30 Bulletin of the Brooklyn Entomological Society Vol. XVI 



three Gomphus lividus Selys flying together at Long Pond in 

 July, 1917, and reported upon in the Journal of the New York 

 Entomological Society for December, 1918; two specimens of 

 Sympetriim semicinctum Say and several vS. costiferum were 

 collected at Long Pond; a female of the latter had so many 

 mites that the abdomen was much twisted and deformed. 



Mr. Geo. P. Engelhardt spoke " On some ^geriidse from 

 Long Island," of which family he is attempting a revision based 

 chiefly upon biological data ; with a better knowledge of food- 

 plants and habits, many of the species now listed in a disconnected 

 arangement will prove to be, mere forms or subspecies expressing 

 the influence of environmental changes in the range of parent 

 species ; on the other hand, evidence of the same nature will show 

 that others, now considered as not distinct, are entitled to specific 

 rank ; series of the following were shown td illustrate the 

 speaker's remarks: ^geria hassiformis Walker, from Pennsyl- 

 vania, and its subsp. cupatorii Hv. Edwards, from Long Island ; 

 ^. pyralidiformis Walker, from Long Island, and its subsp. san- 

 borni Hy. Edwards, from Illinois; ^. pictipes Grote and Robin- 

 son, from Long Island; and ^. castanece Busck, from Long 

 Island. 



J. Bequaert, Secretary. 



