40 Bulletin of the Brooklyn Entomological Society Vol. XI 



Of eleven other specimens from White Plains on various dates 

 in May and one in June, all the macropterous are females and the 

 brachypterous males. 



This species was taken on a damp and marshy meadow, by 

 sweeping close to the ground, in places where the tall tree-like 

 moss grows in clumps. The European species of Acalypta are 

 generally found in moss. It is not very common, and is taken in 

 twos and threes, principally in May. I have taken nearly full- 

 grown nymphs under stones March 5 and 19, April 2, November 

 25 and December 5, which would indicate that the species over- 

 winters as nymph. 



DISPERSAL OF SOME ORTALIDJE. 



By Frederick Knab, Bureau of Entomology, U. S. Department 



of Agriculture. 



The Ortalidse have recently received comprehensive treatment 

 by Hendel, four numbers of Wytsman's " Genera Insectorum " 

 deahng with as many of the seven subfamilies. From this work 

 it is apparent that a large proportion of the genera are peculiar 

 to one or the other hemisphere, or to still more circumscribed 

 faunal regions ; indeed, one entire subfamily, the Richardiinae, is 

 confined to the New World. Species occurring in both hemis- 

 spheres are very few and every case of such wide distribution is 

 undoubtedly due to dispersal through the agency of man. 



Three species are recorded in the Aldrich catalog as common to 

 Europe and North America. Of these Tritoxa rufipes Meigen 

 appears to be a doubtful case that needs further evidence. The 

 other two are Chrysomyza demandata Fab. and Seioptera vihrans 

 Linne. Two American ortalids, Euxesta quadrivittata Macq. 

 and Noto gramma stigma Fab., have been reported from the 

 Hawaiian Islands and are undoubtedly established there. I am 

 now able to report further the establishment of one Oriental 

 ortalid in America, and that of two American species (one of 

 them the Notogramma stigma just mentioned) in the Philippine 

 Islands. Omitting the doubtful Tritoxa rufipes, it is interesting 

 to note that the species that have obtained a footing beyond their 



