Oligoxenomyia radicis Felt
- Dataset
- A review of the gall midges (Diptera: Cecidomyiidae) of Indonesia: taxonomy, biology and adult key to genera
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Cecidomyiidae
- genus
- Oligoxenomyia
- species
- Oligoxenomyia radicis
biology_ecology
Biology. This species causes an aerial root gall on Freycinetia sumatrana Hemsl. (Pandanaceae) described by DvLR & DvL (1926, gall No 45, Fig 24. [Fig. 25 n]). Irregular swellings are partly coalescent and attached to the root with broad bases. The surface is covered with numerous short, brown hair-like scales. The interior contains many long and tubular larval chambers, crossing the longitudinal axis of the root. Geographical distribution. This species is known from Java: Mt Ciampea, near Bogor, alt. 200 m, 1920; Mt Burangrang, alt. 1100 m, vii- 1921; Bolang, near Bogor, alt. 950 m, iii- 1924 (DvLR & DvL 1926).
description
Description. Adult. Palpal segments 3, segments progressively longer [Figs 25 g, h]. Tarsal claws bent at right angle close to basal third, tip pointed, bowed, empodia reaching bend of claw [Fig. 25 f]. Male. Wing length 2.7 mm (2.5 – 2.9), width 1.0 mm (0.9 – 1.2) [Fig. 25 a]. Flagellomeres [Fig. 25 b]. Terminalia [Figs 25 c – e]. Female. Wing length 3.5 mm (3.3 – 3.7), width 1.4 mm (1.3 – 1.4). Flagellomeres slightly constricted at midlength [Fig. 25 i]. Terminalia [Figs 25 j, k]. Pupa. Antennal horns long, narrow, broadly rounded in ventral view [Fig. 25 l]. Prothoracic spiracle long, tapered, bowed at distal third, with small spikes distally, trachea ending below distal end [Fig. 25 m]; spiracles on abdominal segments sessile. Abdominal segments dorsally with dense field of large, simple spikes. Larva unknown.
description
[Figs 25 a – n]
materials_examined
Material examined. Syntypes: 6 males, 10 females, 2 pupae reared from aerial root galls on Freycinetia sumatrana Hemsl. (as F. valida Ridl.) (Pandanaceae), gall No 45 in DvLR & DvL (1926) collected at Bolang, near Bogor, Java, iii- 1924. Felt # a 3391). Felt’s types are mounted on 4 slides, all uncleared, whole specimens, adults in lateral position, pupae in dorso-ventral. All characters preserved in at least one specimen.
Name
- Homonyms
- Oligoxenomyia radicis Felt