 416 



ditbitatus* Tachytcs 202 



crythropus* Pimpla 291 



Euceros 245 



fisheri* Helorimorpha 290 



florissantcnsis* Crabro 149 



Formica. 92 



fumipcnnis. Anthophora .... 391 



Gorytes . . . ; 371 



Halictus 160 



Helorimorpha 290 



johnsonii* Sphecodes 122 



lactcipcnnis* Crabro 150 



lucidum* Rhopalum 324 



Lyroda 369 



