The Survey Of The Himalayan-Sino-Tibetan Species Of The Genus Dicerogastra Fletcher, 1961 (Lepidoptera: Noctuidae, Hadeninae), With The Description Of Two New Species From China
Author
Ronkay, László
Author
Gyulai, Péter
Author
Ronkay, Gábor
text
Acta Zoologica Academiae Scientiarum Hungaricae
2017
2017-03-03
63
1
17
28
http://dx.doi.org/10.17109/azh.63.1.17.2017
journal article
10.17109/AZH.63.1.17.2017
2064-2474
5734576
Dicerogastra euxoides
sP. n.
(
Figs 7–10
,
19–22
,
27–28
)
HolotyPe
, male (
Figs 7–8
),
China
,
NorthYunnan
, DiqingTibetanAutonomousPrefecture, 5 kmSofDeqin,
3356 m
,
19.VI.2009
, leg.
B. Benedek
, slideNo.
GYP
2333m
(coll.
PGY
).
ParatyPes
.
China
.
2 males
, withthesamedataastheholotyPe; (coll.
PGY
)
;
1 male
, fromthesamelocalityastheholotyPe,
16-17.VI.2009
(coll. G. Ronkay);
1 male
, NorthYun- nan, DiqingTibetanAutonomousPrefecture, 8 kmNNEShangriLaatNairivillage,
3300 m
,
14.VI.2009
, leg.
B. Benedek
(coll.
PGY
)
;
1 female
,
Sichuan
, 100 kmWofManiganggo,
3400 m
,
26.VI.2004
, leg.
S. Nykl
, slideNo.
GYP1894
f (coll.
PGY
)
;
2 males
,
4 females
,
Yunnan
,
Deqin
,
3400 m
, N28°30’, E98°55’,
30.V.-3.VI.2011
, leg.
J. Klir
, slide
No.
GYP
3952m
(coll.
M. Dvořák
)
;
2 males
, fromthesamelocality, slideNosRL
11273m
,
RL
11274m
(coll.
L. Srnka
)
.
Diagnosis – WingsPan
32–34 mm
, lengthofforewing
14–16 mm
. Vesti- tureoftheheadandbody, groundcolourofwingsvariousshadesofbrown, costalmarginandaPicalPatchsomewhatlighter, antemedialandPostmedial crosslineswhitish, subterminallinePalewhitish-ochreous; orbicularstigma tiny, circular, reniformstigmaelliPtical, bothstigmatabrown, latterincom- Pletelywhitishencircled; claviformstigmadarkbrown.
ThenewsPecies (
Figs 7–10
) differsfromtheeXternallymostsimilar
D. ferrisparsa
(
Figs 1–2
) byitsPalergroundcolour, Particularlyinthefemales, moredistinctlymarkedandsomewhatdifferentlyshaPedantemedialand Postmedialcrosslines, moresinuousandlessdistinctlymarkedsubterminal line, andthesomewhatdarkerhindwinginnerareawithstrongermarked, lunulatediscalsPot.
Dicerogastraeuxoides
iseasierdistinguishedfromtheotherHimalayan sPecies,
D. costigerodes
(
Figs 3–6
) byitssmallersize (wingsPan 32–34 mmand
37–39 mm
, resPectively), muchlessProminentforewingcostalstriPeand whitishdefinedantemedialandPostmedialcrosslines, themoresinuousand lesssharPlymarkedsubterminallineand, lastbutnotleast, bythealmost unicolorousbrownhindwingwithwell- visibledarkcellularlunule. Thedifferentialdiagnosisof
D. euxoides
and
D. jensergabori
isgivenundertheDiagnosisofthelattersPecies.
Malegenitalia (
Figs 19–22
) – ComParingthemaleclasPingaPParatuses ofthethreecloselyrelatedsPecies,
D. euxoides
hasthesmallestcucullus, largestandmostventro- aPicallyProjectedamPulla, andthelongestsPinesatbase ofharPe. Additionally, thevesicaof
D. euxoides
isarmedbyveryshort, ter- minallyPositionedcornutifieldwhereasitismuchlongerintheothertwo sPeciesandneverlocatedatthePosteriorendofthevesica.
Figs 21–24.
Male genitalia of
Dicerogastra
and
Feliniopsis
sPecies.
21–22 =
D. euxoides
sP. n.
, ParatyPe, RL11274m, 21 = clasPingaPParatus; 22 = aedeagus; 23–24 = Feliniopsisalbiflexura
(Walker, 1857),
holotyPe
, BMNoct.
15787m
, 23 = clasPingaPParatus; 24 = aedeagus
Femalegenitalia (
Figs 27–28
) – Thefemalegenitaliaof
D. euxoides
differ fromthoseof
D. jensergabori
bythelackofsclerotisationfromthedistalPartof aPPendiXbursaeandthesomewhatshorter, mediallymoresclerotisedductus bursae; thedifferencesbetween
D. euxoides
andthetwosouthernHimalayan sPeciesarediscussedindetailundertheDiagnosisof
D. costigerodes
.
Distribution – ThenewsPeciesisknownfromthesouth-easternborders oftheTibetanPlateauinChina, fromYunnanandSichuan. Thisdistribution PatternhelPsthecorrectidentification, sincenosymPatricoccurrencewith thesouthernHimalayansPecieshithertodescribedisknown.
Etymology – ThesPecificnamereferstothesuPerficialsimilarityofthemalegeni- taliawiththoseofthe
Euxoa
Hübner, 1821 sPecies.
TheverylongsPine- bundleandthe longPenicularhair- tuftresemblesinamacroscoPicviewthetwocharacteristicsclerotised Processes (amPullaandsacculareXtension) ofan
Euxoa
clasPingaPParatus.