A. A. GIRAULT. 17 



The ground color of the body, antennas and legs is light yellow ; 

 the distal tarsal joint is brown, the eyes and ocelli ruby red, the pro- 

 notum brownish ; the shield of the mesonotum and a transverse streak 

 upon all of the abdominal segments grayish-yellow ; the fore wings 

 reddish-brown in the region of the costal vein, the rest colorless like 

 the posterior wings. The grayish yellow color occurs frequently upon 

 the middle of the back of the abdominal segments. 



The antennae are bent at right-angles, in both sexes 7-jointed. In 

 the female (plate I, fig. 10) the first joint is as long as the five follow- 

 ing combined and is armed with simple {enkele) sette. The second 

 joint is half as long as the first, at the base strongly narrowing and pro- 

 vided with several tolerably long setae. Joints 3 and 4 are extraordi- 

 narily small, strongly pressed together ; the third lens-shaped, the fourth 

 wedge-shaped. In all aspects of the antennae they are nothing to see 

 and know and therefore easily overlooked. Joints 5 and 6 are somewhat 

 wider than long, yet not any broader than the second joint. In several 

 specimens both of these joints happen to be imperfect. Each bears a 

 bladder-shaped organ of sensation (s). The seventh joint amounts to 

 .25 (?) of the whole length of the antennae. It is much wider than the 

 preceding joints, widest at its middle, near the end terminating in a 

 point and compressed at the sides. Its uppermost edge is straight, 

 lamellate [lamellair) , and provided with two teeth, the lower edge 

 curved. The whole joint is covered with close, short hairs with several 

 long hairs between. 



The antennas of the male (plate I, fig. 11) are somewhat longer 

 than those of the female. The first joint is slenderer than in the fe- 

 male, as long as the three following joints combined and clothed with 

 simple setae. The length of the second joint amounts to two-fifths (?) 

 of that of the first and it is strongly narrowed at the base. Joints 3 to 6 

 are somewhat wider than the second joint, reciprocally equal in width 

 and in outline, all show a pentagonal form because their upper side is 

 produced from an obtuse angle. Each of joints 3 to 6 have five long, 

 stiff, curved setae, which apparently are organs of sensation, and which 

 give to the antennae a singular appearance. Concerning length, 

 joints 3 and 6 are mutually equal, the fourth joint somewhat shorter, 

 the fifth somewhat longer than 3 and 6. The joints 3, 4 and 5 are pro- 

 vided, besides the long stiff setae, in addition with bladder-shaped sen- 

 sitive organs (s) but on the sixth joint these appear to be missing. 

 The seventh joint is as long as the fifth and a little narrower, at the 

 end narrower, ending in a point. Like the four preceding joints it is 

 clothed with long, stiff setae, which are at least eight in number. Upon 

 the tip of the joint there is, moreover, a bladder-shaped sensitive 

 organ (s). 



The legs are reciprocally about equally thick. Only the femur of 

 the third pair is a little thickened. 



TRANS. AM. KNT. SOC, XXXVII. (3) 



