Deltorhinum Harold, 1867
publication ID |
https://doi.org/ 10.5281/zenodo.199593 |
DOI |
https://doi.org/10.5281/zenodo.6196881 |
persistent identifier |
https://treatment.plazi.org/id/0C6D87F1-FFD7-F53A-3ABA-FA7E381DFDFE |
treatment provided by |
Plazi |
scientific name |
Deltorhinum Harold, 1867 |
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Deltorhinum Harold, 1867 View in CoL
Harold 1867: 96 [original description]
Harold 1869: 1003 [catalogue]
Gillet 1911: 54 [catalogue]
Luederwaldt 1931: 366 [identification key to genus] Paulian 1938: 234 [identification key to genus] Blackwelder 1944: 205 [checklist]
Vulcano & Pereira 1967: 533–603 [identification key to genus] Vaz-de-Mello 2000: 192 [checklist]
Medina et al. 2001: 134 [checklist]
Vaz-de-Mello 2008: 12 [systematic position] Almeida & Mise 2009: 237 [mention]
Redescription. Small to moderate in size (6.5–14.0 mm). Body oval to elongate-oval. Color light brown in teneral specimens to black, with distinct metallic sheen only in D. robustum . Clypeus regularly tapering toward apex, which is moderately to strongly upturned; apex at most broadly emarginate, never with two distinct teeth. Clypeofrontal suture always distinctly carinate. Pronotal anterior portion modified, produced into a single broad or two narrow lobate projections and additional modifications; simple only in D. robustum , which has a somewhat triangular impression on each side of midline. Pronotal disc with a deep and well defined longitudinal sulcus along most of midline. Elytra strongly convex, with 7 striae on disc, stria 8 distinct from stria 9 only at apex. Elytral pseudepiplera concealed in dorsal view. Pygidium narrowly sulcate basally, sulcus broadly arcuate or slightly bisinuous in distal view. Protibia obliquely truncate anteriorly; protarsi atrophied and usually broken off in non teneral individuals. Mesotibiae and metatibiae very wide at apex in ventral view; tarsi reduced in length, first tarsomere at most 1.5 X longer than wide at apex, usually as wide at apex as long. Sternite 8 unmodified medially. Aedeagus unmodified, parameres simply tapering toward apex, lacking denticles, hooks or rough surface. Internal sac with variously shaped sclerites, usually with a large apical sclerite seemingly forming a guide for the flagellum.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Scarabaeinae |