Neue und alte neotropische Stenus-Arten (Coleoptera, Staphylinidae) 339. Beitrag zur Kenntnis der Steninen
Puthz, V.
Linzer biologische Beiträge
2014
2014-12-19
46
2
1671
1736
529CX
[680,787,1005,1029]
Insecta
Staphylinidae
Stenus
Animalia
Coleoptera
5
1676
Arthropoda
species
hostilis
1 Abdominal punctation finer and sparser, interstices on tergites 6 and 7 much larger than diameter of punctures (fig. 21)....................................................................................2 - Abdominal punctation dense, interstices on tergites 6 and 7 mostly smaller than diameter of punctures (fig. 20)............................................................................................4 2 Abdomen with long golden pubescence, interstices of punctation on tergites 3-5 larger than diameter of punctures..................................................................................................3 - Abdomen with short, whitish-yellow pubescence, interstices of punctation on tergites 3-5 mostly smaller than diameter of punctures.: E (fig. 67). 3.1-3.8mm (FB 1.9- 2.1mm). Mexico......................................................................................... S. jelinekiPUTHZ 3 Disc of pronotum with some impressions, distinctly elevated in actual middle.: E (fig. 17). 3.1-3.6 mm (FB 1.7-1.8mm) .................................................... S. mixcoatl nov.sp. - Disc of pronotum without distinct impressions or elevated areas.: E (figs 13, 14). 3.5-4.0mm (FB 1.9mm). Panama............................................................... zunilensisSHARP 4 Apterous or brachypterous, EW: EL 1.14.........................................................................5 - Macropterous, EW: EL <1.14..........................................................................................11 5 Apterous, EW: EL 1.49 (fig. 22).: E (fig. 42). 3.0-3.9mm (FB 1.5-1.6mm). Mexico................................................................................................................. S. apterus nov.sp. - Brachypterous/micropterous, EW: EL <1.25......................................................................6 6 Larger, FB 2.0mm.............................................................................................................7 - Smaller, FB <2.0mm ...........................................................................................................9 7 Pronotal disc with a narrow elevated median elevation (figs 24, 29); elytral sculpture vorticose; legs predominantly reddish brown......................................................................8 - Pronotal disc with a median sulcus; elytral punctation mostly distinctly delimited, occasionally slightly confluent; legs dark brown.: Unknown. 3.7-4.3mm (FB 2.0- 2.1mm). Mexico.......................................................................................... S. zoilus nov.sp. 8: E (fig. 38). 3.0-4.9mm (FB 2.0-2.1mm). Mexico, Guatemala, Nicaragua, Honduras...... ............................................................................................. S. schneiderianusBERNHAUER -: E (fig. 39). 3.9-4.5mm (FB 2.0-2.2mm). Mexico....................... S. chiapasensis nov.sp. 9 Smaller, FB 1.4-1.5mm, abdominal punctation very dense, interstices also in the middle of tergites smaller than diameter of punctures.: E (fig. 48). 2.3-2.8mm (FB 1.4-1.5mm). Costa Rica............................................................................ S. kethleyi nov.sp. - Larger, FB 1.6mm, interstices in the middle of tergites larger than diameter of punctures...........................................................................................................................10 10 Elytral punctation mostly distinctly delimited; segment 1 of metatarsi about as long as segment 5.: E (fig. 51). 2.9-3.7mm (FB 1.6-1.7mm). Costa Rica... S. irazumontisPUTHZ - Elytral punctation distinctly coalescent; segment 1 of metatarsi much longer than segment 5.: Unknown. 3.6-4.3mm (FB 1.8-1.9mm). Costa Rica...................................... ..................................................................................................... S. monteverdensis nov.sp. 11 Smaller, FB 1.7mm.........................................................................................................12 - Larger, FB 1.7mm...........................................................................................................14 12 Apical half of femora darkened. Frons shallowly concave...............................................13 - Femora completely reddish brown. Frons deeply concave.: E (fig. 46). 2.6-3.5mm (FB 1.6-1.7mm). Mexico................................................................................ S. pilli nov.sp. 13 Smaller, FB 1.5mm.: E (fig. 49). 3.0mm. Costa Rica..................... S. heredianus nov.sp. - Larger, FB 1.7mm.: Unknown. 3.0-3.5mm. Costa Rica................ S. dybasianus nov.sp. 14 Legs blackish or dark brown (also basal half of femora)..................................................15 - Legs brownish, base of femora mostly lighter..................................................................17 15 Elytra with a rosette in posterolateral half (fig. 23), punctation of pronotum less dense, interstices occasionally larger than diameter of punctures.: E (fig. 71). 3.8-4.5mm (FB 2.2mm). Mexico............................................................................. S. zunicoidesPUTHZ - Elytra densely, slightly confluently punctured, without a rosette in posterolateral half, punctation of pronotum denser, interstices generally smaller than diameter of punctures 16 16 Abdominal punctation very dense, interstices on tergite 5 smaller than half diameter of punctures; elytra longer, EW: EL 1.0.: E (fig. 52). 3.0-3.6mm (FB1.8-1.9mm). Mexico.................................................................................................. S. nimborumSHARP - Abdominal punctation slightly less dense, interstices in the middle of tergite 5 distinctly larger than half diameter of punctures; elytra less long (EW: EL 1.06).: Unknown. 2.9-3.3mm (FB 1.9mm). Peru.............................................. S. zabolicus nov.sp. 17 Abdomen with conspicously long golden pubescence.: E (fig. 16). 3.0-3.5mm (FB 1.8mm). Mexico.................................................................................... S. auricomusPUTHZ - Abdomen with shorter, less conspicuous golden or whitish-yellow pubescence..............18 18 Elytra broader, EW: EL 1.10..........................................................................................19 - Elytra less broad, EW: EL<1.10.......................................................................................20 19 Abdomen very coarsely and desnely punctate, punctures on tergite 7 about as large as apical croass section of antennal segment 2, interstices much smaller than half diameter of punctures........................................................................................................20 - Abdomen less coarsely and slightly less densely punctate, punctures on tergite 7 about as large as basal cross section of antennal segment 3, interstices slightly larger than half diameter of punctures.: E (fig. 62). 3.5-4.7mm (FB 2.0-2.2mm). Mexico, Guatemala................................................................................................. S. hostiferPUTHZ 20: E (fig. 40). 3.5-4.0mm (FB 1.7-1.9mm). Mexico......................... S. corniculifer nov.sp.