A revision of Oriental Teloganodidae (Insecta, Ephemeroptera, Ephemerelloidea)
Author
Sartori, Michel
Museum of zoology, Palais de Rumine, Place Riponne 6, CH- 1014 Lausanne, Switzerland. E-mail: michel. sartori @ vd. ch Laboratory of Aquatic Entomology, Florida A & M University, Tallahassee, FL 32307, USA
Author
Peters, Janice G.
Author
Hubbard, Michael D.
text
Zootaxa
2008
2008-12-05
1957
1
1
51
https://biotaxa.org/Zootaxa/article/view/zootaxa.1957.1.1
journal article
10.11646/zootaxa.1957.1.1
11755334
5241137
022AA6BC-851A-4980-9879-060B38FA51A5
Teloganodes dentatus
Navás, 1931
(
Figs. 4, 6
)
Teloganodes dentata
Navás, 1931:19
.
Material examined.
In the collections of the
MNHN
is housed the
holotype
of
Teloganodes dentatus
described by Navás in 1931. According to the ICZN, the ending –
odes
is masculine; therefore the adjective used by Navás to name his species should be spelled
dentatus
and not
dentata
.
The species is described in detail and illustrated. Although Navás is supposed to have seen several specimens (“varios ejemplares”) collected in Khandala (
India
)
20–22 May 1928
and
14 October 1927
, a single specimen is housed in Paris. It is a pinned male imago in perfect condition; no piece broken except the tip of the cerci. It bears the following labels:
i) Khandala (
India
) 14.X. [19]27 [white label handwritten]
ii)
Teloganodes dentata Nav.
[handwritten] P. Navás S.J. det [typewritten]
iii)
Typus
[red label handwritten]
iv) Museum Paris Longin Navas legit 19 [white label typewritten]
Description.
This specimen shares most of the characters found in
T. tristis
, particularly: upper part of compound eyes reddish brown, vein MP
2
of forewing long,
3 intercalary
veins in cubital area of forewing, hindwing broad (
Fig. 4
), no posterior processes on mesoscutellum, gill socket vestiges on segments II–VI, terminal filament absent, cerci whitish with purple rings. The forelegs have the following proportion: tibia ca.1.8 times femur length and 1.3 times tarsi length. It mainly differs from
T. tristis
by the darker colour of the abdomen, and shape of the costal process of the hind wing. Genitalia (
Fig. 6
) resemble the subimaginal genitalia of
T. tristis
(as in
Fig. 5
), i.e. gonopods 3-segmented, the first segment slightly longer than the second, the third one about two times as long as wide. Penis lobes fused for entire length except the apex “U” shaped. Ventrally a groove is visible that ends at the middle of the penes. The styliger plate is markedly convex.