Valid Names Results

Acanthomytilus arii (Kuwana, 1909) (Diaspididae: Acanthomytilus)

Nomenclatural History

• Mytilaspis (Lepidosaphus) arii Kuwana 1909a: 163. Type data: JAPAN. Unknown type status, unknown, accepted valid name
• Lepidosaphes arii (Kuwana, 1909); Sasscer 1911: 71. change of combination
• Acanthomytilus arii (Kuwana, 1909); Takahashi 1955e: 67. change of combination

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 2

Geographic Distribution

Keys

• Beards1966: pp.535 ( Adult (F) ) [Key to known Micronesian species of Lepidosaphes] Key as: Lepidosaphes arii
• MacGil1921: pp.280 ( Adult (F) ) [Key to species of Lepidosaphes] Key as: Lepidosaphes arii

Remarks

• Systematics: This species is allied to Lepidosaphes gloverii Packard, but differs in having an unusually long filiform female scale and a small second lobe (Kuwana, 1909a). Takahashi (1955e) states that this species may be identical to Lepidosaphes imperatae Kuwana. Kawai et al. (1971) state that this species is close to Acanthomytilus miscanthi. It is distinguished by lacking submedian dorsal macroducts on second abdominal segment, by having gland spines on the 5th and 6th abdominal segments, by having median protuberance at the hind end of the pygidium and by smaller 2nd lobe.
• Structure: Female scale is very long and narrow, straight, sides parallel, with a narrow, flattened border. Color more or less variable, but usually yellowish brown. Shed skins paler than the scale, occupying about one fourth of the total length of the scale. First exuvia pale yellow, segmentation distinct, about .4mm long, second exuvia much longer about .7mm posterior end yellow. Ventral scale whitish, well developed, with median longitudinal division somewhat attached to the margin. Male cover resembles that of female, but is much smaller, color pale, with white, flattened border. Shed skins yellow, ventral scale complete. Adult female elongate in form, lateral margins straight and approximately parallel. The last abdominal segment presents the following characters. The anterior group of spinnerets consists of three, the anterior laterals of about seven to ten, and the posterior laterals of about seven to nine. The median lobes are very large and wide, with the sides nearly parallel; the second lobe very small, sometimes wanting. The plates are well formed, simple, two between median lobes, two between first and second lobes, and two beyond the second lobe (Kuwana, 1909a).
• General Remarks: Detailed description and illustration by Kuwana (1909a) and Kawai et al. (1971).

Illustrations

Citations