A Second Species of Batesiana Chalumeau, 1983 (Coleoptera: Scarabaeidae: Aphodiinae: Eupariini)
Author
Skelley, Paul E.
Author
Vaz-de-Mello, Fernando Z.
text
The Coleopterists Bulletin
2022
2022-12-20
76
4
612
618
http://dx.doi.org/10.1649/0010-065x-76.4.612
journal article
10.1649/0010-065X-76.4.612
1938-4394
13252933
urn:lsid:zoobank.org:pub:6DA30E51-0FD4-48A5-B7B7-744472F20B9F
Batesiana
Chalumeau, 1983
Batesiana
Chalumeau 1983: 143–144
. Stebnicka 2009: 22.
Type
Species.
Euparia tuberculata
Bates, 1887
(by original designation).
Diagnosis.
Eupariini
, body elongate-oval, robust. Head medially gibbous; ventral clypeal and prothoracic indentations form cavity to hold appendages and prothoracic legs when retracted. Pronotum strongly transverse; lateral margin short, straight, crenate; broadly explanate laterally, lacking fringe of setae; posterior margin lacking marginal line. Elytral humeral angle distinctly dentate, not prolonged anteriorly; intervals irregularly tuberculate laterally, some with minute orifices. Protibia with small teeth in apical quarter. Tarsomeres with dense ventral pads of setae in addition to those on margin. Apical meso- and metatibial spurs short, reduced.
Distribution.
Central America and northern South America.
Remarks.
Batesiana
,
Odontolytes
Kozhantshikov, 1916
, and
Napoa
Stebnicka, 1999
form a group of genera readily distinguished from all other New World
Eupariini
by the basal meso- and metatarsomeres being broadened and distinctly longer than the associated spurs. In addition, the ventral surfaces of these tarsomeres are usually covered with a dense pad of setae (other genera have a marginal fringe of setae only).
Batesiana
is distinguished from
Odontolytes
by the tuberculate elytra and from
Napoa
by the widely explanate lateral pronotal margin.
The genus
Odontolytes
has 19 described species and several undescribed species that are morphologically diverse (Stebnicka 2009; P. Skelley, personal observation). Some of these species show intermediate character states among some members of
Odontolytes
,
Batesiana
, and
Napoa
. The genera
Batesiana
and
Napoa
have a few autapomorphies, most notably the tuberculate elytra that distinguish them from
Odontolytes
. The validity of these generic limits, along with the potential paraphyly of these genera, needs to be reviewed.However, generic level analysis of this complex is not the purpose of this paper.For now, we maintain the current generic limits.