Palaearctic Osmia bees of the subgenus Hoplosmia (Megachilidae, Osmiini): biology, taxonomy and key to species
Author
Müller, Andreas
text
Zootaxa
2018
2018-04-30
4415
2
297
329
journal article
30150
10.11646/zootaxa.4415.2.4
4880ad2b-42d6-419d-b115-ecd2f777eea5
1175-5326
1241994
12025774-DB2C-436F-A06C-1A8F9A2B2361
Osmia
(
Hoplosmia
)
pinguis
Pérez 1895
Osmia pinguis
Pérez 1895
: 12
. Type material: Lectotype ♀, by designation of
Tkalců (1974a)
, “La Calle” (Algeria), Muséum National d’Histoire Naturelle Paris.
Osmia indivisa
Benoist 1928: 214
.
Type
material:
Holotype
♂
, “
Marrakech
” (
Morocco
), Muséum National d’Histoire Naturelle Paris. Synonymy in
Zanden (1985)
.
Literature records.
SPAIN:
Ornosa
et al
. (2006)
.
New
records.
MOROCCO
:
Fès-Meknès
:
Ifkern
,
25 km
E Boulemane
, 24–
25.5.1995
(leg.
M. Halada
)
;
Oriental
:
Figuig
,
Jbel
el
Klakh
,
30.5.1996
(leg.
M. Terzo
)
;
Casablanca-Settat
:
El Jadida
, 5.1964 (leg.
W. Schläfle
)
;
Marrakesch-Safi
:
Sidi-Moktar
,
17.3.1992
(leg.
H.J. Flügel
)
;
Drâa-Tafilalet
:
700m
S
Tagounite
,
17.4.2014
(leg.
R. Prosi
)
;
Souss-Massa
:
31 km
SE
Ait Baha
,
4.3.2003
(leg.
Ø. Berg
)
;
20 km
N
Tafraoute
,
14.4.2017
(leg.
A. Müller
)
;
33 km
SW
Sidi-Ifni
,
18.4.2017
(leg.
A. Müller
)
.
ALGERIA
:
M’Sila
:
18 km
E Bow-Saada
,
25.4.1986
(leg.
Gerstmeier
)
;
Guelma
:
Guelma
,
Campus
,
4.5.2008
(leg.
S. Aguib
)
;
Mila
:
Thleghma
,
5.5.2008
(leg.
S. Aguib
)
;
Tebessa
:
Hammamet
,
26.4.2002
(leg.
N. Benarfa
)
.
TUNISIA
:
Bizerta
:
20 km
W
Mateur
,
30.4.2012
(leg.
C. Sedivy
,
A. Müller
)
;
Nabeul
:
5 km
NW
Grombalia
,
11.4.2000
(leg.
P. Hartmann
)
;
Kef
:
2 km
SW
El Kef
,
28.4.2012
(leg.
C. Sedivy
,
A. Müller
)
;
Kairouan
:
48 km
S
Kairouan
,
9.4.1994
(leg.
M. Schwarz
)
;
Kasserine
:
10 km
NW
Thelepte
,
27.4.2012
(leg.
C. Sedivy
,
A. Müller
)
;
Sidi Bouzid
:
Sidi Bouzid
,
12.4.1999
(leg.
K. Denes
)
;
Gafsa
:
Gafsa
,
14.4.2001
(leg.
M. Halada
)
;
Tozeur
:
Tamerza
,
23.3.2001
(leg.
C. Schmid-Egger
)
;
Gabes
:
20 km
N
Metlaoui
,
26.4.2012
(leg.
C. Sedivy
,
A. Müller
)
;
Medenine
:
Djerba
,
3.3.2008
(leg.
H. Schwenninger
)
;
10 km
S
Zarzis
,
22.4.2012
(leg.
C. Sedivy
,
A. Müller
)
;
Tataouine
:
56 km
S
Tataouine
,
11.4.1994
(leg.
M. Schwarz
)
.
Distribution.
Southernmost
Spain
and Maghreb (
Morocco
,
Algeria
,
Tunisia
).
Pollen hosts.
Oligolectic on
Asteraceae
(based on 19 pollen loads from 14 different localities in
Morocco
,
Algeria
and
Tunisia
and on field observations). The species exhibits a near exclusive preference for
Cichorioideae
and
Asteroideae
as pollen hosts (
Fig. 4
): 15 pollen loads exclusively consisted of pollen of
Cichorioideae
(n = 11) or
Asteroideae
(n = 4), while four were mixed loads of pollen of both subfamilies. Flower records:
Chrysanthemum coronarium
,
Leontodon
spec.,
Pallenis spinosa
(label records).
Nesting biology.
The nests are built in empty snail shells of small to medium size with a diameter of
15–30 mm
, e.g.
Otala lactea
(Helicidae)
; nests were also found in elongate conical shells of
Rumina
sp. (
Subulinidae
) with a length of
24–32 mm
and a diameter of
9–12 mm
(Ferton 1920, A. Müller unpublished data). Eighteen nests from
Morocco
(n = 12) and
Tunisia
(n = 6) contained two (n = 6), three (n = 9) or four (n = 3) brood cells (
Fig. 7
). The brood cells are separated from each other by one-layered partitions consisting of leaf pulp. An additional wall of leaf pulp seals the shell at or few millimetres behind its opening. The empty vestibule between the outermost cell and the nest plug varies in length from one fourth to five sixth of one shell whorl. As in
O
.
spinulosa
, the nests are not sealed against their rear end with a basal wall and the outermost cell partition is distinctly more robust than all the other cell partitions and the nest plug, probably acting as a barrier against parasites and predators. In contrast to
O
.
spinulosa
, the shells are never turned after they have been sealed.