Chinese name: Aphidius rapae
Latin name: aphidius gifuensis ashmaed
Name: Hymenoptera
Division Name: aphid Braconidae
Subfamily name: aphid Braconidae
Is a name: aphidius
Morphological characteristics: females head transverse, the substrate is greater than the chest at the width of the wing; the cheek diameter slightly shorter than compound eye; narrow face, a head width of 1/2.5; cheek compound eye diameter vertical length is 1 / 5. Bone index screen 0.4 3 monocular acute angle to the triangle arrangement. Compound eyes large, oval, with a clear thin undercoat. Antennae 16-18 section, mostly for 17, 1, 2 whip Festival long, long is the width 3.0-3.5 times the end section of micro bold. Department of shield longitudinal groove on the rise significantly; shield along the edge of the scutellum with long fine hairs longitudinal groove. And a narrow chest and abdomen with a small section of the central chamber. Wing mole is 4.0-4.5 times the width of about equal length with the mole after the pulse, pulse diameter slightly paragraphs 1 and 2 of equal length. Ventral valve handle is in length and width of tumor at 3.5 times in a weak longitudinal ridge; the front rows of vertical zone 5-10 of fine ridges. Ovipositor sheath thick short. Body mostly brown and orange, a small number of dark brown. Dark brown head, face, lips base, mouthparts, cheek, on the lower cheek, reach first three and a half side yellow or brown. General two-color chest, back Gampsocleis, side, belly yellowish brown, a few specimens of the whole chest was dark yellow. Abdomen brown; abdominal handle section, section 2, the back end of the film department and vertical cross-patch, and foot joints 2 and 3 all yellow. Body length 1.9-2.6 mm, 1.6-2.0 mm long antennae. Drone antennae 19-20 section, a small number of sections 18, 21; body length 0.8-2.6 mm. Darker color than females. Mostly yellow to brown stiff aphid, individual light brown. The major features: antennae mostly 17; curtain bone index 0.4; winged mole and the mole after the pulse, pulse diameter 1 and 2 segments of equal length segment; ventral side of the handle area before the holiday industry has fine vertical ridges 5-10.
Host: rice wheat aphid
Occurrence: the tobacco fields the dominant species; wheat sub-dominant species. A high incidence in May-June; between September and October there are a certain number. Of tobacco, wheat aphids have a controlling role.
Habitat: grassland; Tobacco, many wheat fields, peach easy to find.
Geographic distribution: Shanghai, Hunan; in Beijing, Henan, Xinjiang, Zhejiang, Hubei, Taiwan, Fujian, Guangdong also has distribution; Korea, Japan, the United States and Canada. |
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