Valid Names Results

Acanthomytilus graminis Young & Hu, 1980 (Diaspididae: Acanthomytilus)

Acanthomytilus graminis Young & Hu 1980: 194-195. Type data: CHINA: Hunan, Xu-pu, on unidentified plant, 30/08/1957. Syntypes, female, by subsequent designation Type depository: Shanghai: Shanghai Institute of Entomology, China; accepted valid name Illustr.

Families: 1 | Genera: 1

Countries: 1

Systematics: This species is close to Acanthomytilus chui Takagi, but is distinguished from the latter by the median pygidial lobes not notched and the second lobes not bilobulate (Young & Hu, 1980).
Structure: Adult female body elongate, broadest about the 1st abdominal segment. Eyes present. Anterior spiracle with 3-5 disc pores. A lateral process between the 3rd and 4th abdominal segments, with a macroduct opened at its apex. Anal opening at the base of the pygidium. Pygidial lobes 2 pairs. Median lobes without notches, broadly rounded apically, as long as wide, separated from each other by a space wider than one of them. Second lobes not bilobulate, notched once on each side, rounded apically, smaller than the median lobes. Dorsal ducts in marginal groups on metathorax and first two abdominal segments, in submedian and submarginal series on 3rd-5th abdominal segments. Gland cones on venter of the first two abdominal segments. Ventral ducts much smaller, absent between posterior spiracles. Perivulvar pores in 5 groups: 6-8(7-13)7-11. Marginal macroducts on pygidium greatly enlarged, arranged in 1-2-1-1 on each side. Marginal gland spines longer at apex of pygidium, much longer than pygidial lobes, a pair between median lobes, a single one between the median and the second lobes, and three just before the second lobes (Young & Hu, 1980).