North American Ecology (US and Canada)
(
anglais
)
fourni par North American Butterfly Knowledge Network
Polites themistocles is a year-round resident in the eastern United States and southeastern Canada, into Washington state in the north, and though parts of the Rocky Mountains in the southwest (Scott 1986). Habitats are grassy areas and lawns. Host plants are grass species from several genera. Eggs are laid on or near the host plant singly. Individuals overwinter as pupae. There is one flight each year in the northern part of their range with the approximate flight time June 15-July 31, and multiple flights all year in southern part of their range (southern Florida) (Scott 1986).
Conservation Status
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No conservation concerns.
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Cyclicity
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Adults are most common from late June to mid July, with one annual generation.
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Distribution
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This species is widely distributed throughout eastern North America, occurring west to central BC and northern Washington, and south along the Rocky Mountain front ranges to Arizona and New Mexico (Opler 1999). Primarily a species of the aspen parkland and fescue grassland in Alberta, ranging north to the Edmonton area.
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General Description
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"The combination of the sex patch on the male forewing and brown, unmarked hindwing serve to distinguish the tawny-edged Skipper from other branded skippers (those species with a prominent, black dash in the middle of the forewing). The only species with a similar underside is the Dun Skipper, which lacks the contrasting orange forewing markings.
Subspecies turneri, found in the southwestern foothills, has darker brown hindwings (ventrally and dorsally) than subspecies themistocles of the parkland region (Kondla 2001)."
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Habitat
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Lush, moist habitats with native grasses.
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Life Cycle
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The eggs are cream-coloured with red spots. First instar larvae are tan, and have a black head. Mature larvae are greenish to purplish brown in colour, with a mid-dorsal and lateral line (Bird et al. 1995, McCabe & Post 1977).
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Trophic Strategy
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Reported larval host plants include the following grasses: Panicum spp., Digitaria spp., Poa spp. (Layberry et al. 1998), Poa pratensis, Koeleria macrantha (Bird et al. 1995). It appears that this species prefers broad-leaved grasses to short-grass prairie species. Adults take nectar at legumes, including alfalfa.
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Polites themistocles
(
anglais
)
fourni par wikipedia EN
Polites themistocles, the tawny-edged skipper, is a North American butterfly in the family Hesperiidae.
Description
This species varies geographically and within populations.[2] The upper side of the male's wings is brown or olive brown with the forewing having bright orange along the costa that ends at the stigma. The stigma is thicker than the male crossline skipper's (Polites origenes) and it usually runs more parallel to the costa.[2][3] The upperside of the female's wings is brown with the forewing having a less conspicuous orange costa than the male. Near the end of the forewing cell there are two rectangular pale spots and three pale spots in a row in the subapical area. The underside of the wings vary form light brown to brown to brownish-orange. Sometimes the hindwing will have a crossband like the crossline skipper, but it is usually much more faint. The "tawny-edged" forewing strongly contrasts with the hindwing color.[2][3] Its wingspan ranges from 3⁄4 to 1 inch (19–25 mm).[4]
Similar species
Similar species in the tawny-edged skipper's range include the crossline skipper and the Baracoa skipper (Polites baracoa).
Crossline skippers are usually larger than tawny-edged skippers. The male has a thinner forewing stigma, and it does not run parallel to the costa. The female has less or no orange along the forewing costa and has two or three pale forewing spots with the central one being more squarish. The underside of both wings is olive brown to brown with the hindwing having a pale crossband.[2][3]
The Baracoa skipper is smaller than the tawny-edged skipper. The male has a short and straight stigma. The female has a lost of orange on her forewing and has dark patches in the same locations as the male. The underside of the wings is very similar to the tawny-edged skipper's except the hindwing has a pale crossband.[2]
Habitat
This species favors a wide range of habitats including alpine bogs, forest glades, grassy areas, moist meadows, savannas, and stream sides.[2]
Flight
This skipper flies from June to early August in the north and west, May to August in the east, and May to early November in the deep south.[2][5][6]
Life cycle
Most of the day, males perch on grass blades or stems to await females. Females lay their greenish white eggs on or near the host plant.[6] The larva lives in a nest by tying leaves together with silk. The variable brown larva is indistinguishable from closely related larvae. The overwintering stage is the pupa.[6] The tawny-edged skipper has one brood per year in the northeast and northwest and two or three broods per year in the deep south.[3]
Host plants
Host plants of the tawny-edged skipper include:
References
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Polites themistocles: Brief Summary
(
anglais
)
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Polites themistocles, the tawny-edged skipper, is a North American butterfly in the family Hesperiidae.
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Polites themistocles
(
néerlandais ; flamand
)
fourni par wikipedia NL
Insecten Polites themistocles is een vlinder uit de familie van de dikkopjes (Hesperiidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1823 door Pierre André Latreille.
Bronnen, noten en/of referenties Geplaatst op:
02-04-2013
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen.
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Polites themistocles
(
vietnamien
)
fourni par wikipedia VI
Polites themistocles là một loài bướm ở Bắc Mỹ thuộc họ Bướm nhảy. Loài bướm này sinh sống ở một loạt các môi trường sống bao gồm cả núi đầm lầy, rừng tràng, môi trường sống cỏ, ẩm đồng cỏ, thảo nguyên, và hai bên dòng suối. Loài này khác nhau về mặt địa lý và trong các quần thể.[1]. Chúng bay từ tháng sáu đến đầu tháng 8 ở phía bắc và phía tây, tháng 5 đến tháng 8 ở phía đông, và tháng Năm đầu tháng 11 về sâu phía Nam[1][2][3].
Chú thích
- ^ a ă Rick Cech and Guy Tudor (2005). Butterflies of the East Coast. Princeton University Press, Princeton, NJ. ISBN 0-691-09055-6
-
^ David C. Iftner, John A. Shuey, and John V. Calhoun (1992). Butterflies and Skippers of Ohio. College of Biological Sciences and The Ohio State University. ISBN 0-86727-107-8
-
^ James A. Scott (1986). The Butterflies of North America. Stanford University Press, Stanford, CA. ISBN 0-8047-2013-4
Tham khảo
Liên kết ngoài
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Phương tiện liên quan tới Polites themistocles tại Wikimedia Commons
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Polites themistocles: Brief Summary
(
vietnamien
)
fourni par wikipedia VI
Polites themistocles là một loài bướm ở Bắc Mỹ thuộc họ Bướm nhảy. Loài bướm này sinh sống ở một loạt các môi trường sống bao gồm cả núi đầm lầy, rừng tràng, môi trường sống cỏ, ẩm đồng cỏ, thảo nguyên, và hai bên dòng suối. Loài này khác nhau về mặt địa lý và trong các quần thể.. Chúng bay từ tháng sáu đến đầu tháng 8 ở phía bắc và phía tây, tháng 5 đến tháng 8 ở phía đông, và tháng Năm đầu tháng 11 về sâu phía Nam.
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- Wikipedia tác giả và biên tập viên
Bài viết liên quan đến họ Bướm nhảy (Hesperiidae) này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 
