Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification
Author
Fuhrmann, Juares
Author
Vaz-De-Mello, Fernando Z.
text
European Journal of Taxonomy
2017
2017-09-13
350
1
71
journal article
22059
10.5852/ejt.2017.350
52e4ae01-f51f-4c4a-8a14-9fb5b17788d6
2118-9773
3832682
8D14DBDE-AD13-445B-B2D0-221F19FC7C37
Junkia ceylanica
(
Nonfried, 1894
)
,
species inquirenda
Fig. 22E
Trichoderma ceylanica
Nonfried, 1894: 11
.
Junkia ceylanica
–
Dalla Torre 1913: 310
.
Philochlaenia ceylanica
–
Moser 1913: 293
(
Junkia
synonym of
Philochloenia
).
Plectris ceylanica
–
Frey 1967: 79
(
Junkia
synonym of
Plectris
).
Note
Nonfried (1894)
erected
Trichoderma
for
T
.
ceylanica
based on an undetermined number of specimens from Kandy,
Sri Lanka
(“
Ceylon
”).
Dalla Torre (1913)
proposed
Junkia
as a replacement name for
Trichoderma
Nonfried, 1894
(
non
Stephens, 1848). In the same year
Moser (1913)
proposed the synonymy of
Junkia
with
Philochlaenia
[sic]
Blanchard, 1850
and noted that the
type
locality “
Ceylon
” was probably a labelling error due to the fact that the genus occurs in South America.
Frey (1967)
synonymized
Junkia
with
Plectris
, and reported its occurrence in
Brazil
. The original collection of Nonfried is currently housed in ZMHU, but the
type
series of
T
.
ceylanica
was not found. However, two of Moser’s homeotypes of the species from
Paraguay
were examined (ZMHU,
Fig. 22E
). The revalidation of
Junkia
proposed by the present study is based on these specimens and the original description. Further studies are needed to find or designate primary
types
, check the taxa systematics, and find the correct occurrence of the species.
The present study revalidates
Junkia
, formerly a synonym of
Plectris
, based on the following characters (opposition to
Plectris
): labrum transverse, not prominent (prominent and deeply emarginate), metatarsomere I as long as II (metatarsomere I as long as II–IV,
Fig. 4A
), internal area of metatarsomere V without spine-like setae (with spine-like setae,
Fig. 4A
).