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Descriptions of Some North American Cordulina

International Journal of [ Wit Plate BY HERMANN AUGUST HAGEN CAMBRIDGE MASS. EPITHECA YAMASKANENSIS. Aesc/na yaznas/eanezsis Provancher Natur. Canad. x875 v. 7, 238 248" .fllt]eca yamas]eanensfs

Descriptions of Some North American Cordulina

International Journal of [ Wit Plate BY HERMANN AUGUST HAGEN CAMBRIDGE MASS. EPITHECA YAMASKANENSIS. Aesc/na yaznas/eanezsis Provancher Natur. Canad. x875 v. 7, 238 248" .fllt]eca yamas]eanensfs

On the Relations of Fungi to Galls and to Larvae of Cecidomyia Living in Galls

of it unattended to. ON THE RELATIONS OF FUNGI TO GALLS AND OF CECIDOMYIA LIVING IN GALLS. TO LARVAE BY HERMANN AUGUST HAGEN, CAMBRIDGE MASS. [Reprint, with slight amendment, of abstract with ... the title, by Hermann August Hagen (Canadian entom., July 1885, 17, p. i36.i37), of review, by Friedrich August Wilhelm Thomas (Irmischia, 1885, 5, P. 4- ), based record by Fritz Ludwig (Botan

Synopsis of the Odonata of North America. No. I

and Canada but even as far west as California from whence I have recently received examples fi?om Mr. Coquillett. SYNOPSIS OF THE ODONATA OF NORTH AMERICA. No. I. BY HERMANN AUGUST HAGEN, CAMBRIDGE

Synopsis of the Odonata of North America. No. I

accomodating themselves to their changing environments, undergone a similar modification in the different reBY HERMANN AUGUST HAGEN, CAMBRIDGE, MASS. - gions, or have exhibited greater stability in resisting

Descriptions of Some North American Cordulina

International Journal of [ Wit Plate BY HERMANN AUGUST HAGEN CAMBRIDGE MASS. EPITHECA YAMASKANENSIS. Aesc/na yaznas/eanezsis Provancher Natur. Canad. x875 v. 7, 238 248" .fllt]eca yamas]eanensfs

On the Relations of Fungi to Galls and to Larvae of Cecidomyia Living in Galls

of it unattended to. ON THE RELATIONS OF FUNGI TO GALLS AND OF CECIDOMYIA LIVING IN GALLS. TO LARVAE BY HERMANN AUGUST HAGEN, CAMBRIDGE MASS. [Reprint, with slight amendment, of abstract with ... the title, by Hermann August Hagen (Canadian entom., July 1885, 17, p. i36.i37), of review, by Friedrich August Wilhelm Thomas (Irmischia, 1885, 5, P. 4- ), based record by Fritz Ludwig (Botan

Two Species of Aeschna

. TWO SPECIES OF AESCHNA. BY HERMANN AUGUST HAGEN, CAMBRIDGE, MASS. I. AESCHNA SITCHENSIS. teschna sitc/ensis Hagen, Syn. Neur. N. A. 9, " Blackish-brown, spotted with blue; head yellow in fl?ont

The Female of Eutermes Rippertii

International Journal of THE - FEMALE OF EUTERMES RIPPERTII. BY HERMANN AUGUST HAGEN CAMBRIDGE MASS. The ovarium of the imago. The dark colored, mature-winged imago, taken out of the nest