Pristaulacus compressus (Spinola, 1808) **

Moghaddam, Mostafa Ghafouri & Turrisi, Giuseppe Fabrizio, 2018, Taxonomic and faunistic study of Aulacidae (Hymenoptera, Evanioidea) from Iran, with illustrated key to species, Zoosystematics and Evolution 94 (1), pp. 95-108 : 100

Pristaulacus compressus (Spinola, 1808) ** Figs 2 , 3 , 4

Aulacus compressus Spinola, 1808: 48, Holotype ♂. - Italy, Liguria, Habitat in montibus Orerii ( MCSN).

Specimens examined.

2♀, DPPZ. Iran, Kermanshah province, Dudan , 35°01′00″N, 46°11′32″E, 1155m, 20.VI.2016, Malaise trap no. 2 mounted in orchard, leg.: M. Zardouei Heidari ; 1♀, DPPZ. Iran, Kermanshah province, Harsin , 34°16 ’18.89” N, 47°36 ’16.63” E, 1568 m, 05.VII.2016, Malaise trap no. 1 mounted in orchard, leg.: M. Zardouei Heidari.

Distribution.

Austria, Bulgaria, Czech Republic, France, Germany, Greece, Hungary, Iran, Iraq, Italy, Lebanon, Morocco, Poland, Romania, Russia (western territories), Slovakia, Spain, Switzerland, Turkey, Ukraine and former Yugoslavia ( Madl 1990, Turrisi 2007, 2011, 2013a).

Distribution in Iran.

Shiraz ( Madl 1990: 114, MNHN), East-Azarbaijan ( Lotfalizadeh et al. 2017: DU), and Kermanshah province (new record).

Diagnosis.

It is a medium sized species with a body length of 8.8-14.2 mm (excluding ovipositor), fore wing length 6.6-9.5 mm. It is readily distinguished by having a wide occipital carina (width equal to ocellus diameter), a pair of tooth-like processes on each latero-ventral margin of pronotum, reddish-orange hind tarsus, and ovipositor length 1.1-1.3 × fore wing length.

Morphometric ratios.

CIOL/ClL: 1.10; ClL/ClW: 3.33; ClW/OML: 0.69; CoL/CoW: 2.61; EL/EW: 2.42; EL/OML: 2.90; EW/OOCL: 0.40; EW/OTL: 1.21; FWL/FWW: 3.10; HL/ClL: 4.04; HL/TL: 2.07; HW/EW: 9.48; HW/HL: 1.21; IOL/CIOL: 1.36; IOL/EW: 2.91; IOL/HW: 0.30; IOL/OML: 3.48; MsL/MsW: 2.18; MtL/MtW: 2.57; PEL/PEW: 1.90; PL/PW: 0.67; POL/OD: 1.46; POL/OOL: 1.00; SL/SW: 2.89; TL/EL: 1.55.

Hosts.

This species was reared from Chlorophorus adelii Holzschuh, 1974 ( Coleoptera, Cerambycidae ) in tree oak, Quercus sp. ( Madl 1990, Wall 1994). The reared beetle is polyphagous on deciduous trees and is endemic to Iran ( Holzschuh 1974).

Remarks.

The distribution of this species covers mainly the European area (see Turrisi 2011). It shows some intraspecific variation in colour and sculpture of some parts of the body ( Turrisi 2007). The most similar species is P. lindae Turrisi, 2000, having hind tarsi blackish brown, metasoma more extensively red orange, different shape of mesosoma, sculpture of prescutum carinulate rugulose, a longer petiole and ovipositor (see Turrisi (2007, 2011 for more details). The head bears a coarser punctuation than European specimens of P. compressus and P. lindae , but less so than the other two similar species P. samai Turrisi, 2011 and P. rapuzzii Turrisi, 2011.

Figures

Figure 2. Pristaulacus compressus Spinola 1808. female (Iran): A face, frontal view; B head, dorsal view; C head, lateral view; D mesosoma, lateral view; E mesosoma, dorsal view; F petiole and metasoma, dorsal view.

Figure 3. Pristaulacus compressus Spinola 1808. female (Iran): A fore and hind wing; B petiole and metasoma, lateral view; C hind coxa, lateral view; D hind claw, ventral view.

Figure 4. Pristaulacus compressus Spinola 1808. female (Iran): lateral habitus.