MORSE: ORTHOPTERA OF NEW ENGLAND. 
263 
other orders. Why should long-winged individuals of a species be 
met with in one part of the country, and only flightless examples 
in other parts? 
Table of Native and Exotic Orthopteroidea recorded 
FROM New England 
Intro- Estab- Adven- 
Total Native duced lished tive 
Dermaptera 6 1 (?) o 5 1 
Blattidae 17 3 14 5 9 
Mantidae 3 3 (1?) 
Phasmidae 2 2 - 
Tettigoniidae 33 30 3 2 (?) 2 
Gryllidae 19 17 2 1 (?) 2 
Acrididae 
Acridinae 11 11 - - 
Oedipodinae 15 15 - - 
Locustinae 18 17 1 - 1 ? 
Acrydiinae 8 8 - - 
Total Acrididae 52 51 1 
Grand totals 132 104 (?) 28 13 (?) 16 (?) 
From this table it is evident that of the 132 species of Orthop- 
tera and Dermaptera recorded from New England, 104 are native 
species and that 28 which do not naturally occur within our limits 
have been introduced purposely or accidentally. Of these, 2 
species of predaceous habits (or possibly 3) were intentionally 
brought in to prey on other insects. Of the others, 24 were pre- 
sumably stowaways in merchandise. Of these again, only 10 or 
12 have succeeded in maintaining themselves here for any con- 
siderable period; the others are random individuals of species for 
the most part living in warm climates, introduced with tropical 
fruits, and unlikely to survive under natural conditions. The 
exact status of two (the European Mole-cricket and the European 
Bush-katydid) whether successfully colonized or not, is at present 
unknown. The common European Earwig is probably firmly 
established (more's the pity!) but as yet, fortunately, occurs 
in only a limited area. Five species of exotic Roaches are of 
frequent occurrence, three of them being widely distributed under 
