SVRFHIDAE OF MAINE. 



207 



A. 



H 



LFmoun a*TfmilUJ.ron LHIitk 



EXAMPLE STRUCTURE 



(AS PERSONALLY 



OBSERVED) 



\Cof>f*fy/um -marytnat-um 



C./n cacti: \ Vofuceila avlda.(/<t) 



\VoiuC.e.lta faactafa. (t3,S<t) 



'*>'*** fSS^ssLw^wj 



^CARNIVOROUS: 



OTHC* HOtrofTCt* ; 



0. Exlirnally among colonies of hasp 



'Piflja. piaticoidta fv. -. I- 

 PlpZ* o4e 6 fa.(J-W T 

 PlpTJo. r*dicum (VSptll.W 

 (fSp> ISO+6Tf, 

 stifro 



araaua ctnqueti 

 at-i/gua-bico)or (3 



iWt* I3lh- ---- ....... 



Z7/,37. fO) 



THE 



APHIDOPHAGOUS 

 TYPE 



B. 



THE 



BORER 

 TYPE 



TNI 



SHORT-TAILED, 



FILTH-INHABITING 



TYPE 



D. 

 THE 



LONG-TAILED. 



FILTH-INHABITING 



TYPE 



E. 

 THE 



MICRODON 

 TYPE 



LARVAE OF SYRPHIDAE 



Fig. 28. An outline of the known habits and structure of the larvae 

 of Flower-flies. The numbers following the names of species refer to 

 papers in the bibliography. 



