Description of the larvae and pupae of eight species of the tribe Sitonini Gistel, 1848 (Coleoptera, Curculionidae) from Central Europe
Author
Sprick, Peter
text
Zootaxa
2017
2017-09-28
4324
3
401
435
journal article
31941
10.11646/zootaxa.4324.3.1
24a2ebdb-c5cb-46ef-9302-e491aceb8802
1175-5326
998318
8135023D-Ab89-4B5A-Ae7D-A67189C7Cbe7
Sitona lineatus
(Linnaeus, 1758)
(
FIgS 2–8e
)
Body
. LeNgTH 4.5–5.3 MM, WIDTH 1.3–1.5 MM. SeTAe lONg TO VeRY SHORT. PROTHORAX (
FIg. 2e
) WITH 8
prns
, ONe SeTA PlAceD clOSe TO SPIRAcle. MeSO- AND MeTATHORAX (
FIg. 2e
) eAcH WITH 1 SHORT
prs
AND 4
pds
, AlMOST eQUAl IN leNgTH. EAcH PeDAl AReA WITH 6
pda
, DIFFeReNT IN leNgTH. AbD. VIII (
FIg. 4e
) WITH 1 VeRY SHORT
prs
AND 3
pds; ts
VeRY SHORT.
Head
.
YellOW, SUbcIRcUlAR;
WIDTH
: 0.55
–0.65 MM, leNgTH: 0.65–0.75 MM; eNDOcARINA ReAcHeS 1/2 THe leNgTH OF FRONS.
Des
4
VeRY
SHORT
(
FIg. 5e
).
Fs
1
VeRY
SHORT
,
fs
3
AlMOST INVISIble,
fs
4
SlIgHTlY SHORTeR
THAN
fs
5
.
Les
1
AND
les
2
eQUAl IN leNgTH,
AS
lONg
AS
des
1
.
Ves
1-2
SHORT
, POORlY DeVelOPeD. POSTePIcRANIAl AReA
WITH 3
pes
.
STeMMATA DeVelOPeD. ANTeNNAl bASAl MeMbRANOUS ARTIcle
WITH 4
bASIcONIc SeNSIllAe. LAbRUM (
FIg. 6e
) APPROXIMATelY 2.5 TIMeS
AS
WIDe
AS
lONg; ANTeRIOR MARgIN SINUOUSlY eMARgINATeD; 3
PAIRS
OF
ams
, VARIOUS IN leNgTH: MeDIAN
PAIRS
TWIce lONgeR
THAN
THe lATeRAl SeTAe; 2
PAIRS
OF
als
. LAbRAl RODS AlMOST PARAllel.
ClYPeUS (
FIg. 6e
) 5.0 TIMeS
AS
WIDe
AS
lONg; ANTeRIOR MARgIN cONVeX, lATeRAl MARgINS SINUOUSlY eMARgINATeD; MeDIAN FURROW ReAcHeS 3/4 THe leNgTH OF clYPeUS. EPIPHARYNX (
FIg. 7e
)
WITH 2
PAIRS
OF
als
; 3 PAIRS OF
ams
AND 2 PAIRS OF
mes
. MANDIble WITH 1 blUNT ADDITIONAl TOOTH (clOSe TO APeX). MAXIllA (
FIg. 8e
) WITHOUT
mbs
; bASAl PAlPOMeRe SlIgHTlY SHORTeR AND DISTINcTlY WIDeR THAN THe DISTAl. PRAelAbIUM cORDIFORM, WITH 2 PAIRS OF
ligs
; bOTH PAlPOMeReS eQUAl IN leNgTH, bUT bASAl WIDeR THAN DISTAl ONe;
pslb
3
AlMOST A THIRD THe leNgTH OF THe ReMAININg SeTAe.