File:Bulletin of entomological research (1919) (20255177798).jpg

Title: Bulletin of entomological research
Identifier: bulletinof1019191920grea (find matches)
Year: 1910 (1910s)
Authors: Great Britain. Colonial Office. Entomological Research Committee; Imperial Institute of Entomology; Commonwealth Institute of Entomology
Subjects: Entomology
Publisher: Farnham Royal : Commonwealth Agricultural Bureaux
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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OBSERVATIONS ON SCALE-INSECTS. 181 Phenacoccus ballardi, Newst. The original description* of this rather remarkable insect was given without illustrations. I have thought it desirable, therefore, to give a photomicrograph of both old and young adult females (PL xvi, fig. 4) in the hope that it will enable students to determine the species with greater ease. Pseudophilippia inquilina, sp. nov. Female, adult. Form short ovate and slightly tumid. Colour in life mauve pink. Dorsum nude ; venter protected, by a thin vesicular glassy scale, which is firmly attached to the bark of the food-plant. Antennae (fig. 5, a) and legs quite rudimentary; the former, which are much shorter than the stigmata, are composed
Text Appearing After Image:
Fig. 5. Pseudophilippia inquilina, Newst., sp. n. $ ; a, antenna ; b, leg; c, cIt c2, stigmata; d, gland-pores. Second stage $: e, stigmatic cleft ; /, anal lobes. apparently of three segments, the apex having several stiff hairs. Legs (fig. 5, 6) slightly smaller than the antennae, bare, composed of a single tubercular-shaped segment, with a relatively large claw; lower digitules stout and bluntly pointed. Stigmatic clefts (fig. 5, c) clearly defined. The stigmata (fig. 5, c, c^c^, which are placed close to the cleft, are protected by a well-defined external arch (fig. 5, gl. ar.) shaped somewhat like a horse-shoe in minature, and closely set internally with thick-rimmed multilocular gland-pores. Anal cleft nearly four times the length of the lobes ; the latter surrounded by a distinct chitinous arch. Venter rather * Newstead, R. Bull. Ent. Research, viii, p. 17 (1917).

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