Common Names in English:
'The Hesperiidae are members
of the Superfamily
Hesperioidea. Worldwide in distribution, skippers are richest in the tropics. More than 3,500 species are described, with approximately 275 in North America, many of which are found only in Arizona and Texas. Most skippers are small to medium, usually orange, brown, black, white, or gray. A few have iridescent
colors. Skippers have large eyes, short antennae (often with hooked
clubs), stout bodies, and three pairs of walking legs
. Their flight is often rapid, making wing
movement appear blurred. Adults
of most species have long probicscises and feed
nectar, but some also take up nutrients
from bird droppings. Males have scent scales
found in modified forewing
patches. Males of most species locate mates by perching
and giant-skippers), though some patrol, especially in the open-winged skippers. Globular
are laid singly.
Giant-skippers are members of the Family Hesperiidae. These large robust insects comprise four genera and are limited to the United States and Mexico. Most species occur in the Southwest and adjacent desert portions of Mexico. Antennae are not hooked , and some species have a short apiculus . Males have long hairlike scales on the upper surface of the hindwings . Adult giant-skippers rarely feed , though males visit wet sand to imbibe moisture. Eggs are glued to host leaves (Megathymus and Stallingsia) or dropped into host plant clumps (Agathymus). Caterpillars burrow into host leaves and stems and feed within silk-lined tunnels. Pupae are formed in the larval tunnels and can move up and down . 
Species Agathymus stephensi
Fringes are distinctly checkered. Upperside is brown-black with yellowish scales at the wing bases and cream-colored spots. Hindwing spot band is curved and there is usually a spot in the cell . Underside of hindwing is mottled gray with irregular bands of cream-colored spots. (ref. 105467)
Fringes are distinctly checkered. Upperside is brown-black with yellowish scales at the wing bases and cream-colored spots. Hindwing spot band is curved and there is usually a spot in the cell . Underside of hindwing is mottled gray with irregular bands of cream-colored spots.
Wing span : 2 - 2 1/4 inches (5.1 - 5.7 cm).
The adults roost on bushes, the males usually in canyon bottoms . From early morning to noon males perch near host plants to wait for receptive females. Eggs are laid singly on the host and fall to the base of the plant. A young caterpillar crawls to a leaf tip and burrows inside where it eats pulp and then hibernates. In the spring the caterpillar make a new burrow in a leaf base where it feeds on sap until ceasing activity for the summer. Before pupating, the caterpillar enlarges the opening of its burrow and makes a silk trap door from which the adult can emerge .
- Whittaker & Margulis,1978
- C. Linnaeus, 1758
- (Hatschek, 1888) Cavalier-Smith, 1983
- Grobben, 1908
- A.M.A. Aguinaldo et al., 1997 ex T. Cavalier-Smith, 1998
- Latreille, 1829
- Snodgrass, 1938
- Heymons, 1901
- Order: Lepidoptera () - Linnaeus, 1758 - Butterflies and Moths
- Cohort: Myoglossata ()
- Infraclass: Pterygota ()
- Subclass: Dicondylia ()
- Epiclass: Hexapoda ()
- Superclass: Panhexapoda ()
- Infraphylum: Atelocerata () - Heymons, 1901
- Subphylum: Mandibulata () - Snodgrass, 1938
- Phylum: Arthropoda () - Latreille, 1829 - Arthropods
- Superphylum: Panarthropoda () - Cuvier
- Infrakingdom: Ecdysozoa () - A.M.A. Aguinaldo et al., 1997 ex T. Cavalier-Smith, 1998
- Branch: Protostomia () - Grobben, 1908
- Subkingdom: Bilateria () - (Hatschek, 1888) Cavalier-Smith, 1983
- Kingdom: Animalia () - C. Linnaeus, 1758 - animals
Name Status: Accepted Name .
Members of the genus Agathymus
ZipcodeZoo has pages for 21 species and subspecies in this genus:
A. alliae (Mojave Giant-Skipper) · A. aryxna (Arizona Giant-Skipper) · A. baueri (Bauer's Giant-Skipper) · A. baueri freemani (Freeman's Agave Borer) · A. evansi (Huachuca Giant-Skipper) · A. gentryi (Gentry's Giant-Skipper) · A. mariae (Mary's Giant-Skipper) · A. mariae chinatiensis (Chinati Mountains Agave Borer) · A. mariae lajitaensis (Lajitas Agave Borer) · A. mariae rindgei (Rindge's Agave Borer) · A. neumoegeni (Orange Giant-Skipper) · A. neumoegeni carlsbadensis (Carlsbad Agave Borer) · A. neumoegeni chisosensis (Tawny Giant Skipper) · A. neumoegeni diabloensis (Diablo Mountains Agave Borer) · A. neumoegeni florenceae (Florence's Agave Borer) · A. neumoegeni judithae (Judith's Agave Borer) · A. neumoegeni mcalpinei (Mcalpine's Agave Borer) · A. polingi (Poling's Giant-Skipper) · A. remingtoni (Coahuila Giant-Skipper) · A. remingtoni valverdiensis (Coahuila Giant Skipper) · A. stephensi (California Giant-Skipper)
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- Catalog of hymenoptera in America north of Mexico / prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein. .. [et al.]. Washington: Smithsonian Institution Press, 1979- url p. 250.
- Entomological news. [Philadelphia]American Entomological Society, 1925- url p. 112.
- Transactions of the San Diego Society of Natural History. 13 1964 [San Diego]: The Society, 1905-1989. url p. 169.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
- LepIndex: The Global Lepidoptera Names Index
- Opler, Paul A., Harry Pavulaan, Ray E. Stanford, Michael Pogue, coordinators. Butterflies and Moths of North America. Bozeman, MT: Mountain Prairie Information Node. March 26, 2007.
- Opler, Paul A., Kelly Lotts, and Thomas Naberhaus, coordinators. 2009. Butterflies and Moths of North America. Bozeman, MT: Big Sky Institute. http://www.butterfliesandmoths.org/ (Version of April 17, 2009).
- Ruggiero M., Gordon D., Bailly N., Kirk P., Nicolson D. (2011). The Catalogue of Life Taxonomic Classification, Edition 2, Part A. In: Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D., eds). DVD; Species 2000: Reading, UK.
- Biodiversity Heritage Library NamebankID: 2602340
- Catalogue of Life Accepted Name Code: Lep-180604.0
- Natural Heritage Network Species Identifier: IILEP87180
- Zipcode Zoo Species Identifier: 172675