Comparative morphology of the endophallic structures of the genus Laius (Coleoptera, Melyridae), with the descriptions of three new species
Author
Yoshitomi, Hiroyuki
text
European Journal of Taxonomy
2014
2014-09-25
97
1
29
journal article
21939
10.5852/ejt.2014.97
37e33fa8-2cb4-4693-86c6-77bb430b5baa
2118-9773
3838926
D58FA727-9A10-4023-B178-9E6CCD1EA457
Laius sericatus
Champion, 1924
Figs 3H
,
6E
,
7H
,
8H
,
9H
Laius sericatus
Champion, 1924: 301
.
Material examined
2 ♂♂
(
NMW
), “
SEYCHELLES
:
Mahé Anse aux Coubes
23.03.2011
leg.
M. Madl
”;
1 ♂
,
1 ♀
(
NMW
), ditto but “
21.03.2011
”;
3 ♂♂
,
2 ♀♀
(
1 ♀
in ethanol;
NMW
,
EUMJ
), “
SEYCHELLES
:
Mahé Petite Police
intertidal
28.10.2010
, leg.
M. Madl
”
.
Redescription
Male
HL/HW 0.74–0.75 (0.75); PW/PL 1.27–1.31 (1.29); EL/EW 1.40–1.52 (1.47); EL/PL 2.90–3.04 (2.95); EW/PW 1.54–1.58 (1.56); TL/EW 2.27–2.42 (2.37). Antennae (
Fig. 7H
) long; antennomere I stout; antennomere III (
Fig. 8H
) transverse, shallowly and narrowly concave in dorsal portion, L/W = 0.72; approximate ratio of each antennomere (n = 1) as 6.6: 1.0: 4.7: 1.7: 1.7: 1.6: 1.6: 1.6: 1.6: 1.6: 2.6. Caudal margin of tergite VII concave. Aedeagus (
Fig. 9H
) about
1.22 mm
, round at aedeagal apex. Gonoporal piece (
Fig. 3H
) straight, wide,
0.62 mm
in GL; GL/AL 2.11. Ligula (
Fig. 3H
) short, slightly curved; LL
0.24 mm
; LW
0.09 mm
; LL/LW 2.69; GL/LL 2.58.
Female
HL/HW 0.77–0.92 (0.85); PW/PL 1.27–1.29 (1.28); EL/EW 1.41–3.53 (2.47); EL/PL 2.73–2.89 (2.81); EW/PW 0.61–1.59 (1.10); TL/EW 2.37–5.82 (4.10). Antennae (
Fig. 7H
) long; antennomere III relatively long, L/W = 2.73; approximate ratio of each antennomeres (n = 1) as 8.0: 1.0: 4.8: 2.0: 2.0: 2.0: 2.0: 2.0: 2.0: 2.0: 3.4.
Measurements
Male (n = 3): TL 5.20–5.55 (5.43) mm; HL 0.90–0.95 (0.92) mm; HW 1.20–1.28 (1.23) mm; PW 1.40– 1.55 (1.47) mm; PL 1.10–1.18 (1.14) mm; EL 3.20–3.50 (3.37) mm; EW 2.15–2.45 (2.30) mm. Female (n = 2): TL 4.62–4.95 (4.79) mm; HL 0.85–0.92 (0.89) mm; HW 1.00–1.10 (1.05) mm; PW 1.23–1.40 (1.32) mm; PL 0.95–1.10 (1.03) mm; EL 2.75–3.00 (2.88) mm; EW 0.85–1.95 (1.40) mm.
Distribution
Seychelles
(
Mahé
, Félicité Isls.).