plate as “short, rounded” does apply to some specimens but is definitely not common; short, convex terminally, being much more usual. His description of Macropathus is completely different from that given by Walker. In having “the three last joints of the maxillary palpi about equal,” the “fore coxae not spined”, and “none of the femora with apical spines” it differs from my specimens which all have the last joint of the maxillary palp longer than the third and fourth joints; the fore coxae always possess a spine, and all the femora are armed with apical spines.

Neither of Hutton's descriptions of the two genera tallies with my specimens; but they approximate Pachyrhamma more closely than Macropathus. However, as will be shown later in this paper, in the synonymy of Macropathus filifer, Hutton transposed the two genera, so that the correct name of the genus Pachyrhamma is really Macropathus.

The genus Macropathus therefore, must now be redefined as follows:—

Body rather stout and sparsely clothed with short setae. Legs long and slender. Antennae very long and tapering; almost touching at their bases; scape about four times as large as pedicel, which is narrower than scape, but broader than other segments; third segment on dorsal aspect narrower than scape, but half as long again, and on ventral aspect equal or subequal with pedicel; from fourth segment onwards, segments subequal, although steadily decreasing in size; all segments thickly clothed with short setae; antennae of male stouter and longer than those of female Head vertical; compound eyes, laterad, nearly elliptical, twice as long as broad; a single anterior, white, median ocellus only Fastigium rises abruptly, slightly sulcate, with base touching scape of antennae. Mandibles small. Maxillary palpi with third and fourth joints subequal in length. Pronotum rounded anteriorly and produced in front over occiput, truncated posteriorly, sternum transversely narrowed; pronotum and mesonotum distinctly margined laterally and posteriorly Fore coxae close together, but not quite touching, each armed with a spine. All femora sulcate ventrally Femora, tibiae and first and second proximal segments of hind tarsi armed with variable numbers of spines. Apical spines on femora, tibiae and first and second proximal segments of hinl tarsi constant in number. Fore femur bears one spine prolaterally; fore tibia bears four spines, one above and one beneath, both prolaterally and retro-laterally; fore tarsus is unarmed. Middle femur bears two spines beneath, one prolateral and the other retrolateral; middle tibia bears four spines, one above and one beneath, both prolaterally and retrolaterally; middle tarsus is unarmed. Posterior femur bears two spines above, one prolateral and one retrolateral; poster or tibia has a pair of apical spurs above, a pair of apical spines beneath, and a pair of subapical spines beneath, one from each pair being prolateral and the other retrolateral; posterior tarsus two proximal segments each has two spines above, one prolateral and one retrolateral, other two segments are unarmed. Neither apical nor any other spines occur on fore or middle tarsi Cerci long, tapering, unsegmented, clothed with long and short setae. Subgenital plate of female with distal margin widely emarginate. Ovipositor sabre-shaped, subequal with length of body. Subgenital plate of male triangular, one and a-quarter limes as Ions as wide; sides spreading slightly proximally, tapering to concave distally, with a rounded apex, or spatulate distally with lateral margins curved