The Neotropical species of the genus Lithocharodes SHARP, 1876 (Coleoptera: Staphylinidae: Staphylininae: Xantholinini) Irmler, Ulrich Beiträge Zur Entomologie = Contributions to Entomology 2021 2021-06-30 71 1 29 85 8Y642 Irmler, 2021 Irmler 2021 [189,424,1779,1806] Insecta Staphylinidae Lithocharodes Animalia Coleoptera 25 54 Arthropoda species peruana sp. nov.   Figs 7a-d, 44 F, 48 C   Type material: male, holotype: Peru, Madre de Dios, Cocha Cashu Bio. Stn., Manu National Park, ( 71°24'24"W, 11°53'45"S),  350 melev., flight intercept trap, 17.-  19.10.2000, leg. R. Brooks, # PERU1B00 042 ( KNHM).  Paratypes: 5 males, 2 females, with same data as holotype (6 KNHM, 1 UIC);  Peru, Tambopata Prov., Madre de Dios Dpt.,  15 kmN Puerto, Maldonado Reserva Cuzco Amazónica( 69°03'W, 12°33'S),  200 melev., Plot#Z1U16, #Z1U19, #Z2U19, #Z2E14, #Z2E15, #Z2E16,Z1U16, #Z2U16, #Z2E17, #Z1 trail 26, Swamptrail, Quebrada Mariposa, flight intercept trap, 19 males, 40 females, 15.6., 17.6., 20.6., 22.6., 24.6., 26.6., 28.6., 3.7., 13.7., 15.7., 16.7., 17.7., 19.7.,  30.6.1989, leg. J. Ashe, R.A. Leschen, #522 (53 KNHM, 6 UIC); same location and collectors but berlesate, Palmaceaeflower fall/logs, Plot#Z2E20-21, male,  25.6.1999( KNHM);  Cocha Salvador, Reserved Zone, Manu National Park( 71°31'36"W, 12°0'13"S),  310 melv., flight intercept trap, 5 males, 2 female, 20.-  21.10.2000, leg. R. Brooks, # PERU1B00 070 (4 KNHM, 1 UIC);  Cocha Cashu Biol. Stn., Manu National Park( 71°24'24"W, 11°53'45"S),  350 melev., flight intercept trap, 1 male, 1 female, 17.-  19.10.2000, leg. R. Brooks, # PERU1B00042 ( KNHM);  Pantiacolla Lodge,  8 kmN El Miradortrail, Alto Madre de Dios River( 71°16'41"W, 12°38'30"S),  800 melev., flight intercept trap, 23.-  26.10.2000, leg. R. Brooks, # PERU1B00 102 ( KNHM); same location and collector but  5.5 kmNW El Miradortrail, Alto Madre de Dios River( 71°15'28"W, 12°39'10"S),  500 melev., flight intercept trap, 3 females, 23.-  26.10.2000, # PERU1B00100 ( KNHM); same region, CICRA Field Station, garden (70.10.10'W, 12.56.94'S),  260 melev., malaise trap, 22.-  29.7.2010, leg. M. Endara, #PER10-07-MAT-008 ( KNHM);  Dept. Loreto, Campamento San Jacinto( 75°51.77'W, 2°18.75'S),  175-215 melev., flight intercept trap, #66, female,  9.7.1993, leg. R. Leschen( KNHM).   Diagnosis: According to the small size, dark colouration and dense punctation of the head,  L. peruanais similar to  L. pampanaand  L. lescheni. The distinguishing characters are already listed there.  Lithocharodes peruanacan be recognized by the extremely divergent head. Males are easy to separate from other  Lithocharodesspeciesby the small, nearly circular aedeagus with a thick, transparent endophallus totally covered by minute teeth.   Description: Length: 4.3 mm. Colouration: Dark brown to blackish; legs and antennae lighter brown. Head: 0.73 mmlong, 0.63 mmwide; eyes large; slightly prominent; postocular space twice as long as eyes; postocular sides distinctly divergent; posterior angles widely rounded; posterior margin slightly convex; in short medial part straight; interantennal furrows long and deep; reaching posterior third of eyes; setiferous punctation deep and dense; partly coriaceous; on average, interstices