摘要
脉翅目(Neuroptera)草蛉科(Chrysopidae)作为一类重要天敌资源,在我国各地非常丰富,大量的标本有待鉴定。本文主要记述2新属及其所属种类,模式标本均保存于北京农业大学昆虫标本室。
In the present paper, two genera are described as new, each with one new species. The type specimens are preserved in the Insect Collections of Beijing Agricultural University.Odontochrysa gen. nov.Type species: Odontochrysa hainana sp. nov.Medium-sized species, head with marking or unmarked. Antennae as long as the forewing or shorter. Wing venation similar to Chrysopa. Ectoprocts very large and rounded. Sternite 8 and 9 not fused. Sternite 8 broad and large. Sternite 9 slender. Gonarcus, entoprocessus and pseudopenis present. Tigum, gonapsis and arcess absent. Middle of gonarcus straight, and with two teeth. Entoprocessus slender or triangular. Pseudopenis and female genitalia like common Chrysopa.Distribution: Odontochrysa depressa (Steinmann 1968) comb. nov. (Mongolia); O. hainana sp. nov. (China); O, lacciperda (Kimmins 1955) comb. nov. (India); O. nigrescens (Holzel 1986) comb. nov. (Turkey); O. ramburi(Schneider 1851) comb. nov. (Oriental).Odontochrysa hainana, sp. nov. (fig.1)Allied to Odontochrysa ramburi (Schneider), but, without any spot on head and at the base of R of the forewing. Claw dilated basally. the entoprocessus of male genitalia also different. Holotype (?) ,allotype (?), Hainan Is., 1981-Ⅳ-3;paratypes 5 (?) (?) , 3 (?) (?): Tong Shi, (Hainan), 1 (?), 1981-Ⅺ-27;Guangzhou:2 (?) (?), 1978-Ⅺ-30, 1978-Ⅻ-2; Hainan, 5 (?) (?): 1 (?), 1981-Ⅸ-14;4 (?) (?), 1981-Ⅳ-3.Xanthochrysa gen. nov.Type species: Xanthochrysa hainana, sp. nov.Medium-sized species. Antennae longer than forewing.Tergite 9 distinct. Ectoproct triangular. Sternite 8 and 9 fused completely, with two pro jsctions on upper margin. Two parameres visible at the end of abdomen. Gonarcus vertically curved at the ends, a little curved at the tip, straight at the middle and with two teeth on it. Entoprocessus fused but separated upward, curved to form a hook downward. Arcess very short and at the middle of entoprocessus. Hypandrium slender with two arms. Tigum, gnapsis and pseudopenis absent. Wing venation of the form is Chrysopa. Wing usually with many markings.Xanthochrysa hainana, sp. nov. (fig.2)(?) (in alcohol) Length of body 7.7mm, of forewing 14.2mm, hindwing 12.7mm. Antennae 17.7mm.Head yellowish brown, with a semicircular brown band on the vertex, and ' ω marking under the antennae. Palpi and antennae yellowish brown. At the middle of thorax yellowish brown, along its margins dark brown. Legs yellowish brown, with brown rings at the middle portion of femur in fore-and middle legs. Claw brown and curved at base.Forewing: with 19 costal cross veins, dark at ends. Stigma brown with a large brown spot. Crossveins between Sc-R brown, 12 between R1-Rs, 1st, 9th, 10th and 12th brown, a brown spot on the 2nd and 12th. 12 between Rs-Psm, brown at ends, a large brown spot on 9-11th. 8 between Psm-Psc, brown at ends, with brown markings: 1st-2nd, 4-6th, at the end of Psc, 5th at Psm, Psm at the margin of wing and Cu2. The first crossvein between Rs-Psm located before the apex of the triangular median cellule. Gradate crossveins green, ig /og = 7/9. There are two large spots and four small ones at the hindmargin. Most of the crossveins with brown cloudy markings.Hindwing: with 14 costal crossveins, and 11 between R1-Rs, which are dark at the ends. Gradate crossveins green, ig/og = 7 /8. Surface of the wing with following four brown markings: a large one at the middle, one at the tip, and two at the hindmargin.Abdomen: dorsally yellow and tergites 5-8 dark brown. Ventrally yellowish-brown. Ectoproct and the inner of sternite 8 plus 9 golden, hence the name of the genus. Male genitalia as described in the genus.Holotype (?) ; paratype 1 (?) , YaxianCo. (Hainan). 1981-Ⅹ-30 and 1981-Ⅸ-8.
关键词
脉翅目
草蛉科
新属
Chrysopidae, Odontochrysa, Xanthochrysa, New genera.
