336 



Deutsch. Ent. Zeitschr. 1912. 



Proportion between the length of tarsus and tibia of the fore 

 leg. The tibia is 1^4 time as long as the tarsus, and the tarsus 

 is a little longer than the femora. 



Fig. 4. Thraulus Valdemari. 

 Fore leg, foi-e wing and bind wing (the latter more magnified than fore wing). 



5. Thraulus bomplandi n. sp. 



Upper portion of eyes greenish blue , lower black. Thorax 

 light brown. The 2"^*^ to 6**^ segment of abdonien transparent 

 whitish with a U-shaped, reddish brown figure on the dorsum of 

 the Segments ; the figure touches the hind border of the segment. 

 On the sides of this figure there are found 3 small, round spots ; 

 the largest one is placed half way between the front and hind 

 borders , and the other two , of which the apical one is the 

 largest , are placed parallel with the side margin. Along the 

 lateral margin of all the segments there is a dark reddish brown 

 stripe, which does not reach the angles. Segments 7 — 10 are 

 yellowish red ; 7*^ and 8*"^ paler , and 9* and 10*^ darker. On 

 the dorsum of the 7*^^ to 9*^ segment an oblong , pale spot with 

 a very fine longitudinal line. The three above mentioned side 

 spots are also present on segments 7 — 9. The spiracles black. The 

 underside of the segments with 4 very small dark spots nearest to 

 the front border, and with a larger one at the hind angles. Forceps 

 yellowish white. Hind femora yellowish white with a reddish brown 

 band before the middle and with a broader one at the tip. Hind 

 tibia yellowish white. Fore wings hyaline with yellowish white 

 longitudinal nervures and with a yellowish tinge in the costal and 

 subcostal areas. The cross veins only visible when the wings 



