158 University of California Publications. | ZooLoGy 
with four terminal bristles nearly equal in length, inner bristle 
of furea much thicker than end bristles. Anterior antennae 
reach a little beyond the posterior end of the thorax. 
Fig. 23.—Euchaeta acuta. (a) Fifth foot of male X37. Ri. dz., inner 
ramus of right foot. Re. 3, dx., third joint of outer ramus. 
Re. 1, 2, sn., first and second joints of outer ramus of left 
foot. Proc., process. Sph., spermatophore. (b) Second-and 
third joints of outer ramus of left fifth foot of male «140. 
Parts as in a. (c) Second foot of male X60. (d) Maxilla 
of male X60. B.1, first basal. B.2, second basal. Le.1, first 
lobe of outer margin. fi., inner ramus. FRe., outer ramus. 
First lobe of outer border of maxilla (cf. fig. 25f) with six 
bristles( one very small), second basal with three, fused second 
and third joints of inner ramus with four. Outer border of 
