Description of Dryocosmus destefanii new species (Hymenoptera: Cynipidae: Cynipini) from Quercus suber L. in Italy Author Cerasa, Giuliano Author Verde, Gabriella Lo Author Caleca, Virgilio Author Massa, Bruno Author Nicholls, James A. Author Melika, George text Zootaxa 2018 2018-01-15 4370 5 535 548 journal article 30998 10.11646/zootaxa.4370.5.5 47520ee0-faa4-4f41-9712-cb65e705e1e3 1175-5326 1147345 4FAABC4C-902F-4865-B2E5-47FB0EEEDBB2 Key to the Western Palaearctic Dryocosmus species 1 Females ............................................................................................. 2 - Males.............................................................................................. 10 2 Mesoscutellum entirely smooth, glossy; at most a very narrow strip laterally and posteriorly along emarginated edges sculp- tured; disk of mesoscutellum always smooth, glossy.......................................................... 3 - Mesoscutellum entirely and uniformly coriaceous or rugose.................................................... 5 3 Scutellar foveae more or less distinct, separated by distinct median carina ( Fig. 16 )................................. 4 - Scutellar foveae absent, anteriorly only a transverse impression present ( Fig. 32 ).......................... D. tavakolii 4 Pedicel and scape 1.5–1.7 times broader than flagellomeres ( Fig. 15 ); all flagellomeres nearly of the same width; scutellar foveae subtriangular, separated by median carina wider and shorter, with diverging sides, this short median carina occupies 1/8 of mesoscutellum length ( Fig. 16 ).......................................................... D. destefanii n. sp. - Pedicel and scape at least 2.2–2.5 times broader than flagellomeres; flagellomeres towards the apex broadened, F8–F12 at least 2.0 times as broad as preceding flagellomeres ( Fig. 30 ); scutellar foveae subquadrangular, separated by distinct narrow median carina with non diverging sides, this long median carina occupies 1/4 of mesoscutellum length ( Fig. 31 )...... D. caspiensis 5 Gena not or inconspicuously broadened behind eye, not visible in anterior view................................... 6 - Gena strongly broadened behind eye, easily visible in anterior view ( Fig. 33 ).................... D. cerriphilus , asexual 6 Entire body reddish brown to light yellowish brown......................................................... 7 - Entire body black or brownish black...................................................................... 8 7 Eye large, silvery, transfacial distance nearly equal to height of eye, body uniformly light brown to yellowish..... D. mikoi - Eye small, black, transfacial distance longer than height of eye; head and mesosoma reddish brown, metasoma darker ( Fig. 34 )............................................................................................ D. jungalii 8 All metasomal tergites, except 2nd, with distinct uniform dense micropunctures; mesoscutellar disk reaching mesoscutum in the center, very narrow anterior scutellar depression present only on both sides of this attachment point ( Fig. 35 )................................................................................................... D. kuriphilus - All metasomal tergites, including 2nd, without micropunctures; mesoscutellar disk never reaching mesoscutum; broad com- plete transverse anterior scutellar depression present across mesoscutellum....................................... 9 9 Mesoscutellum distinctly longer than broad, rugose to coriaceous, elongate, with nearly parallel sides, with narrow median carina reaching mesoscutum and dividing medially smooth glossy broad anterior scutellar depression; body usually black or dark brown.................................................................................... D. mayri - Mesoscutellum as long as broad or only slightly longer than broad, dull rugose, without median carina, with rugose anterior scutellar depression; body usually brown to reddish brown.................................... D. cerriphilus , sexual 10 Body entirely yellow, except dark brown or black head..................................................... 11 - Body black or dark brown............................................................................. 12 11 Mesoscutellum smooth, glossy, without sculpture; head black......................................... D. jungalii - Mesoscutellum uniformly coriaceous, head brown...................................................... D. mikoi 12 Diameter of lateral ocellus more than distance between ocellus and margin of eye; mesopleuron uniformly smooth glossy or delicately alutaceous; mesoscutellar disk alutaceous or very delicately coriaceous............................ D. mayri - Diameter of lateral ocellus less than distance between ocellus and margin of eye; mesopleuron smooth glossy, with delicate longitudinal striae in medioanterior part; mesoscutellar disk uniformly coriaceous to rugose............... D. cerriphilus