Stilt
The scientific name Dimorphopterus spinolae (Signoset) is from the order Hemiptera, Longiidae. Also known as tall sorghum narrowly long. Distribution Hebei, Shandong, Hubei, Jiangxi, Hunan, Fujian, Guangdong and other provinces. Host sorghum, wheat, rice, reed and other grasses. Injury characteristics, nymphs sucking sap, severe leaves cause yellow, slow plant growth. Control methods Spray 80% dichlorvos EC 900-1000 times solution or 90% crystal trichlorfon 700 times solution, 95% Bataan WP 1000 times solution, and 75 kg per 667m2 solution during the adult and nymph stage.
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Morphological characteristics Female adults 3.5 to 6.0 mm in length, male adults 4.5 - 5.0 mm, black body, rectangular, obtuse end. The head is black, nearly prismatic, with coarse engraved points. Antennae, quails are 4 knots, compound eyes are red-brown and semi-circular. Monocular paint black. The prosthodontic plate is nearly square with blunt shoulders. Small scutellum triangle. Abdomen belly dark brown. The fore-wing leathery part has a large, small, and nearly triangular marking, with a simple longitudinal vein of 3-4 membranous parts and a transparent, membranous posterior wing. Egg length 1-1.2mm, banana-shaped, colostrum white, after the orange-yellow, dark red before hatching. The newly hatched nymph head, chest and midbrain back, and wing bud base are all black. The chest and l, 2 abdominal segments are milky yellow and the remaining belly is orange. The nymph's abdomen is wider than the head and chest, and each abdominal joint has 4-6 horizontal small black spots, and the ends are black. The belly grows grayish brown as it grows older.
Life habits Hunan is born 2 generations old, with adults in the underground stem residue, leaf sheath or 2 - 3m deep soil table winter. The overwintering adult began to spawn in early April and entered the spawning period from late April to early May. Hatching began in early May. The first generation of nymphs emerged, and an adult was observed in mid-June. Adult mates spawned in late June, and second-generation nymphs appeared in mid- and late July. Adults in the second-generation in mid-September began wintering.