between punctures less than half as wide as diameter of punctures; small midline impunctate; surface between punctures without microsculpture; shiny. Antennae with first antennomere as long as halflength of head; second and third antennomere conical and slightly longer than wide; subsequent antennomeres distinctly wider than long and increasing in width; fourth antennomere twice as wide as long; tenth antennomere 2.2 times as wide as long; all antennomeres densely pubescent. Pronotum: 0.85 mmlong, 0.57 mmwide; widest in anterior third; anteriad, conically narrowed toward neck; slightly narrowed in middle third; approximately parallel in posterior third; posterior margin slightly convex; setiferous punctation as deep as on head but distinctly sparser; on average, interstices between punctures slightly shorter than diameter of punctures; moderately wide midline impunctate; midline in anterior third wider than in posterior third; surface without microsculpture; shiny. Elytra: 0.60 mmlong, 0.55 mmwide; humeral angles sub-rectangular; sides divergent to posterior angles; posterior angles sub-rectangular; posterior margin slightly convex; retreated to suture; setiferous punctation weaker but denser than punctation on pronotum; on average, interstices between punctures half as wide as diameter of punctures; surface with weak isodiametric microsculpture; less shiny than pronotum. Abdomen with denser but weaker setiferous punctation than on elytra; isodiametric microsculpture deeper than on elytra; surface less shiny than elytra; posterior margin of sternite VII and tergite VII of male nearly straight. Aedeagus oval; endophallus thick, sacklike, covered by numerous minute teeth and folded several times; paramere bilobed; outer lobe simple without any setae; inner lobe moderately slender; slightly curved; apical part flexed; inner face with long setae; setae at base longer than setae at apex.   Etymology: The species name is derived from the coun- try's name, where it was found. 2000-10-19 KNHM R. Brooks Peru 350 -11.895833 Cocha Cashu Bio. Stn. 21 -71.40667 Manu National Park 25 54 1 Madre de Dios holotype 2000-10-19 KNHM, UIC R. Brooks Peru 350 -11.895833 Cocha Cashu Bio. Stn. 21 -71.40667 Manu National Park 25 54 7 2 5 Madre de Dios paratype 1989-06-30 KNHM, UIC J. Ashe & R. A. Leschen Peru Quebrada Mariposa 200 -12.55 Tambopata Prov. 1293 -69.05 Swamp 25 54 59 40 19 Madre de Dios paratype 1999-06-25 KNHM J. Ashe & R. A. Leschen Peru Quebrada Mariposa 200 -12.55 Palmaceae 1293 -69.05 Plot 25 54 1 Madre de Dios paratype 2000-10-21 KNHM, UIC R. Brooks Peru Manu National Park 310 -12.003612 Cocha Salvador 21 -71.52667 Reserved Zone 25 54 7 2 5 paratype B00042 2000-10-19 KNHM R. Brooks Peru 350 -11.895833 Cocha Cashu Biol. Stn. 21 -71.40667 Manu National Park 25 54 2 1 1 paratype 2000-10-26 KNHM R. Brooks Peru River 800 -12.641666 Pantiacolla Lodge 21 -71.27806 Alto 25 54 1 Madre de Dios paratype B00100 2000-10-26 KNHM R. Brooks Peru River 500 -12.652778 Alto 21 -71.257774 River 25 54 3 3 Madre de Dios paratype 2010-07-29 KNHM M. Endara Peru 260 Field Station 25 54 1 Madre de Dios paratype 1993-07-09 KNHM R. Leschen Peru 195 -2.3125 Dept. 13 -75.86283 Campamento San Jacinto 25 54 1 Loreto paratype