Mycetophagus ( s . str .) lenkae, Háva, 2024

Mycetophagus ( s. str.) lenkae sp. nov.

( Fig. 1-11)

ZooBank:https://zoobank.org/ 678E93D1-C27C-47CA-952D-6A6B3723F804

Holotype, ♂, NE India, Arunachal Pr., Dirang vicinity, 1800 +/- 100 m, 27°21´N- 92°13´E, 8-22.v.2006, P. Pacholátko lgt., ( BMNH). GoogleMaps

Paratypes, 4 ♂, 4 ♀, same data as holotype, (6 BMNH, 2 JHAC) GoogleMaps .

Description of the male

Body ( Fig. 1). – Measurements TL 7.8 mm, EW 3.2 mm; elongate, parallel-sided; weakly convex dorsally, weakly glossy; mostly black, clothed with marmorate black and yellow recumbent setae; elytra black with orange patches.

Head. – With dense, coarse punctures; covered by black, semi-erect setae; labrum brown; eyes laterally prominent in dorsal view, coarsely facetted and emarginate near antennal insertions ( Fig. 4); antennae with 11 antennomeres, antennomeres I- X black, XI black and apically orange, length 3.6 mm ( Fig. 3); palpomeres dark brown, apical maxillary palpomere cylindrical; mandibles dark brown.

Pronotum ( Fig. 5). – Convex dorsally, rugose, with large, dense punctures; clothed with marmorate black and yellow setae; widest at middle, gradually narrowed anteriad and posteriad; anterior margin slightly arcuate; lateral sides distinctly margined, arcuate; basal margin sinuate, with short and circular grooves at sub-basal areas.

Scutellum . – Black, triangular with short, recumbent black setae.

Elytra. – Withyellowand brown recumbentsetae, elongate, subparallelsided, narrowed from apical 1/4; black withlarge orange patches ( Figs. 1-2), striae punctate with small, regular and very deep punctures; interstices flat, narrower than striae.

Reviewer:

Wing. – As illustrated in Fig. 6.

Legs. – With black setae, femora and tibia black, tarsomeres brown, tarsal formula 3 -4 -4, spines brown, tarsal claw brown, anterior tarsomeres as in Fig. 8.

Ventral surface. – Meta- and mesoventrite black, with light brown recumbent setae, finely punctured. Abdominal visible ventrites dark brown, with short black recumbent setae, finely punctured ( Fig. 7). 9 th sternite as in Fig. 10.

Male genitalia ( Fig. 11).

Female. – Habitus similar to male ( Fig. 2); antenna length 3.1 mm; tarsal formula 4 -4 - 4, anterior tarsomeres as in Fig. 9.

Variability. – Body length 7.5 -8.2 mm.

Etymology. – Patronymic, dedicated to my friend and illustrator Lenka Holubová (Únětice, Czech Republic).

Differential diagnosis. – The new species‘ habitus is very similar to other members of the group: Mycetophagus ancora (Reitter, 1884) , Mycetophagus quadriornatus (Reitter, 1901) and Mycetophagus quadripustulatus (Linnaeus, 1760) but differs by its narrowed, parallel-sided habitus, antennal structures and male genitalia.

1 ( 2) Pronotum bicoloured (orange and black), head orange............................. M. ancora (Reitter, 1884) 2 ( 1) Pronotum unicoloured black (or dark brown)

3 ( 4) Head reddish or reddish brown...................................... M. quadripustulatus (Linnaeus, 1760) 4 ( 3) Head black

5 ( 6) Body parallel-oval, length 5 - 6.5 mm; antennae bicoloured, antennal club defined with 5 antennomeres........................................................................ M. qaudriornatus (Reitter, 1901)

6 ( 5) Body narrowly parallel, length 7.3 -8.2; antennae unicoloured (only terminal antennomere bicolorous), antennal club slightly defined.......................................................... M. lenkae sp. nov.