Megalopinus cephalotes
Creators: name: Puthz, V.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Megalopinus
Megalopinus cephalotes

description: Key to the species of the cephalotes -group
1 Elytra without impressions..................................................................................................2
- Elytra with impressions.......................................................................................................4
2 Elytra black.: E short, median lobe without distinctly delimited, strongly sclerotized structures, apical tip small, asymmetrical, parameres slender. 3.0-3.6mm. Brasilien, Bolivia, Peru, Colombia, Venezuela, Panama ............................... glabripennis (L. BENICK)
- Elytra not black...................................................................................................................3
3 Elytra mainly reddish yellow.: E long, median lobe without distinctly delimited, strongly sclerotized structures, apical tip asymmetrical, parameres slender. 3.3-3.6mm. St. Vincent ............................................................................................... smithi (CAMERON)
- Elytra with two humeral and two posteromedial reddish spots.: E slender, median lobe without distinctly delimited, strongly sclerotized structures, apical tip almost symmetrical, parameres slender. 3.1-3.6mm. Ecuador ....................... levigatipennis nov.sp.
4 Each elytron with more than one longitudinal impression..................................................5
- Each elytron with only one longitudinal impression...........................................................6
5 Elytra with two deep and narrow longitudinal impressions (fig. 85). 3.5-4.0mm. Mexico .............................................................................................. bisulcatus (L. BENICK)
- Elytra in the interior half wrinkled longitudinally (fig. 84). 3.5mm. Costa Rica .................. .......................................................................................................... ruginosipennis nov.sp.
6 Elytra unicolorous, black to brownish.................................................................................7
- Elytra with a posteromedial spot.: E about as in fig. 181, parameres broad. 3.5- 4.0mm. Argentina ................................................................................. vianai (BERNHAUER)
7 Elytra near the longitudinal impression umbonate (fig. 83).: Aedeagus slender, median lobe with a short, curved, stronger sclerotized tube, apical tip slightly asymmetrical; parameres slender. 3.4-3.8mm. Costa Rica ...................... callipennis nov.sp.
- Elytra without a bumplike raised area.................................................................................8
8 Longitudinal impression of elytra shorter, sometimes scarcely distinct, at most one third as long as one elytron. Frons nearly flat with a few punctures.: E (fig. 181), parameres broad. 2.7-3.7mm. Colombia, Brasilien, Argentina, Paraguay, Venezuela, Costa Rica, Mexico .......................................................................... cephalotes (ERICHSON)
- Longitudinal impression of elytra longer, longer than one third of one elytron. Frons less flat with a distinct stamp-like raised area and with numerous punctures.....................9
9: E short, median lobe without distinctly delimited, strongly sclerotized structures, apical tip small, symmetrical, parameres moderately slender. 3.0-3.6mm. Colombia, Brasilien, Argentina ............................................................................. muellerianus nov.sp.
- Frons and pronotum coarsely and sparsely punctate, smooth areas are larger than punctate areas. 3.0-4.3mm: E: parameres slender. Mexico, Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, Trinidad, Venezuela, Suriname, Guyana, Colombia, Ecuador, Peru, Bolivia, Brasilien, Paraguay, Argentina .......... spinosus (SHARP)
description: Published as part of Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), pp. 613-834 in Linzer biologische Beiträge 44 (1) on page 682, DOI: 10.5281/zenodo.5328273