Derallus Sharp
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https://doi.org/ 10.5281/zenodo.174866 |
publication LSID |
lsid:zoobank.org:pub:7675CC72-B6D3-4EF6-B2EB-FE37BD42CEC1 |
persistent identifier |
https://treatment.plazi.org/id/8D7A87A6-FFE8-FFA4-1F50-BB3FAE2283B4 |
treatment provided by |
Plazi |
scientific name |
Derallus Sharp |
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Key to the Derallus Sharp exclusive of South America
1 Metaventrite with median carina relatively fine and narrow (e.g. Fig. 10 View FIGURES 10 – 11 ). Mesosternal
process forming a bifid or toothed tubercle, but never a single broad pillar. Punctation on pronotum and elytra distinct..................................................................................... 2 - Metaventrite with the median carina very broad ( Fig. 11 View FIGURES 10 – 11 ). Mesosternal process forming a robust, posteriorly curved pillar. Punctation on pronotum and elytra extremely fine ( Fig. 9 View FIGURES 6 – 9 ) ......................................................................................... D. angustus Sharp
2 Interstria X with a single row of fine punctures, or at most an irregular double row (e.g. Figs. 6–7 View FIGURES 6 – 9 ). Aedeagus normal, without extension of basal piece; parameres may be blunt but never quadrate ........................................................................................... 3
- Interstria X with a broad field of punctures, usually three across on anterior half ( Fig. 8 View FIGURES 6 – 9 ). Aedeagus with basal piece greatly extended, with apical portion of parameres bluntly quadrate ........................................................................................ D. rudis Sharp
3 Mesosternal process with posterior tooth distinctly more elevated than anterior tooth, the latter sometimes appearing nearly absent................................................................ 4
- Mesosternal process with two apical teeth more or less coplanar..... D. altus (LeConte)
4 Ground punctation between intervals fine but distinct ( Fig. 7 View FIGURES 6 – 9 ) .... D. terraenovae Oliva
- Ground punctation between intervals present but nearly obsolete.................................. ................................................................................................. D. ambitus d’Orchymont
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