Table 1 in Tetramesa amica and its parasitoid Eurytoma amicophaga (Hymenoptera, Eurytomidae): two new species associated with medusahead, Taeniatherum caput-medusae (Poaceae)

Table 1. Features distinguishing Tetramesa amica Lotfalizadeh, sp. nov. from Tetramesa inermis Erdös, 1963. CharactersTetramesa amica Lotfalizadeh, sp. nov.Tetramesa inermis Erdös, 1963†Pronotal antero-lateral yellow spotsWith a pair of small yellow spots, hardly seen dorsallyWith a pair of relatively large spots, well seen dorsallyFrons sculpture in the lower partLaterally straight and medially smooth (Fig. 1B)Entirely straightAntennal anellus in femaleWider than long (Fig. 1C)Longer than wideLength of funiculars in femaleF1 ca. 1.5 × as long as wide, F2 longer than broad, F3-5 as long as broad (Fig. 1C)F1 ca. 1.5 × as long as wide, F2-3 square, F4-5 transverseLength of clava in femaleLonger than the three pre-claval funiculars together (83:72) (Fig. 1C)Equal to the three pre-claval funiculars togetherMale antennaFunicule thick, funiculars constricted basally and apically (Fig. 1D)Funicule filiform, funiculars without basal and apical constrictionSculpture of mesoscutellumIdentical to pronotum (Fig. 2B)Coarser than pronotumUncus of stigmaDistinct and long (Fig. 2F)As usual (not especially long)Host plantTaeniatherum caput-medusaeBromus spp. † See figures in Erdös (1963) and Zerova (1976).表1 友好四纹姬小蜂（Tetramesa amica Lotfalizadeh, sp. nov.）与无刺四纹姬小蜂（Tetramesa inermis Erdös, 1963）的鉴别特征对比 1. 前胸背板前侧黄斑：友好四纹姬小蜂具1对小型黄色斑点，背面观极难辨识；无刺四纹姬小蜂具1对相对较大的黄色斑点，背面观清晰可见。 2. 额区下部刻纹：友好四纹姬小蜂侧面平直，中部光滑（图1B）；无刺四纹姬小蜂整体平直。 3. 雌性触角环节：友好四纹姬小蜂宽大于长（图1C）；无刺四纹姬小蜂长大于宽。 4. 雌性索节长度：友好四纹姬小蜂F1长约为宽的1.5倍，F2长大于宽，F3~F5长宽近相等（图1C）；无刺四纹姬小蜂F1长约为宽的1.5倍，F2~F3呈方形，F4~F5横宽。 5. 雌性棒节长度：友好四纹姬小蜂棒节长于前3个索节的总长（比例83:72）（图1C）；无刺四纹姬小蜂棒节与前3个索节的总长相等。 6. 雄性触角：友好四纹姬小蜂索节粗壮，各索节基部与端部收窄（图1D）；无刺四纹姬小蜂索节呈丝状，无基部和端部收窄结构。 7. 中胸小盾片刻纹：友好四纹姬小蜂与前胸背板刻纹一致（图2B）；无刺四纹姬小蜂刻纹粗于前胸背板。 8. 翅痣钩突：友好四纹姬小蜂的翅痣钩突明显且较长（图2F）；无刺四纹姬小蜂的翅痣钩突与常规类群一致（无特别延长）。 9. 寄主植物：友好四纹姬小蜂的寄主为美杜莎头麦草（Taeniatherum caput-medusae）；无刺四纹姬小蜂的寄主为雀麦属（Bromus spp.）植物。 † 参见Erdös（1963）与Zerova（1976）的插图。