Xanthogramma. 357 



Occiput grey pruinose, with yellowish, upwards darker hairs, and 

 above also with black hairs. Antennæ reddish, third joint generally 

 slightly darkened at the upper margin ; arista blackish brown, the base 

 yellow. Thorax black or æneous black, somewhat shining, with three 

 faint dull stripes in front, the lateral often scarcely traceable; the side 

 margin has a somewhat broad, bright yellow stripe ; the disc is clothed 

 with dense, dark yellow or brown hairs. Scutellum yellow with the 

 basal half black, and with yellow or brown hairs. Pleura black, the 

 hind margin of mesoplem-a with a yellow or whitish spot, and some- 

 times a faint spot or trace of a spot below it and a similar on meta- 

 pleura; the hairs yellow or brown. Abdomen increasing in breadth 

 from the base to about the end of the third segment; it is dull black, 

 shining just at base and apex. with four pairs of yellow or orange 

 spots; the basal spots are large, triangular and about equilateral, they 

 lie on the front part of the segment, touching the front corners, and 

 are broadly separated in the middle; the second pair form narrow 

 stripes at the front margin, sloping a little backwards towards the 

 sides, and approximated in the middle; the third pair are similar, but 

 more curved and sloping at the sides, and the fourth pair are still 

 more curved, and in front disappearing under the margin of the fourth 

 segment; the fourth and fifth segments have a narrow, orange hind 

 margin; the spots are going over, or just to, the side margin. The 

 hairs are quite short; they foUow the ground colour, only at the base 

 they are yellow and longer; at the sides they are all short and black 

 except at the base, where they are long and yellow from the begin- 

 ning of the yellow spot. Venter coloured about as dorsum, but with 

 only three bands, the third generally consisting of a pair of spots, 



Fig. 132. Wing of X. ornattim cf. 



often more or less united in the middle ; it has longish, mainly yellow 

 hairs on the two first segments, short and black on the rest. Legs 

 yellow with coxæ and trochanters black; tarsi more reddish; hind 

 femora with a more or less distinct, dark ring near the apex, hind 

 tibiæ reddish brown with a faint dark ring in the middle, and hind 



