A new fossil genus of the family Glaphyridae (Coleoptera: Scarabaeoidea) from the Lower Cretaceous Yixian Formation
Author
Wang, Bo
Author
Zhang, Haichun
text
Zootaxa
2011
2811
47
52
journal article
10.5281/zenodo.202987
71791e06-ffac-4895-8de0-e0c3557537cf
1175-5326
202987
Lithohypna chifengensis
Nikolajev, Wang
, & Zhang, new species
(
Figs. 8–10
)
Holotype
.
A well-preserved imprint of the dorsal side
NIGP
152467 (
Figs. 8–9, 11
). Deposited in the Nanjing Institute of Geology and Palaeontology (
NIGP
), Chinese Academy of Sciences.
Paratype
.
A single well-preserved imprint of the abdominal side
NIGP
152468 (
Figs. 10, 12
). Deposited in the Nanjing Institute of Geology and Palaeontology (
NIGP
), Chinese Academy of Sciences.
Etymology.
Named for the
type
locality, Chifeng City.
Diagnosis.
See the generic diagnosis above.
Description.
Body length nearly
15 mm
. Dorsal surface of clypeus with short, horn-shaped tubercle. Pronotum as wide as long, trapezoidal, narrowing anteriorly, with rounded lateral margins; anterior angles acute; posterior angles widely rounded. Elytra widest in the middle; about 2.8 times as long as wide. Protibia with three teeth on the outer margin; apex of the middle denticle is directed outward.
Measurements (
Holotype
) Body length
14.2 mm
(from mandibular apex to pygidial apex); head width
2.63 mm
; pronotum length 3.0 mm pronotum width
4.26 mm
; elytron length
8.31 mm
, width
2.95 mm
; profemur width
0.81 mm
; protibia length at least
2.27 mm
; protarsus length at least
2.29 mm
(excluding the apex of fifth protarsomere); mesofemur width
1.06 mm
; mesotibia length
2.33 mm
; mesotibia apical width
0.57 mm
; metafemur width
1.23 mm
; metatibia length
3.47 mm
; metatibia apical width
0.79 mm
.