Taxonomic revision of the Palaearctic Tetramorium chefketi species complex (Hymenoptera: Formicidae)
Author
Sz, Sándor Cs Ő
Author
Radchenko, Alexander
Author
Schulz, Andreas
text
Zootaxa
2007
1405
1
38
journal article
10.5281/zenodo.399638
6916e2ea-19c9-4427-85bf-f43840857485
11755326
399638
10.
Tetramorium syriacum
Emery, 1922
(figs 68–71)
Tetramorium caespitum
var.
syriaca
Emery, 1922
: 277
(/) first available use of
Tetramorium caespitum
var.
syriaca
Emery, 1909
: 702
(/);
TYPE
MATERIAL:
HOLOTYPE
/: I. a. Brul. [/] “Jaffa” [now Tel Aviv,
ISRAEL
] [—] “
Tetramorium
” [/] “
caespitum
. caesp.” [/] “
v. syriaca Em
” [Emery’s handwriting] (1/ / MSNG); raised to species rank:
Collingwood 1985
: 265;
Redescription of worker
(figs 68–71). Morphometric data of
syriacum
holotype
:
CL: 850; CW: 835; FR: 460; FL: 470; SL: 615; ML: 940; MW: 560; PEW: 260; PEH: 285; NOH: 165; NOL: 215; PEL: 190; PPW: 290; PPL: 210; PPH: 270; SPL: 125; SPSP: 205; EL: 145; EH: 110; ED: 215; Large size, CS 832 [807, 865]. Whole body and appendages dark brown to black. Head slightly longer than broad, CL/CW 1.02 [0.99, 1.04], with slightly convex sides, straight occipital margin and rounded occipital corners. Eyes relatively small, EYE 0.162 [0.155, 0.171]. Frons very wide, FR/CS 0.50 [0.49, 0.55], frontal lobes as wide as frons, or slightly wider FL/FR 1.01 [1.00, 1.02]. Scape short, SL/CS 0.75 [0.70, 0.77], with short dorsal carina basally, strong parallel costulae extending scape. Promesonotal dorsum convex, metanotal groove shallow, but visible. Propodeal teeth long. Petiolar node cubic in profile, NOH/NOL 0.84 [0.78, 0.89], petiole relatively low, PEH/NOL 1.51 [1.43, 1.60]. General appearance coarsely rugose, ground surface microreticulate, dull. Head dorsum longitudinally rugose and microreticulate, occiput and sides rugosoreticulate and microreticulate. Alitrunk dorsum rugosoreticulate and coarsely microreticulate. Mesopleuron usually microreticulate. Dorsum of petiolar node rugosoreticulate and microreticulate, dorsum of postpetiole longitudinally rugulose and microreticulate. Polygonal striation continuous on 1st gastral tergite, posteriorly disrupted. Basal part of first gastral tergite microreticulate (see fig. 7.), MRG 181.7 ±26.4 [150, 230]. Ventral surface of head with several short and few moderately long, straight, or few “C”shape setae arising posterior to buccal cavity (see fig. 5.).
Gynes
and
Males
are unknown.
Material examined
(5 nest series, included
22 workers
).
ISRAEL
—Migdal, Zedek,
15.02.1966
. leg. Kosler (1/ /
MSNM
);
TURKEY
—Islahiye 7 rkm N, ca.
70km
W Gaziantep, Prov. Gaziantep, 500mH
11.05.1997
leg. Schulz & K. Vock (11/ /
PCAS
, 6/ /
HNHM
); Sanliurfa, Camlidere
25km
E Sanliurfa 500mH,
Steppe
11.05.1997
leg. Schulz (4/ /
PCAS
);
Morphometrics.
(
23 workers
measured).
Diagnosis.
T. syriacum
workers differ from related species by the extremely wide frons, FR/CS 0.50 [0.49, 0.55].
For further combination of morphometric characters see
Table 1–2
.
Distribution.
This species seems to be widespread over the Middle East.