Valid Names Results

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

Acanthomytilus yunnanensis Young & Hu 1980: 191, 195. Type data: CHINA: Yunnan, Kunming, on graminaceous plant, 11/04/1975. 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 different from the latter by the presence of submedian dorsal ducts on the second abdominal segment and the larger second pygidial lobes (Young & Hu, 1980).
Structure: Adult female body elongate, broadest about the first 2 abdominal segments. Eyes present. Anterior spiracle with 2-5 disc pores. A lateral process on the 4th abdominal segment, with a macroduct opened at its apex. Anal opening at the base of the pygidium. Pygidial lobes 2 pairs. Median lobes robust, without notches, broadly rounded apically, as long as broad, separated from each other by a space wider than one of them. Second lobes bilobulate, inner lobules very large, broader than long, as broad as the median lobes, outer lobules small, triangular with blunt tip. Dorsal ducts in marginal groups on meso- and metathoracic and the first abdominal segments, in submedian and submarginal series on 2nd-5th abdominal segments. Gland cones on venter of the first 3 abdominal segments. Ventral ducts much smaller, absent between posterior spiracles. Perivulvar pores in 5 groups: 4-5(11-13)7-9. Marginal macroducts on pygidium larger than dorsal ducts, arranged in 1-2-1-1 on each side. Marginal gland spines longer at the apex of pygidium, much longer than pygidial lobes, 2 between the median lobes, 2 between the median and second lobes, and 2 just before the second lobes (Young & Hu, 1980).