Eupetedromus Netolitzky
Key to Nearctic species of Eupetedromus Netolitzky 1 Metasternal process marginate anteriorly; antennomeres 1–3 entirely pale yellow in most specimens or antennomeres 2 and 3 slightly infuscate dorsally in a few specimens [eastern: New Brunswick to South Dakota, south to Texas and northeastern Georg...
Main Authors: | , |
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Format: | Other/Unknown Material |
Language: | unknown |
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Zenodo
2006
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Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.6253836 http://treatment.plazi.org/id/443787C0FFC7FFDFFED0FE41FAA0CC2F |
Summary: | Key to Nearctic species of Eupetedromus Netolitzky 1 Metasternal process marginate anteriorly; antennomeres 1–3 entirely pale yellow in most specimens or antennomeres 2 and 3 slightly infuscate dorsally in a few specimens [eastern: New Brunswick to South Dakota, south to Texas and northeastern Georgia] . B. variegatum Say – Metasternal process not marginate anteriorly; antennomeres 1–3 or at least 2 and 3 clearly infuscate on dorsal side. 2 2 Pronotum markedly constricted at base (WP/WP b = 1.33–1.39; n = 10), side markedly widely rounded [eastern: Nova Scotia to Minnesota and South Dakota, south to Iowa, Illinois, West Virginia and Virginia] . B. graciliforme Hayward – Pronotum less constricted at base (WP/WP b = 1.13–1.29; n = 50), side less widely rounded. 3 3 Pronotum entirely or largely reddishbrown or brown, clearly not as dark as head dorsally; femur entirely pale; submedian pale marking of elytral interval 5 quite distinctly set off from markings on adjacent intervals [eastern: Newfoundland to the New England states, west to Iowa] . B. immaturum Lindroth – Pronotum entirely or largely reddishblack to black, as dark as head dorsally; femur infuscate, at least around middle, in the vast majority of specimens; submedian pale marking of elytral interval 5 not clearly set off from markings on adjacent intervals. 4 4 Pronotum more constricted at base (WP/WP b = 1.24 [1.21–1.29]; n = 20); basal edge truncate to slightly oblique toward posterior angle; lateral depression better defined in most specimens, without or with poorly impressed microsculpture meshes; microsculpture on head and lateral margins of pronotum with sculpticells flat; submedian dark marking on elytral interval 2 quite distinctly extended anteriorly to near scutellum; dark marking on elytral interval 4 reaching basal fourth of elytra [transcontinental: Newfoundland to Alaska, south to the Sierra Nevada in northeastern California, Colorado, North Dakota, Michigan, and Pennsylvania; also eastern Siberia]. . B. incrematum LeConte – Pronotum less ... |
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