. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. 142 TERTIARY INSECTS OF NORTH AMERICA. f^" excepting one from Radoboj, an Anax, first described as ^schna metis by Heer. Four fossil species are known from the Old World and two are here described from the New. Of the Old World types one is merely mentioned by Hagen as found in amber and is represented only by the tip of a wing. A second, from Bornemouth in England, has been figured by Goss without a name. It appears to belong to the subgenus Basis
. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. 142 TERTIARY INSECTS OF NORTH AMERICA. f^" excepting one from Radoboj, an Anax, first described as ^schna metis by Heer. Four fossil species are known from the Old World and two are here described from the New. Of the Old World types one is merely mentioned by Hagen as found in amber and is represented only by the tip of a wing. A second, from Bornemouth in England, has been figured by Goss without a name. It appears to belong to the subgenus Basiseschna, but, as it is cer- tainly incorrectly drawn in some particulars, it may be in those, such as the simplicity of the subnodal sector, upon which this suggestion is based. Tlie other two, VEschna polydore and M. tyche from Oeningen, were described nearly thirty-five years ago by Heer, and are certainly very closely allied, though distinct, as Heer pointed out. They seem to belong pretty cer- tainly to JEschna s. s., and are apparently not for removed from the European M. mixta Latr., as I judge from direct comparison-.; with the entire series referred by de Selys to ^schna s. s., whi'sh I h'tve had the opportunity of studying in the Cambridge Museum through the favor of Dr. Hagen. Heer also directly compares the former to that species, as I subsequently noted. Our independenily formed opinions have therefore completely coin- cided. These two species are also very nearly allied to one of the Ameri- can forms, which, however, more closely resembles a common American species, M. constricta Say. The otlier American fossil belongs to BasijE- schna. The resemblance of the Tertiary aeschnid fauna of Europe and America appears therefore to have been tolerably close. (September, I'^SS.) ^SCHNA Fabricius. ri? All the fossil ^schnina known, excepting one (an Anax), belong to jEschiia, two European und one American to ^Eschna proper, and one from each country to BasiiBschna.' The spec
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