Aphidius linosiphonis sp. n., a new member of the aphid parasitoid guild associated with Galium Author Tomanovic, Zeljko Author Starý, Petr text Zootaxa 2001 2001-08-29 6 1 4 journal article http://doi.org/10.5281/zenodo.4620260 e3033cfe-691f-4f63-bb08-7fdb93ebdde9 1175­5326 4620260 C851A2E0-44F0-42A4-AC91-66A69DDD469A Aphidius linosiphonis sp. n. (Figs. 1­9 ) Diagnosis . This species is very similar to Aphidius matricariae Haliday , in having a similar tentorial index and 14­15 ­segmented antennae. The most prominent differences from A. matricariae are the 4 ­segmented maxillary and 3 ­segmented labial palpi, elongate pterostigma, and slender first flagellomere (F 1 ). The pterostigma is extremely elongate, 4.5­4.7 times as long as wide, and F 1 is 3.0­ 3.3 times as long as wide. In contrast, A. matricariae populations have the pterostigma 3.5 ­4.0 times as long as wide, F 1 2.5 ­3.0 times as long as wide, and 3 ­segmented maxillary and 2 ­segmented labial palpi ( Starý 1973 ; Pennacchio 1989 ; Mescheloff & Rosen 1990 ). Female . Body length about 2 mm .. Eyes oval. Antennae 14­15 ­segmented (Fig. 1 ). First flagellomere (F 1 ) subequal to second (F 2 ), and 3.0­ 3.3 times as long as its median width (Fig. 2 ). Antenna moderately thickened at the apex. Setae on flagellomeres semierect. Middle flagellomeres about 2 times longer than wide. F 1 without longitudinal placodes, and F 2 with 1­3 longitudinal placodes (Fig. 2 ). Maxillary palpi 4 ­segmented (Fig. 3 ), labial palpi 3 ­segmented (Fig. 4 ). Tentorial index 0.35­0.40 . Pterostigma elongate and slender, 4.5­4.7 times as long as wide and 1.2­1.3 times longer than metacarpus length (Fig. 5 ). First radial abscissa (R 1 ) 1.4­1.6 times longer than the second R 2 . Central areola on propodeum wide and well defined (Fig. 6 ). Tergite 1 , 3.0­ 3.2 times longer than its width at the level of spiracles, with prominent mediodorsal carina and 8­11 costulae on its anterolateral area (Fig. 7 ). Dorsal margins of the third valvulae clearly concave (Fig. 8 ), second valvulae slightly concave on dorsal margin. FIGURES 1­9 . Aphidius linosiphonis n. sp. 1 , female antenna (lateral aspect). 2 , base of antenna (lateral aspect). 3 , maxillary palpus. 4 , labial palpus. 5 , forewing (R 1 ­ first radial abscissa; R 2 ­ second radial abscissa). 6 , propodeum. 7 , tergite 1. 8 , third valvulae. 9 , aedeagus. 1 pedicel brown, remaining parts of antenna brown. Thorax brown with yellowish prothorax and mesopleurae. Legs yellow with coxae and tarsi somewhat darker. Tergite 1 yellow. Third valvulae dark. Male . Antennae 16­17 ­segmented. Tergite 1 2.7­2.9 times longer than its width at spiracles. Aedeagus stout (Fig. 9 ). Etymology . The name of the new species is derived from its aphid host. Holotype female : Yugoslavia , Mt. Tara ­ Derventa Canyon ( type locality), 31 .V. 1998 , reared from Linosiphon sp. on Galium silvaticum , coll. Z. Tomanovic. Holotype slide mounted and deposited in the Belgrade Natural History Museum, number 327 / 98 . Paratypes : 4 females and 11 males , same collection data, as holotype with 3 females and 4 males mounted on slides and 1 female and 7 males dry mounted. Paratypes deposited in the Belgrade Natural History Museum, numbers 328 / 98­342 / 98 . Other specimens and localities (deposited in the collection of P. Starý, Institute of Entomology, Èeské Budejovice): Czech Republic : Linosiphon galiophagum (Wimshurst) : Karlštejn, Bohemia centralis, 14 .V. 1958 , on Galium silvaticum , mixed forest, sample 58 /9, 3 females 1 male , coll. P. Starý; 27 .V. 1960 , sample 60 /107, 2 males , coll. P. Starý; 1962 , sample 62 /26, 1 female , coll. P. Starý; 20 .V. 1964 , sample 64 /20, 5 females , coll. P. Starý; 26 .V. 1964 , sample 64 /21, 2 females 2 males , coll. P. Starý; Hostýn, Moravia orientalis, 9 .VI. 1960 , on Galium silvaticum , mixed forest, sample 60 /292, 2 females 1 male , coll. P. Starý; Pouzdrany, Moravia merid. 4 .VI. 1960 , on Galium silvaticum , sample 60 /213, 1 female 1 male , coll. J. Holman. Slovak Republic : Belánské Tatry, Hviezdon lodge, 22 .VI. 1974 , on Galium silvaticum , sample 74 /175, 1 female , coll. P. Starý.