Trupheoneura. 



141 



on the left side a small triangiilar prolongation, the left arm of for- 

 ceps is long, somewhat curved, with a large triangular tooth on the 

 anterior margin, the right arm is short, broad, pointed and with a 

 small tooth on the posterior margin; below there is a large, yellowish, 

 somewhat furcated ventral plate; anal tube short with longish hairs. 

 Legs somewhat long and slender, but less than in intempesta, brown 

 tibiæ and tarsi more brownish yellow; front tibiæ with a dorsal 

 bristle above the middle, middle tibiæ with a pair at about the upper 

 third and a small anterior at apex, hind tibiæ with two anterior 

 bristles, one above the middle and one smaller at apex; the bristles 

 are rather small, only the upper anterior on middle 

 tibiæ longer. Wings somewhat large, brown or yellowish 

 brown tinged; veins blaokish brown; costa reaching 

 beyond the middle (0.57), thickened from the uniting 

 with the first vein and increasing in thickness outwards ; 

 costal divisions proportionally about as 20 — 13 — 9 

 (the wing was not plane so the measurements are partly 

 estimated); fork rather long and somewhat acute; costal 

 cilia short; third vein a little strong; fourth vein issuing 

 behind the base of the fork, distinctly S-like at base 

 and with the curve in its first part somewhat strong; 

 seventh vein reaching a little more than half way to 

 the wing margin. H alteres yellow. 



Female. Similar to the male; frons a little higher; 

 antennæ smaller; palpi more greyish and with longer bristles, especi- 

 ally one long at the end; clypeus protruding, shining. Abdomen has 



Fig. 63. 



T. excisa §, 



seventh 



sternite 



X120. 



Fig. 54. Wing of T. excisa $. 



the fourth ventral segment hairy, the fifth seems to have hairs only 

 towards the hind margin, the sixth is hairy; the seventh sternite 

 is elongated, of the same breadth in the whole length and excised in 

 the hind margin, the corners being drawn out a little hook-like (fig. 53); 



