6 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



very slightly behind; anterior margin straight; back of head indis- 

 tinctly transversely striated. Eyes large, dark, and sparsely pilose, 

 occupying about three-fifths the width of the head, not protruding, 

 rather coarsely facetted; ocelli present, separated, pale yellow, 

 margined inwardly with orange crescents; spines in front of each 

 posterior ocellus long and dark brown, two uiconspicuous spines 

 stand behind each posterior ocellus. One prominent dark brown 

 spine behind each eye, slightly shorter than spine in front of ocellus; 

 two or three shorter light brown spines between this spine and 

 lateral margin of head. First and third segments of maxillary palpi 

 of equal length, the second slightly shorter. Antennae nearly two 

 and one-half times as long as the head; relative lengths of segments 

 as follows : 



1 2__ ^ _4_ _5_ _G_ _2_ _8^ 



7.6 10.2 14.4 13.5 10.5 Ki.S 2.9 4.5 



Color: One pale yellow, concoiorous with head; two brown like 

 the abdomen; three light brown, grayish in basal half; four and five 

 light brown, slightly gray at bases; six, seven, and eight light brown. 

 Spmes upon segments two to five brown and conspicuous. A branched 

 sense cone on the dorsal side of segment three near the tip and a simi- 

 lar one on the ventral side of four near the tip. Sixth segment bears 

 one long, slender sense cone on the inner side about the middle, and 

 a shorter one on the outer side. Last three segments bear numerous 

 small spines. The last segment bears three small hairs at the tip 

 which about equal the segment in length. Mouth cone is tipped 

 with black and reaches three-fourths across the prosternum. 



Pro thorax rather rounded, two-thirds as long as broad; one pair 

 of stout spines at each hind angle, one of similar length at each 

 anterior angle; anterior margm also bears a spine of similar length 

 half-way between meson and spme at anterior angle; one short, stout 

 anteriorly directed spme stands near spine at anterior angle. Between 

 the spines at the anterior angles and the meson there is a row of five 

 spines of which only the fourth is long and stout. Mesothorax 

 rounded at anterior angles with a distinct shoulder-like process; 

 mesonotal plate bears one stout spine at each lateral angle and two 

 pairs of smaller ones on posterior margin. Metathorax tapers slightly 

 posteriorly, angles rounded behind ; metanotal plate weakly reticulate 

 and bears four spines on the anterior margin of which the middle pair 

 is stout and conspicuous. Wings nearly reaching the tip of the 

 abdomen, breadth at middle about one-twelfth the length; shaded 

 decidedly with brown, a grayish spot between vems near origin of 

 hind vein, basal fifth grayish. Spines on wings dark brown, stout 

 and conspicuous. Each fore wing has two longitudmal veins extend- 

 ing to the tip. Spines arranged at regular intervals; costa bears 22 

 to 25; fore vein 17 to 20; land vem 13 to 16; scale five, interior of 



