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Coxal Cavities and the Classification of the Adephaga (Coleoptera)
TLDR
Because of extensive parallel and convergent evolution, no classification can be based on the variations of the coxal cavities of a single thoracic segment, as has been attempted in the past; but when used in combination with other characters, the coxa cavities do offer evidence about phylogeny. Expand
TRACHYPACHUS AND THE ORIGIN OF THE HYDRADEPHAGA (COLEOPTERA)
The specialized aquatic families of the Suborder Adephaga have often been united to form a Superfamily Hydradephaga, while the terrestrial families are included in a contrasting SuperfamilyExpand
Northeastern Tiger Beetles: A Field Guide to Tiger Beetles of New England and Eastern Canada
Checklist of Species and Subspecies Introduction How to Recognize Tiger Beetles What is a Species? Tiger Beetle Ecology How to Recognize the Different Species Key to Adult Tiger Beetles Key to ThirdExpand
BEETLES THAT CANNOT BITE: FUNCTIONAL MORPHOLOGY OF THE HEAD OF ADULT RHYSODINES (COLEOPTERA: CARABIDAE OR RHYSODIDAE)
TLDR
The large internal cavity of the head is interpreted as a compromise between a greatly reduced head volume, resulting from reduced jaw musculature, and the need to retain the surface of a full-sized head as part of the wedge-pushing apparatus. Expand
Ski trail effects on a beetle (Coleoptera: Carabidae, Elateridae) community in Vermont
TLDR
Ski trails are strong barriers to dispersal for forest beetles, several of which are flightless or dimorphic and primarily short-winged, and fragmentation of mountain slopes by ski trails, especially those that run perpendicular to the climatic gradient, may put isolated populations at a greater risk of local extirpation. Expand
Carabidae (ground beetles)
The Ground Beetle (Coleoptera: Carabidae) Fauna of Maine, USA
Abstract A survey of the modern carabid fauna of Maine has shown that the fauna consists of 425 documented species, 14 more than previously documented for the Maine fauna in the latest catalog forExpand
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