Reductodrilus Pic, 1943 [Lampyridae: Ototretinae]

Kundrata, Robin, Hoffmannova, Johana, Hinson, Kevin R., Keller, Oliver & Packova, Gabriela, 2022, Rhagophthalmidae Olivier, 1907 (Coleoptera, Elateroidea): described genera and species, current problems, and prospects for the bioluminescent and paedomorphic beetle lineage, ZooKeys 1126, pp. 55-130 : 55

Reductodrilus Pic, 1943 [Lampyridae: Ototretinae]

Reductodrilus Pic, 1943: 9. Type species. Reductodrilus nigroapicalis Pic, 1943; by monotypy.

Composition and distribution.

Only a single species, R. nigroapicalis Pic, 1943 from northern Borneo (Malaysia: Sabah). Reductodrilus nigroapicalis var. latetestaceus Pic, 1943 should have a subspecific status according to Article 45.6.4. of the Code ( ICZN 1999).

Remarks.

Reductodrilus was initially placed in Drilidae ( Pic 1943; Wittmer 1948). After most Drilidae genera were transferred to different families (e.g., Lampyridae , Lycidae , Omethidae , and Rhagophthalmidae ) by Crowson (1972), Reductodrilus remained in an uncertain position. Kundrata and Bocak (2011a) listed it in Rhagophthalmidae in their revision of Pseudothilmanus . Probable syntypes of both subspecies of R. nigroapicalis are deposited in MNHN. Here, we tentatively transfer Reductodrilus to Lampyridae : Ototretinae based on its suboval and somewhat flattened body, antennae with 11 antennomeres which clearly extend beyond the posterior pronotal margin, head partially covered by pronotum, eyes clearly separated by frons, pronotum transverse, medially elevated, with anterior angles inconspicuous, rounded, and posterior angles projected posteriad (for more details see Janisova and Bocakova 2013). A detailed revision of this genus should improve our understanding of its systematic position.