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