Ecological Study of Hemipiera of Cranherry Lake Region 21 



Bog Association'. The Hemiptera of the bogs, as represented 

 in Big Floating Island, Bean Pond, Forsaith's Bog, included such 

 forms as Euscelis humidus, E. instahilis, E. vaccinii, Phlepsius 

 macideUus, Thamnotettix ehuratus Aphelon.ema histrionica, Lac- 

 cocera vittipennis^ Nahis limhatus, Isclinorrhynchus geminatus, 

 Phytocoris lasiomerus, Psallus n. sp., etc. Europiella ruhida, 

 Plagiognathus fraternus, P. politus, and Camptohrochys laricolis 

 were collected on larch. The aquatic forms, taken in Bean Pond 

 and a small pond in Big Floating Island, are represented by Gerris 

 rufoscutellatus, G. huenoi, G. marginatus, Notonecta undulata, 

 Buenoa margaritacea, Ranatra americana, Microvelia huenoi, Cal- 

 licorixa praesuta and Artocorixa scahara. 



Swamp Association: The swamp meadow association included 

 especially Draeculacephala novehoracensis,D. manitohiana, Tham- 

 notettix decipiens, T. ciliatus, T. placidus, Nahis limhatus, Phyto- 

 coris sp., Mecomma gilvipes, Stenodema trispinosum, S. vicinum, 

 Trigonotyliis ruficoryiis, Collaria meilleurii, Homaemus aenei- 

 frons and several of the forms (aquatics and plant-feeders) listed 

 in the bog association. 



Plain Association: The Hemiptera of the Plains included 

 especially Philaronia hilineata, Philaenus lineatus, Piibilia con- 

 cava, Deltocephalus misellus, Laccocera vittipennis, Melanorhopala 

 clavata, Thyanta custator^ Coenus delius, Perillus exaptus var. 

 d. {fide Van Duzee), Ortholomus longiceps, Nysius ericea, 

 Cropliius disconatus, Ilnacora malina and Mecomyna gilvipes. 

 The latter was common along the trails in moist, shady places in 

 larch thickets. The larch insects (see bog association) were very 

 common in the pure stands of this tree. 



Burn Associations: The older burned-over regions (sec station 

 number 5) included not only the Hemiptera common to the sur- 



^ 



Fig. 11. — The Plains, located near the Upper Oswegatchie River. 

 See description of Station Number 12. Photo by Prof. E. F. 

 McCarthy. 



