BY R. J. TILLYARD. 727 



the dorsal ridge, and four fair-sized creamy dorsal spots, at about 

 equal distances apart, forming approximately the angular points 

 of a square; of these the two front are often cleft by the intrusion 

 of the ground-colour from behind, but the other two are more or 

 less round. On each side of the thorax is a broad lateral band 

 of cream-colour or pale straw, running from between the wing- 

 joins to above the metacoxa; part of the thorax next the abdomen 

 is dull greyish. Notum brown, except meso- and metascutum, 

 which are cream-coloured. Legs black. Abdomen long and 

 slender, 3 and 8-10 rather narrower than the rest. Colour: 1, 

 brown with a creamy dorsal spot; 2, brown, on each side a 

 creamy basal mark running up from the spur to dorsum, and 

 nearly meeting above. Spurs small, creamy above, dull grey- 

 brown beneath. Rest of abdomen black spotted with cream- 

 colour as follows : — 3-8, two basal triangular spots, and two 

 central suboval or round spots crossed by a fine black line, the 

 first two diminishing rapidly in size from 3-8, being only mere 

 lines in 8, the last two somewhat pointed basally in 3, round in 

 4-7, smaller and pointed anally in 8; 9, black, sometimes with two 

 tiriy spots; 10, a rather large central diamond-shaped or oval spot, 

 a pair of tiny lateral spots. Ventral carina black, broadly edged 

 with dirty white, this colour being broadest at the base of each 

 segment, and running up to join the basal spots on 3-8. 

 Appendages: Superior very long, 3-8 mm., basal two-thirds 

 straight, rest forcipate; black, with some very small hairs. 

 Inferior 2-2 mm., narrow, subtriangular, slightly hairy below; 

 concave above, tip slightly upcurved, colour pale brownish, 

 darkened at tip. 



9. Differs from the male as follows : — A somewhat larger 

 insect; fore wing 36 mm., hind wing 35 mm. Bases of wings more 

 or less shaded with rich yellowish-brown, especially between sub- 

 costal and median nervures. Pterostigma pale, 4 mm. Colours 

 of thorax and abdomen duller. Spots on thorax larger and some- 

 times running into one another so as to form two very irregular 

 antehumeral bands. Abdomen cylindrical, broader than in male- 

 designs larger and bolder; 9-10 very short and narrow. Ovipositor 

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