Valid Names Results

Mohelnaspis graminicola (Takahashi, 1934) (Diaspididae: Mohelnaspis)

Nomenclatural History

• Chionaspis graminicola Takahashi 1934: 9. Type data: TAIWAN: Shinten near Taihoku, on unidentified Gramineae, ?/12/1932 and ?/1/1933, by R. Takahashi. Syntypes, female, Type depository: Taichung: Entomology Collection, Taiwan Agricultural Research Institute, Wu-feng, Taichung, Taiwan; accepted valid name Illustr.
• Acanthomytilus graminicola (Takahashi, 1934); Borchsenius 1966: 68. change of combination
• Takahashiella graminicola (Takahashi, 1934); Ali 1970: 28. change of combination
• Mohelnaspis graminicola (Takahashi, 1934); Danzig 1993: 301. change of combination

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

Remarks

• Systematics: Ali (1970) states that Mohelnaspis graminicola is allied to M. vermiformis. This species differs from M. vermiformis Takahashi in the shape of the lobes of pygidium and in many other structures (Takahashi, 1934).
• Structure: Adult female scale very long, slender, straight, somewhat broadened posteriorly, somewhat convex dorsally, with no ridge, pale yellowish brown, white on the hind end, about 5mm long. First larval skin paler, at the front end of the scale. Secretion occupying most of the scale. Body very long, slender, with many small glands on the side of posterior half. Antennae widely separated, with 2 long bristles. Anterior spiracles with 1 or 2 parastigmatic pores, the posterior ones lacking them. Last 3 abdominal segments convex laterally, with an eminent lateral process on each side, 2 or 3 short lateral gland spines and some lateral glands; the glands as large as the dorsal ones on the pygidium, the preceding 2 segments with some small conical spines in a group on each side. Length of body about 1.5mm. Pygidium much wider than long, with many longitudinal dorsal lines, the hind end nearly straight, not incised, but with a pair of very small median processes. Anal opening large, circular, near the base. Dorsal gland orifices transversely oval, chitinized on the margin, moderate in size. Glands much smaller than the marginal ones, rather small, much longer than wide. Marginal glands 5 on each side, of which the basal one is eminently protruding. Median lobes rather large, somewhat wider than long, very broadly rounded on the distal margin, not serrate, very widely separated, parallel, shorter than the marginal glands, very slightly notched on the mesal margin; the 2nd lobes divided; the inner lobules similar in shape, but much smaller than the median lobes; the outer lobules much smaller, longer than wide, conical, more or less pointed apically; 3rd lobes absent. Gland spines 8 on each side, of which posterior 5 are very long, and one of them is between the median lobes and twice as long as the lobes; basal 3 very short. Circumgenital pores in 5 groups; median group with about 2-4 pores in a row; upper lateral with about 6-8, lower lateral with about 4-6 (Takahashi, 1934).
• General Remarks: Detailed description and illustration by Takahashi (1934).

Illustrations

Citations