Download e-book for kindle: American Beetles, Volume II: Polyphaga: Scarabaeoidea by Ross H. Arnett JR, Michael C. Thomas, Paul E. Skelley, J.

By Ross H. Arnett JR, Michael C. Thomas, Paul E. Skelley, J. Howard Frank

ISBN-10: 0849309549

ISBN-13: 9780849309540

ISBN-10: 1420041231

ISBN-13: 9781420041231

Specialists supply the main sweeping reference to be had almost about North American beetles. Their rigorous criteria for the presentation of information create a concise, beneficial layout that's constant through the e-book. this can be the source of selection for fast, exact, and simply available information.

Show description

Read or Download American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea PDF

Similar american studies books

Business Creation in the United States - download pdf or read online

Company construction within the usa provides the result of The Panel examine of Entrepreneurial Dynamics [PSED] II and is the single nationally consultant dataset of recent enterprise production offering a severe resource of knowledge at the early phases of the entrepreneurial approach. it truly is designed to supply an summary that could shape the foundation for exploring extra matters correct to precise theories or conceptual frameworks.

Additional info for American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea

Example text

The diversity in structure in both adults and larvae has led to differences of opinion regarding classification, evolution, and monophyly of the group and the genera assigned to it. There is evidence that the group (as defined in this work) includes two distinct lineages: the Bolboceratinae and Athyreinae forming one lineage, and the Geotrupinae, Taurocerastinae, and Lethrinae forming the other. 24 · Family 29. 29. Dorsal view of head and apex of pronotum showing: 2. Ceratophyus gopherinus Cartwright, apex of mandibles deeply bidentate and pronotum with central horn; 3.

Pronotum short, broad, convex. Elytra convex with 10 distinct costae, intercostae with or without distinct punctures. Pygidium concealed by elytra. Scutellum exposed. Legs with coxae transverse; protibia fossorial, outer margin toothed, apex with one spur; meso- and metatibia with 2 apical spurs; metafemora and metatibiae enlarged to cover abdomen in retracted position; tarsi 5-5-5; claws equal in size, simple; empodium absent. Abdomen with 5 free sternites; 8 functional abdominal spiracles situated in pleural membrane.

Description. 0 mm. Shape oval or round. Color yellowish, brown, orange-brown, reddish-brown, purple, brown, or black (with or without metallic reflections). Head not deflexed. Antennae 11-segmented with 3-segmented, opposable club (all antennomeres tomentose). Eyes with eucone or exocone ommatidia, completely or partially divided by canthus. 29. Bolboceras filicornis horn. Labrum truncate, promi(Say) (Used by permission of nent, produced beyond apex University of Nebraska State of clypeus. Mandibles proMuseum) duced beyond apex of labrum, prominent.

Download PDF sample

American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea by Ross H. Arnett JR, Michael C. Thomas, Paul E. Skelley, J. Howard Frank


by Jason
4.1

Rated 4.81 of 5 – based on 28 votes