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Download torrent Proceedings of the United States National Museum Volume 37

Download torrent Proceedings of the United States National Museum Volume 37

Proceedings of the United States National Museum Volume 37. United States National Museum

Proceedings of the United States National Museum Volume 37
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Author: United States National Museum
Page Count: 294 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Format: Pdf
ISBN: 9781130783452
File Name: Proceedings.of.the.United.States.National.Museum.Volume.37.pdf
Download Link: Proceedings of the United States National Museum Volume 37
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ...antenodal as a maximum; apical fumose area sometimes present, variable in extent, in one case extending basally to nodus; as in the male, the darkest winged specimens are teneral; stigma as in male. The wings of 1U females show the following: Triangle of front wing, free 6, crossed 14; subtriangle of front wing, free 4, crossed 16; triangle of hind wing, free 7, crossed 13 (compare with same parts in 10 males as tabulated; in rows of postrigonal cells, as well as other areas, female Macromias have a larger number of cross-veins than the males). (See fig. 6.) Vulvar lamina about 4i length of segment 9, deeply and widely emarginate in a semicircle or right angle. Abdominal appendages equal or very slightly shorter than segment 10. I refer to iUinoiensis two very similar males, one from Great Falls, Maryland (U.S.N.M.), and the other from Pennsylvania (Acad. Nat. Sei., Phila.). These have abdomen 51 mm. in length and hind wing 46. The Maryland specimen has the tibial keels as usual in iUinoiensis, but in the Pennsylvania specimen the keels of the first and middle tibiae are J + and J in length of the respective tibia?. The abdominal spots on 3-6 are conspicuous, those on 6 in the Maryland specimen being about 1 mm. in diameter, and in the Pennsylvania specimen about half as large. It is possible that a larger series would reveal that these 2 specimens are specifically distinct. Pig., --Winus Of Female Macromia Illinoiensis, Sandusky, Ohio, July 12, 1903. M. iUinoiensis is the best known and most widely distributed of the North American Macromias. Professor Walker, who has observed the species carefully, has written me with reference to its habits, and his remarks are quoted in full: I have taken the species in but two localities, De Grassi Poi...

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