80 Psyche [June 
femura. The metathoracic tibia are beset with numerous irreg- 
ularity arranged bristles. Terminating with one larger than the 
others. 
The antenne are stout and as long as the body, four segmented, 
the terminal segment is somewhat broadened and as long as the 
other three. The head bears no indication of ocelli but does pos- 
sess the black bristles indicated in the later instars. 
The limbs are stout, the tarsi one-segmented and ending 1 in two 
claws. 
The abdomen bears a dorsal pore on the median line of the dor- 
sum of the fourth abdominal segment. 
Later Instars. 
The second and later instars are bright green in color and more 
slender inform. They possess relatively few 
but retain the black bristles in the positions indicated in the first 
instar. There appear in these later instars one black bristle on 
anterior margin of fore femur and two on the other femora. The 
structural characters remain constant until the adult stage is 
reached when the following changes become apparent. 
The first antennal segment possesses but one black bristle instead 
of a number of them (usually). 
The limbs are more slender and tarsi 3-segmented. 
The connexivium is broad and the sexual characteristics appear. 
In the winged female there appear two dark ocelli-like spots on 
the vertex. 
The winged forms are often found with membrane missing. 
They have been observed to break away this portion of the wing 
with the hind tibia, exposing the tip of the abdomen as shown in 
Bie, 12 
Following is given a table of measurements of the various instars 
and of the adults: 
!Mr. J. R. de Ja Torre Bueno describes this habit in Halobatine. Canadian Ent., Vol. IX, 
No. 1, p. 389 (1908) 
