174 ERNEST E. AUS'iKN—TWO NEW SPECIES OF helow), frontal callus clove-browE, shining, extending from eye to eye and nearly ' quadrate in shape, though slightly liigher in middle line than at sides, in rubbed specimens connected in middle line above with a small black spot in centre of front, above which and not connected with it is a second and much smaller, quadrate, median, blackish spot near vertex ; palpi in both sexes cream-coloured, terminal joint in (j" pyriform, clothed with whitish hairs and also on lower portion of distal two-thirds of outer surface with black hairs ; terminal joint of palpi in Q swollen above and ending in a sharp point below, clothed on outer surface with minute black hairs, mixed with minute whitish or yellowish white hairs ; first and second joints of antennce in both sexes isabella-coloured, clothed with minute black hairs, third joint in ,5 narrow and elongate, its proximal portion cinnamon, its terminal annuli brown ; expanded portion of third joint in Q moderately broad and more or less russet-browu, terminal annuli dark brown or clove-brown. Thorax : dorsum in thinly clothed with erect brownish or blackish hair, mixed with yellowish hairs on central third in front of transverse suture ; dorsum in Q thinly clothed with appressed yellowish hairs, especially on central third and in front of suture ; the grey stripes on dorsum consist in both sexes of a narrow median line extending from front margin to transverse suture, a broader and complete stripe on each side of this, midway between middle line and lateral margin, and a still broader stripe on each lateral margin, which includes the humeral and extends to the postalar callus ; postalar calli and region immediately above base of each wing clothed with whitish hairs ; from humeral callus to base of wing on each side runs a narrow, dark brown, horizontal strijjc, which is clothed with dark brown or black hair ; pleuraj and pectus light grey, and clothed in both sexes with white hair ; scutellum agreeing in ground colour of its upper surface with that of remainder of dorsum, grey on latci'al and hind border, in ( thinly clothed above with erect brownish hairs, mixed with appressed yellowish hairs near front margin, and with whitish hair on lateral and hind border, in Q clothed above with appressed yellowish hairs mixed with some more erect blackish hairs. Ahdomeii : median grey stripe on dorsum extending from base to hind margin of sixth segment, and clothed with, minute, appressed, yellowish hairs ; grey stripe between median stripe and lateral margin on each side broken up into spots after second segment, and terminating, like median stripe, on sixth segment, although in (j" (at least in case of type) the spots on fifth and sixth segments are invisible unless abdomen be viewed at a low angle from behind ; the spots on the third and following segments forming the paired stripes situated more or less close to or even in contact with the front margins of the segments, but widely sejDarated from the hind margins ; lateral borders of first six segments grey, posterior angles and extreme hind margins of second to sixth segments inclusive narrowly cream-buff; p)aired grey dorsal stripes, grey lateral margins, and grey portion of venter clothed with minute, appressed, whitish hairs ; ventral surface of last three segments, except hind margins of fifth and sixth, greyish clove-brown, hind margins of ventral scutes of second to sixth segments inclusive cream-buff. Wings hyaline, stigma elongate, faint, and inconspicuous. Squama isabella-coloured. Halteres : knob buff or cream-buff, sometimes brownish at base, stalk brownish. Legs : coxte grey, clothed like femora with whitish hair : lower surface and distal fourth of front tibia3 black,