Genotype: Tibiolatra latronigra sp. nov.
Facies similar to Acanthomurus but with the antennal segments III and IV annulated and the tibio-tarsi exceedingly broad and flattened.
Represented by one species.
Tibiolatra latronigra sp. nov. Plate 49, figs. 165–168.
Colour: In life, orange; in mounted specimens orange-brown with darker orange-brown on sides of thorax and Abd. I, II, and IV. A patch of black pigment between bases of antennae around the mouth parts, and very narrow bands of black down sides on anterior borders of metathorax and Abds. I, II, and VI. First two antennal segments dark orange-brown, last two black. Legs yellow with black tarsi and black claws. Manubrium dark brown, dens dark brown becoming white towards apex.
Clothing: Thickly clothed with short, ciliated setae, with occasional longer ones on head and at posterior margins of segments. Fine, ciliated hairs present or absent; if present, then a short, fine, ciliated hair on Abd. II near posterior margin, and another slightly longer one on Abd. IV, both dorsal. Legs thickly clothed with short, ciliated setae and occasional very long ones. Furcula clothed with ciliated setae. Distributed amongst ciliated setae of antennae are numerous very fine plain sensory hairs, particularly on Ant. III.
Body: Length 2·2 mm. Head diagonal approximately equal to thorax in length. Antennae three times as long as head diagonal, four segmented, the segments related as 7:17:20:24; third and fourth segments annulated faintly. Antennae situated on raised basal papillae. Ocelli eight to each side, all large, the anterior two largest, on black pigment patches. Postantennal organ elliptical, very small, being in length less than half diameter of nearest ocellus. Ventral tube short and cylindrical. Abd. III to Abd. IV as 18 : 13.
Legs: Claw long and thin with single external tooth about middle of outer edge. No inner teeth. Empodial appendage three-edged, broad at base and tapering to a fine point and about two-fifths length of claw. Claws pigmented black to dark grey, which is characteristic. Tibio-tarsi greatly broadened and flattened.
Furcula: Reaching to thorax. Dens with four rows of serrated black spines at apex, increasing to six rows at base. Manubrium: mucrodens as 18:32. Mucro with three teeth and broad basal spine. Apical tooth sharply-pointed, sub-apical broad and blunt, basal tooth large and slightly recurved. A stout curved ciliated seta arises dorsally from dens near junction with mucro.
Locality: Lake Pukaki, under stones on the bank of a stream running into the lake about 30 miles from the Hermitage.
[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]
Type: Slide 3/242, Dominion Museum Collection.