GRASSHOPPERS IN GENERAL. 35 



Antennm. Third joint more than twice as long as the second. 

 Arista fully as long as the second and third joints together, composed 

 apparently of but two joints, of which the basal is very small and 

 about as long as broad ; the terminal tapering as usual (its basal and 

 apical thirds black, its middle third whitish), and feathered for rather 

 more than half its length with rather long, fine hairs. The yellow, or 

 perhaps I should say reddish yellow, color is more extensive on the 

 antennae of the female than of the male. 



The vibrissal angle is a little above the mouth edge, and slightly 

 but distinctly narrows the clypeus. Dorsad the principal vibrissa, 

 the vibrissal ridge is beset with small bristles its entire length. 

 Ventrad the principal vibrissa are about three smaller vibrissae. 



The dorso-ventral diameter of the bucca is one-third that of the 

 eye. It is quite evenly beset with small bristles, which are larger 

 toward the edge of the mouth opening, where they form a distinct 

 bordering row. 



MacrochaBtse of vertex, front, etc. Male : By far the largest of the 

 vertical bristles is the inner vertical; the outer vertical is scarcely if 

 at all larger than the cilia of the posterior orbit. The greater ocellar 

 are small; the lesser ocellar very small. Of the latter there are 

 several pairs, and they extend over upon the occipital surface of 

 the head, beyond the post- vertical pair, which is small, &iid very 

 evidently a member of the ocellar group, The occipito- central iff 

 present, and is about as large as the post- vertical. There are two or 

 three ascending and about eight decussating transverse frontals. The 

 latter extend down upon the gena about as far as the apex of the 

 second antennal joint. Upon the geno-plate laterad the frontals 

 there are no large bristles, but an irregular row of exceedingly minute 

 hairs, which begins at or a little dorsad of the middle of the geno- 

 vertical plate and extends ventrad on the geno-vertical plate and on 

 the gena nearly or quite to the ventral end of the latter. On the gena 

 this row has a tendency to become double and the last three to five 

 members of the anterior row are much larger than the rest, thus form- 

 ing a rather prominent little group near the lower corner of the eye. 

 The ciliaB of the posterior orbit are small, closely set, and well aligned. 

 Parallel to them is a second distinct row of bristles of about the 

 same size. 



Female : The bristles of the head of the female differ from those of 

 the male as follows : The outer vertical is almost as well developed as 

 the inner vertical. The transverse frontals number but five or six. 

 The row of minute hairs on the geno-vertical plate and gena has a 

 lesser tendency to become doubled on the gena. Two good-sized or- 

 bital bristles are present. 



