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Body varies around 1.1 to 1.4mm in length and is brown, with the head and thorax lighter than the abdomen. Legs are mainly yellowish brown and forewings are pale yellowish brown. Antennae are brown with the apices of segment 2 and most of segment 3 yellowish brown. The head is broader than long, and the antennae are 8 segmented. There is a row of 3 or 4 small tubercles cephalad of the anterior ocellus. The pronotum has transverse anastamosing striations and 3 pairs of posteromarginal setae. The mesonotum is completely sculptured, and there are large reticulations medially along the first third of the metanotum. The forevein on the forewing has 3 distal setae, though occasionally 2 or 4 may be present. Abdominal tergite 2 has 4 lateral setae. On tergite 8 there is a posteromarginal comb of microtrichia of irregular length. Tergite 9 has 2 pairs of campaniform sensilla. Accessory setae are present on sternites 2 to 7 in an irregular row. In males, a transversely oval glandular area is present on each of sternites 3 and 4 (Nakahara 1994).