Norellisoma jelineki sp. nov. - a new species from the Czech Republic (Diptera: Scathophagidae)
Author
Šifner, František
text
Acta Entomologica Musei Nationalis Pragae
2006
2006-11-06
46
193
196
journal article
10.5281/zenodo.5327944
0374-1036
5327944
Norellisoma jelineki
sp. nov.
(
Figs. 1-5
)
Type material.
HOLOTYPE
: J,
CZECH REPUBLIC
:
BOHEMIA occ.,
Sokolov
coal-mining area,
Chodov – Mírová
(5742),
Chodovský
potok brook,
50°14′08″N
12°47′49″E
, meandering, polluted brook, with alders on the banks,
Malaise trap
,
3.viii.2005
,
P. Chvojka
,
J. Ježek
&
J. Macek
leg.
ALLOTYPE
:
♀
,
CZECH REPUBLIC
:
MORAVIA
mer.,
Bílé Karpaty Protected Landscape Area
,
Strání
(7072),
Svinárský
potok brook,
48°52′00″N
17°40′37″E
, beech wood,
Malaise trap
,
27.viii.2005
,
P. Chvojka
,
J. Ježek
&
J. Macek
leg.
The
types are deposited in the collection of the
National Museum
in
Praha
.
Diagnosis.
Body length
8-10 mm
, yellow to brown in primary colour, scutum distinctly darkened dorsally, scutellum yellow, proepimeron distinctly darkened with yellowish central part.
Head. Two orbital setae, 2-3 frontal setae, frontal vitta in upper part brown, in lower part yellow, parafacials yellow, face and genae yellow-white, antennae completely yellow, arista distinctly black and sparsely pubescent; only one long vibrissal seta present; palpi yellow.
Thorax. Acrostichal setae very sparse and almost invisible, five dorsocentral setae (2 + 3), one humeral seta, two intraalar setae and one short supraalar seta, one postalar seta, one pair of discal scutellar setae, one pair of very short, hair-like, apical discal setae, two notopleural setae (posterior one distinctly shorter), one proepimeral seta, one very short anepisternal seta, hair-like prostigmal setae, and one katepisternal seta; all femora, tibiae and tarsomeres yellow; wings hyaline, veins yellow to brown and only weakly distinct.
Abdomen. Male – 4
th
sternite more or less square-shaped, proximally slightly concave and with sparse bristles; lobes of 5
th
sternite short, arched laterally, hairy, covered with dense thorns medially and apically (
Fig. 1
); praegonite narrowed with three bristles: two long and fine apical ones and one lateral projecting at a right angle to the apical ones (
Fig. 2
). Female – 6
th
sternite more or less oval with distinct and slender proximal projection; 7
th
sternite divid- ed into two distinct sclerites caudally (
Fig. 3-4
); 8
th
sternite with six thorns, four marginal and two submarginal (
Fig. 5
).
Differential diagnosis.
Norellisoma jelineki
sp. nov.
differs from the two nearest species,
N. spinimanum
(Fallén, 1819)
and
N. alpestre
(Schiner, 1864)
, by the following characters:
Norellisoma jelineki
sp. nov.
– wing veins only weakly distinct, praegonite of male with two apical bristles and one external lateral bristle, 4
th
abdominal sternite with a distinct projection, lobes of 5
th
abdominal sternite short and arched laterally, 8
thabdominal
sternite of female with six thorns.
Norellisoma spinimanum
– wing veins darkened, praegonite of male with three apical bristles, 4
th
abdominal sternite rectangular, lobes of 5
th
abdominal sternite long, narrow and slightly arched inwards, 8
th
abdominal sternite of female with seven to nine thorns (cf.
ŠIFNER 2003a
, p. 29).
Norellisoma alpestre
– wing veins dark, praegonite of male with three apical bristles, 4
th
abdominal sternite rectangular, lobes of 5
th
abdominal sternite narrow and pointed apically, 8
th
abdominal sternite with five thorns (cf.
ŠIFNER 2003a
, p. 24).
Etymology.
Dedicated to the Czech coleopterologist Josef Jelínek (Department of Entomology, National Museum,
Praha
).
Distribution.
Czech Republic
.