164 Annals Entomological Society of America  [Vol. V, 
broken into network or areolation by light spots which may be confluent 
into one or more cross stripes. Other segments with the caudal trans- 
verse stripe, this becoming broader on more caudal segments and 
extending on each side to the lateral dark spot, below which it is con-. 
tinued as a more obscure band formed by network of dark lines, the 
dark band transversely divided by a series of light spots. Prozonites. 
light brown. Anal scutum uniform dark brown, with anterior border 
pale. Legs light brown or yellowish. Antennze with proximal portion 
of each segment yellowish, the distal darker brown, especially in ulti-- 
mate articles. 
A broad transverse depression extending between eyes, 1n its mesal 
portion or adjacent to same lying the setigerous light spots above 
mentioned. A median longitudinal sulcus crossing vertex and ending 
in the transverse furrow. Head nearly free from ordinary type hairs. 
excepting the two setz mentioned and the bristles on clypeus and 
labrum. On lateral portions of clypeus and on the stipes of mandibles. 
is a number of peculiar, probably sensory, hairs, each of which is sub- 
clavate in form with a narrow apical process and a slender basal stalk 
inserted in a corresponding pit, near the upper portion of which it pre- 
sents a globose enlargement. (See Pl. XI, fig. 7). The tegument. 
about the basal stalk dark. 
Eyes triangular, an angle directed toward base of antenne, 
upper side straight, outer side convex above and concave below, mesal 
side concave above and convex below. Ocelli about 45 in 7 or 8 series; 
counting from above ventral, 8, 10, 8, 7, 5, 4, 2, 1. 
Antenne rather short, conspicuously clavate. 
First dorsal plate with lateral borders rounded anteriorly, not pro- 
duced, angular posteriorly; margined anteriorly and laterally, the 
elevated anterior margin widest mesally, not margined caudally. One 
or two rather weak striz on each side below extending from caudal 
margin cephalad part way across plate. 
Pores moderate, widely separated from the transverse suture which 
is straight or at most weakly sinuate at their level. 
Anal scutum with caudal portion subtriangular as usual, the apical 
process bluntly rounded and not at all decurved; plate crossed by a 
series of transverse furrows or sulci of which the more caudal ones are 
deepest; caudal triangular portion of plate with a series of setz along 
each lateral margin, three similar long sete springing from caudal 
process. Lower portion of segment bearing a long seta near middle 
height of caudal margin and a second in line with legs of more anterior 
segments. 
Anal valves nearly smooth, the mesal margins strongly elevated as 
usual; two setze on each valve just ectad of elevated mesal margin, one 
submedian and the second between this and the caudal end. 
Anal scale with anterior margin convex, the posterior portion sub- 
triangular its sides convex. <A long seta borne on margin each side of 
mesal line. <A dark line paralleling margin but indented mesally gives 
superficial appearance of caudal emargination to scale. 
