Genus Tetrorea White

Tetrorea cilipes White (Fig. 41).

Mature Larva. Length up to 20 mm. Stout, cylindrical, slightly tapering posteriorly. Colour white. Body setae castaneous.

Head (Fig. 41) elongate, widest anteriorly, tapering posteriorly and slightly constricted behind mid-length, depth less than half width. Mandible with two setae, cutting edge oblique, molar part not angulate. Clypeus trapezoidal. Labrum transverse, with four large setae at mid-length, two para-median and one sub-lateral on each side; rounded anteriorly, pigmented posteriorly. Maxillary palp three-jointed, second and third joints sub-equal in length. Labial palp with second joint shorter than first. Four or five setae at base of labial palp. Mentum distinct, with one large and two or three smaller setae on each side. Epistoma straight, with three setae. Front heavily pigmented to mid-length, with about six setae on each side anteriorly. Antennae retractile, antennal ring bisected by frontal suture. One ocellus. Hypostoma with five or six setae on each side.

Thorax. Pronotum transverse, nearly twice as wide as long, not separated anteriorly from pro-alar area, feebly striate posteriorly. Presternum and epipleurum fused, the latter setose. Eusternum not distinct, setose. Legs vestigial. Spiracles ovoid.

Abdomen. Epipleurum protuberant on last six or seven segments. Pits not evident on pleural tubercles. Ampullae with two rows of tubercles. No caudal spine. Spiracles sub-circular.

Pupa. Form as in adult. Head with the following setae: Seven round each antennal insertion, two para-median on front, seven across clypeus, four across apex of labrum, two on mandible and six on gena. Pronotum with a row of setae across anterior margin, a transverse row of four anterior to mid-length, two posterior to this and a row of eight across posterior margin. Lateral margin with a conical tubercle bearing a number of setae. Metathorax with a V-shaped group of setae. Abdomen with segments one to six with a posterior row of pigmented spines which are setigerous on segments two to six. Seventh with a transverse row of seti-gerous pigmented spines at one-third length and a number on the posterior half. Eighth with row of setigerous pigmented spines anteriorly, posteriorly with a median spine directed dorsad,