248 THE ENTOMOLOGIST. 



Abdomen very slender, dilated at both extremities ; segment 

 1 yellowish-brown, dark brOwn at the apical margin ; 2 dark brown 

 above, yellowish-brown at sides ; 3-6 blackish-brown, with an 

 ill-defined yellowish- brown area of variable extent at the base ; 

 7 blackish-brown, yellowish-brown at the apex ; 8-10 bright yellowish- 

 brown ; 10 less than half as long as 9, the apical margin carrying 

 dorsally some six or seven minute horizontal denticles, and laterally 

 a black tooth-like projection on each side, also directed backwards. 



Anal appendages bright yellowish-brown. The upper pair some- 

 what longer than segment 10, curving towards one another, but well 

 separated at the tips, broad at base, and gradually narrowing towards 

 the rather blunt point. The lower appendages a little shorter than 

 the upper, tipped with black ; in lateral view very broad at base, 

 suddenly narrowing, and curving a little first downwards and then 

 upwards ; in ventral aspect tapering towards the apex, somewhat 

 convergent. 



The five specimens vary a good deal in size. The one selected 

 for description is the largest, the length of the abdomen being 

 37*5 mm., as compared with the measurements of 30'5, 35*0, and 

 35*5 mm. obtained from other specimens, and the length of the 

 hind wing being 25 mm., as compared with 23 (in three males) 

 and 23'5 mm. in the other example. The number of postnodal 

 cross-veins is also variable, six fore wings having 19, three 20, 

 and one 21, and one hind wing possessing 17, eight 18, and 

 one 19. 



$ . Length of abdomen 34 mm. ; length of hind wing 24*5 mm. 



Labium and labrum yellow. Clypeus and frons pale reddish- 

 brown. Genae yellowish, marked as in the (^ . Frontal ridge less 

 distinct than in 3" . Upper surface of head copper-brown. Basal 

 three joints of antennae copper-brown ; the remaining joints missing. 

 No postocular spots visible in the unique female specimen. Pronotum 

 copper-brown. A large oval black spot between the coxae of the 

 fore legs, as in the J". Hind margin of prothorax elevated, straight 

 for the greatest portion of its length. Dorsum of meso-metathorax 

 copper-brown ; mid-dorsal carina black ; sides and under-surface 

 yellow. 



Fore and mid legs pale reddish-brown ; tips of tarsi black. (Hind 

 legs missing.) 



Wings with venation and pterostigma as in ^ . Postnodals in 

 fore wings 20-21, in hind wings 19. 



Abdomen rather stout ; dorsum of segment 1 pale yellowish-brown ; 

 2 with the basal two-thirds dark yellowish-brown and the apical third 

 blackish-brown, enclosing a large semi-circular spot of pale yellowish- 

 brown ; segments 3-6 blackish-brown, with a basal ring of pale 

 yellowish-brown on each, narrow on 3, wide on 4 and 5, and obscure 

 on 6 ; 7 very dark brown basally, and paler apically ; 8-10 bright 

 yellowish-brown. Anal appendages bright yellowish-brown, pointed, 

 barely as long as segment 10. Ovipositor bright yellowish-brown, 

 reaching backwards a little further than the anal appendages. 



