. Bulletin. Natural History; Natural History. 264 Illinois Natural History Survuy Bulletin{'ol. 22. § 2. Fi^. 31.-N'vmph von Semocapnia Carolina. 1940, C (). Mohr & Amp; B. D. Burks, 1 9; April 16, 1936, H.H.Ross & Amp; c. O. Mohr, $; April 21, 1936, T. H. Gefängnis& c. O. Mohr, 19; April 14, 1940, C.O. Mohr& B. D. Burks, 29. Untiefen, White River: April 5, 1940, C.O. Mohr& B.I). Burks, 1 9. ViRf; iNL. - South Hill, Roanoke River: Feb.16, 1937, i, $ 9 9 Remington, Rappa - hannock Fluss: März 21, 1940, T. H. Gefängnis et al.,^i, 9, 9, Nymphen und exuviae. RucK - ersville: März

• Bildanbieter: Library Book Collection / Alamy Stock Foto
• Bild-ID: RGWB7T
• Dateigröße: 7,1 MB (176 KB Komprimierter Download)
• Freigaben (Releases): Model - nein | Eigentum - nein
• Format: 850 x 2940 px | 7,2 x 24,9 cm | 2,8 x 9,8 inches | 300dpi

Weitere Informationen

Dieses Bild ist ein gemeinfreies Bild. Dies bedeutet, dass entweder das Urheberrecht dafür abgelaufen ist oder der Inhaber des Bildes auf sein Urheberrecht verzichtet hat. Alamy berechnet Ihnen eine Gebühr für den Zugriff auf die hochauflösende Kopie des Bildes.

Dieses Bild kann kleinere Mängel aufweisen, da es sich um ein historisches Bild oder ein Reportagebild handel

. Bulletin. Natural history; Natural history. 264 Illinois Natural History Survuy Bulletin {'ol. 22. Art. 2. Fi^. 31.—N'vmph of Semocapnia Carolina. 1940, C. (). Mohr & B. D. Burks, 1 9 ; April 16, 1936, H. H. Ross & C. O. Mohr, $ ; April 21, 1936, T. H. Prison & C. O. Mohr, 19; April 14, 1940, C. O. Mohr & B. D. Burks, 29. Shoals, White River: April 5, 1940, C. O. Mohr & B. I). Burks, 1 9. ViRf;iNL.—South Hill, Roanoke River: Feb. 16, 1937, i $, 9 9- Remington, Rappa- hannock River: March 21, 1940, T. H. Prison et al., ^ i, 9 9, nymphs and exuviae. RucK- ersville: March 2i, 1940, T. H. Prison et al., $. Lynchburg, Elk Creek: March 22, 1940, T. H. Prison ct al., %$, 69. Richmond, Robert P. Lee Bridge: 19. Capnia opis (Newman) Chloroperla opis Newman (1839, p. 89). Original description, $, 9. (Capnia vernaiu Needham & Claassen (1925, p. 256). Misidentification. Capnia opis Ricker (1938, p. 134). Proper synonymy revealed. Ricker (1938) has shown that opis is the same species as that redescribed and recorded by Needham & Claassen (1925) as vernalis Newport (1851). Reference to the specific name of opis by Needham &: Claassen (1925) and by Claassen (1928) is entirely omitted. Ricker (1938) further states that ver- ludis is not a s nonym of opis but a distinct species. Thus far, among the numerous specimens of Capnia that I have examined from North America, I have been unable to recognize more than one species, opis (= vernalis in the sense of Needham & Claassen), of Capnia from eastern North America. If vernalis is a distinct species, as Ricker states, I am unfamiliar with it, and it must have a much different general distributional range than opis. Experience with long series of specimens unquestion- ably of the same species has shown me that slight variations in structural char- acters are to be expected, and it is probable that specimens I consider within the limits of variation of opis are comparable to the specimens which

Stockbilder mithilfe von Tags suchen

• booka
• bookcentury1900
• bookdecade1910
• booksubjectnaturalhistory