Lithocharodes fuscula SHARP, 1885

Irmler, Ulrich, 2021, The Neotropical species of the genus Lithocharodes SHARP, 1876 (Coleoptera: Staphylinidae: Staphylininae: Xantholinini), Beiträge Zur Entomologie = Contributions to Entomology 71 (1), pp. 29-85 : 47

publication ID

https://doi.org/ 10.21248/contrib.entomol.71.1.029-085

persistent identifier

https://treatment.plazi.org/id/3A6C87E6-FF8A-4C61-FF0D-D92D039700B1

treatment provided by

Felipe

scientific name

Lithocharodes fuscula SHARP, 1885
status

 

Lithocharodes fuscula SHARP, 1885 View in CoL

Figs 40 View Fig a-d, 43 M, 47 D

Lithocharodes fuscula SHARP, 1885: 494 View in CoL

Type material examined: male, lectotype (present designation): Guatemala, San Geronimo, leg. Champion ( BMNH); female, syntype: Guatemala, near Guatemala City, leg. Champion ( BMNH) .

Diagnosis: Among the two syntypes from the BMNH studied, one male was found. This specimen was dissected and labelled as lectotype. Lithocharodes fuscula resembles a group of dark unicoloured species, smaller than 4 mm in size: L. verhaaghi and L. silvicola . The species of this group are extremely similar and can hardly be separated without studying the aedeagus. Male endophallus of L. fuscula has no spiral torsions.

Description: Length: 3.7 mm. Colouration: Totally brown; elytra slightly darker brown; legs and antennae slightly lighter brown.

Head: 0.70 mm long, 0.58 mm wide; eyes slightly prominent; postocular sides twice as long as eyes; posterior angles widely rounded; posterior margin slightly emarginate; interantennal furrows distinct; reaching posterior third of eyes; setiferous punctation moderately dense and deep; on average, interstices between punctures as wide as diameter of punctures; interstices on anterior vertex slightly shorter, on posterior vertex slightly wider; wide midline impunctate; surface with extremely weak microsculpture; shiny. Antennae with first antennomere slightly shorter than half-length of head; second and third antennomere conical; second slightly longer than wide; third as long as apical width; subsequent antennomeres wider than long and increasing in width; fourth antennomere twice as wide as long; tenth antennomere 2.5 times as wide as long; all antennomeres pubescent. Pronotum: 0.75 mm long, 0.53 mm wide; widest in anterior third; anteriad, conically narrowed toward neck; posteriad, distinctly narrowed in middle third; in posterior third nearly parallel; posterior angles sub-rectangular; posterior margin nearly straight; setiferous punctation deeper than on head but partly sparser; wide midline impunctate; surface without microsculpture; glossy. Elytra: 0.70 mm long, 0.62 mm wide; humeral angles subrectangular; sides slightly divergent posteriad; posterior angles sub-rectangular; posterior margin nearly straight; setiferous punctation deep and dense; on average, interstices between punctures half as wide as diameter of punctures; surface with extremely weak microsculpture; shiny. Abdomen with finer setiferous punctation than on fore-body; punctation at base of segments denser than at apex; surface with weak irregular microsculpture; shiny; sternite VII of male evenly narrowed toward obtuse apex; posterior margin of tergite VII of male straight. Aedeagus oval with anterior angles sub-rectangular; endophallus in anterior half weakly sclerotised; posterior half distinctly sclerotised; partly covered by minute teeth and partly by long teeth.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Lithocharodes

Loc

Lithocharodes fuscula SHARP, 1885

Irmler, Ulrich 2021
2021
Loc

Lithocharodes fuscula

SHARP, D. 1885: 494
1885
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