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Volume 84, 1956-57
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Genus Stenopotes Pascoe

Stenopotes pallidus Pascoe (Fig. 31).

Mature Larva. Form stout, tapering posteriorly. Length, 16 mm. Colour, creamy-white. Body setae castaneous.

Head (Fig. 31) transverse, slightly wider posteriorly, slightly concave on posterior dorsal margin. Occipital foramen wider behind mid-length. Mandible of normal type. Labrum transverse, densely setose. Maxillary palp longer than femur plus tibia. Last joints of labial and maxillary palps sub-equal. Palpifer and first joints of maxillary palp with process. Three ocelli. Genae shouldered, genal setae dense and stout. A blunt tubercle present dorsad of the ocelli. Antennal ring bisected by frontal suture. Hypostoma with two or three setae on each side.

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Thorax. Pronotum nearly twice as wide as long, anterior half sparsely setose, striate posteriorly, notal spots distinct castaneous. Metanotum with transverse line. Presternum fused with epipleurum and with long setae laterally. Eusternum not defined anteriorly from presternum, with sparse setae anteriorly. Legs well developed, 4-jointed. Prothoracic spiracle with pecten dorsal.

Abdomen. Pleural tubercles distinct, discs not evident. Ampullae tuberculate, moderately projecting. Three anal lobes. Sclerotized thickening of intima of hind-intestine present.

Larvae and living adults of this species were taken from dead Pinus radiata at Katikati in January and were found in the same food plant on the Moutere Hills.

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Text-fig. 4.—Navomorpha lineatum. Fig. 25—Larva, prothoracic spiracle. Navomorpha sulcatum. Fig. 26—Larva, head. Ochrocydus huttom. Fig. 27—Larva, head. Oemona hirta. Fig. 28—Larva, head. Fig. 29—Larva, epipharynx. Fig. 30—Larva, prothoracic spiracle. Stenopotes pallidus. Fig. 31—Larva, head. Zorion minutum. Fig. 32—Larva, head.

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The larvae make broad shallow mines between the bark and the wood, but enter the wood to a depth of up to one inch to pupate, blocking the exit hole with coarse shreds of wood.

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