Two new fossil representatives of Eurypinae (Coleoptera: Tenebrionoidea: Mycteridae) from Eocene Baltic amber and placement of Neopolypria nigra Abdullah, 1964
Author
Alekseev, Vitalii I.
Author
Pollock, Darren A.
Author
Bukejs, Andris
text
Zootaxa
2019
2019-01-30
4551
1
67
78
journal article
27614
10.11646/zootaxa.4551.1.4
3dd2af36-94a1-4bb9-bbd6-85cffe0d9c22
1175-5326
2622603
875BD2E9-5697-40CC-8C4B-FF786321A8F8
Genus
Glesoconomorphus
gen. nov.
Type
species:
Glesoconomorphus nachzehrer
sp. nov.
Diagnosis.
Glesoconomorphus
gen. nov.
can be differentiated from all extant
Eurypinae
by the following combination of characters: ocular groove distinct; eye without intrafacetal setae; head without frontal furrows; eyes protuberant, non-emarginate; lateral carina of pronotum absent; frontoclypeal suture not indicated; body dorsal surface evenly punctate and setose. Within
Eurypinae
,
Glesoconomorphus
gen. nov.
resembles the New World
Conomorphus
Champion, 1889
and
Stilpnonotus
Gray, 1832
, sharing a distinct, fine ocular groove, narrowly separated from the eyes (Pollock 2016). The new genus can be distinguished from
Silpnonotus
by the dorsal body surface with conspicuous setation and from
Conomorphus
by the non parallel-sided elytra, which are widest posteriorly.
Glesoconomorphus
gen. nov.
can be additionally distinguished from both above mentioned genera by its distinctly smaller and comparatively wider body.
The new fossil genus differs from
Bertinotus
Kirejtshuk & Nel,
2009
in the presence of paramedian depressions at pronotal base, lateral pronotal carinae not distinct in distal half, and distinctly punctate head.
Glesoconomorphus
gen. nov.
differs from
Neopolypria
Abdullah,
1964
in the uniform setation of the body, nonemarginate eyes, and pronotum without lateral carina.
Three common characters of
Eurypinae
were not observed in
Glesoconomorphus
gen. nov.
: (1) male abdominal setal patch (sex of
holotype
is unknown), (2) closure of procoxal cavities, (3) apicoventral binding patch on each elytron.
Etymology.
The name of the new genus is a compound word and combines “
glesum
” (Latin word for amber) and “
Conomorphus
” (name of the similar recent Neotropical eurypine genus). Gender masculine.
Remarks.
The new genus is monotypic, represented by the
type
species only. Therefore the generic description considerably overlaps that of the species.