Review of the world species of Spaniopus Walker, 1833 (Hymenoptera: Pteromalidae), with description of a new species from the Russian Far East
Author
Tselikh, Ekaterina
text
Zootaxa
2015
4058
1
41
65
journal article
39271
10.11646/zootaxa.4058.1.2
c03b8685-e7b1-423d-8db3-8a8c99ee2202
1175-5326
239870
B316C84C-7415-449F-9ABF-5DD600556844
Spaniopus dissimilis
Walker, 1833
(
Figs 13–18
,
40–42
)
Spaniopus dissimilis
Walker, 1833
: 466
;
lectotype
♂ (BMNH, examined).
Type
locality: [
Great Britain
] "near London".
Spaniopus elegans
Foerster, 1856
: 56
;
holotype
♂, perhaps lost (
Bouček 1972: 312
).
Type
locality: [
Germany
].
Polyscelis modestus
Gahan, 1922
: 11
;
holotype
♀ (USNM, not examined).
Type
locality: [
USA
] "Pennsylvania, Hanover".
Synonymy by
Graham (1969: 705)
.
Description.
Female
. Body length
1.9–2.4 mm
; fore wing length 1.4–2.0 mm. Colour: head, mesosoma and metasoma dark metallic green with diffuse coppery lustre; antenna with scape yellowish-brown, pedicel and flagellum brown or sometimes hardly paler basally; legs yellowish-brown; fore with or without infuscate spot under M and S; ovipositor sheath dark brown.
Head in dorsal view 2.0× as broad as long and 1.15–1.20× as broad as mesoscutum; in frontal view 1.2–1.3× broader than high. POL 1.0–1.1× OOL. Eye height 1.40–1.45× eye length and 1.2–1.3× as long as malar space. Frons 1.4–1.5× broader than eye height. Distance between antennal toruli and lower margin of clypeus 0.8–0.9× distance between antennal toruli and median ocellus. Clypeus radially striate, its lower margin weakly emarginate. Mandible formula 3:4. Antenna with scape 0.9–1.0× as long as eye height and 1.3× as long as eye length; pedicel 1.7× as long as broad and 1.3× as long as F1; combined length of pedicel and flagellum 0.9× breadth of head; second anellus distinctly transverse, about 2.0× as long as first anellus; F1 1.3–1.4× as long as broad, hardly constricted basally; F2 and F3 longer than broad, F4 and F6 subquadrate; each funicular segment with one row of dense sensilla; clava 1.9–2.0× as long as broad.
Mesosoma 1.5–1.6× as long as broad. Pronotal collar medially 0.2× as long as mesoscutum. Scutellum finely reticulate, about as long as broad, with noticeable but shallow frenal line. Propodeum medially 0.65–0.70× as long as scutellum; usually with median carina complete, costula rarely complete; nucha subglobose and strongly reticulate, occupying 0.5× length of propodeum. Fore wing 2.3× as long as maximum width; basal cell bare; speculum open; M 1.35–1.56× as long as P and 1.66–1.8× as long as S; P 1.3–1.4× as long as S.
Metasoma ovate-acuminate, 1.36–1.53× as long as broad and 1.2–1.37× as long as mesosoma. Ovipositor sheath projecting slightly beyond apex of metasoma.
Male
. Body length
1.4–1.5 mm
. Colour: antenna with pedicel, F1–F6 and clava yellowish-brown; fore wing hyaline; mid tibia brown. POL 1.45–1.5× OOL. Antenna with pedicel 0.9–1.1× as long as F1; F1–F6 longer than broad; combined length of pedicel and flagellum 1.3× breadth of head; clava 2.6–2.8× as long as broad. Mesosoma 1.8× as long as broad. Fore wing with M 1.0–1.1× as long as P. Inner margin of mid tibia more broadly flattened than its outer margin. Metasoma 0.7–0.8× as long as mesosoma. Otherwise similar to female.
Material examined.
GREAT BRITAIN
:
1 ♂
(
lectotype
), “
LECTOTYPE
”, “grass in fields near London August”, “
Spaniopus dissimile
Walker
”, “Stood under this name in old B. M. Coll C. Waterhouse”, “
Spaniopus dissimilis
(Walk.)
♂ det. M.W.R. de
V. Graham, 1956
”, “B.M.
TYPE
HYM. 5 1810”, “
BMNH
(E) #953702”; 1 ♀, “Ross-shire, Black Isle
vii.1951
N.W. Hussey”,“Ex
Megastigmus infested
seed.”,“Pres by Com Inst Ent B M 1953- 623”,“
Trichomalus
near sunides
MWG. 1952”, “
BMNH
(E) #953704”.
SWEDEN
:
2 ♀,
2 ♂
, “
SWEDEN
. SK. Fjellfota sjö.
31.vii.1938
J.F.P. B.M. 1938-414” (all from
BMNH
).
RUSSIA
:
1 ♀, “Primorskiy Territory, Spassk- Dal’niy,
30 km
W,
3–4.VII.1984
, Belokobylskij”; 1 ♀, “Primorskiy Territory, Natural Reserve “Kedrovaya pad’”,
18.VIII.1976
, Storozheva” (both from
ZISP
).
Distribution.
Belgium
,
Canada
,
Czech Republic
,
Germany
,
Great Britain
, Netherland,
Russia
,
Slovakia
,
Sweden
,
United States of America
(
Noyes 2015
).
Biology.
Primary parasitoid of
Mayetiola destructor
(Say, 1817)
(
Diptera
,
Cecidomyiidae
) (
Thompson 1958
;
Peck 1963
;
Graham 1969
;
Bouček 1972
;
Dzhanokmen 1978
;
Herting 1978
;
Burks 1979
;
Noyes 2015
);
Diplolepis rosae
(Linnaeus, 1758)
(
Herting 1977
;
Jennings 2004
;
Askew
et al.
2006
;
Lotfalizadeh 2007
;
Noyes 2015
) and
Phanacis caulicola
(Hedicke, 1939)
(
Askew
et al.
2006
;
Noyes 2015
) (
Hymenoptera
:
Cynipidae
); lepidopteran pupa of
Coleophora
sp. (
Coleophoridae
) (
Askew 1970
;
Noyes 2015
) and
Elachista poae
Stainton, 1855 (Elachistidae)
(Vidal 1993;
Noyes 2015
). Secondary parasitoid of hymenopteran
Apanteles
sp. (
Braconidae
),
Platygaster vernalis
(Myers, 1917)
and
P. zosine
Walker, 1835 (Platygastridae)
(
Peck 1963
;
Noyes 2015
).
FIGURES 13–18.
Spaniopus dissimilis
Walker
(♀ non type, Great Britain).
13
, habitus, lateral view;
14
, habitus, dorsal view;
15
, head and antenna, lateral view;
16
, head and antenna, frontal view;
17
, fore wing;
18
, scutellum and propodeum, dorsal view.
The records as egg parasitoids of
Erigone atra
and
E. dentipalpis
(
Araneae
: Liniphyidae) (
Vidal 1997
;
Noyes 2015
) should be verified very carefully.
Comparative diagnosis
.
Spaniopus dissimilis
is very similar to
S. amoenus
, the differences between these species being given in the respective keys to the sexes.