Indonesian species of Dilatognathus Kluge 2012 (Ephemeroptera, Leptophlebiidae, Choroterpes s. l.) and species-specific sexual dimorphism in development of maxilla
Author
Kluge, Nikita J.
text
Zootaxa
2014
3786
1
journal volume
46025
10.11646/zootaxa.3786.1.2
ef8a0c66-3103-4a40-8302-0a1a4055811a
1175-5326
231537
09DC7D2C-B15B-4DC8-9D89-FDC0E97D2776
Choroterpes
(
Dilatognathus
)
minor
(
Dang 1967
)
=
Choroterpides minor
Dang 1967
= Dilatognathus/g(1) sp.4: Kluge 2012
Material.
CHINA
, HAINAN
, Miao-Li, 19.XII.
1957
,
coll. N
.
Andrianova
:
4
larvae
: L/S♂, L n♂, L n♀, L n-
1
♀ (ready to molt to L n).
Additional characteristics.
Larva.
Differs from all other species of
Dilatognathus
by shape of tergalii, which are relatively long and narrow (
Fig. 28
). Median incision of labrum shallow, with shallow median convexity and five or three shallow denticles [similar to
Ch
. (
D
.)
cataractae
,
Ch
. (
D
.)
major
and
Ch
. (
D
.)
bogori
]. Structure of maxillary apex in penultimolarva the same as in ultimolarva: with long tusk bearing 3 vestiges of ventral pectinate setae, without ventro-apical flange and without dentiseta.
Imago.
Unknown.
Dimension.
Length of ultimolarva
6–7 mm
.
Distribution
. Indochina Peninsula (
Vietnam
) and Hainan Island.