1917] HololeptincB of the United States 369 



length of first, one quarter the length of first, with a short 

 segment on the inner margin which bears a single bristle. Third 

 and fourth segments together a little longer than the second, and 

 equal in length to the fifth, third segment slightly shorter than 

 fourth. Labium with two jointed palpi, the first joint of which 

 is half the length of the second. Pronotum as large as head, 

 corneous with a deep median longitudinal furrow, the center 

 portion, triangular, the base of the triangle towards head, deep 

 chestnut brown, remainder light brown, a single bristle on each 

 side before the middle. Prosternum corneous with seven 

 differentiated areas, the center one triangular, with the apex of 

 the triangle towards the head, yellow brown; on each side of 

 this center area, a triangular area whose base is towards the 

 head, of the same color, outside of this a rhomboidal area of 

 lighter color, and posterior to the rhomboidal area, a white 

 area which carries the coxas. 



Meso- and metathorax short, one-third the length of the 

 prothorax. Mesonotum colored for its entire width, metanotum 

 with a broad band for almost the entire width, and a smaller 

 area' at each edge, sternites with three markings ; a broad band 

 across the center to the lateral halves, and at each end of this 

 band a smaller area, all colored light brown. Each segment 

 with a single marginal bristle. 



Nine abdominal segments are present, the first with two 

 complete transverse rows of ambulacral hooks dorsally, and 

 between each row the same arrangement of colored patches 

 in threes as on the metathorax. All the remaining segments, 

 except the ninth which bears none, have three rows of hooks, 

 and between each row the same arrangement of plates. On 

 the fold between the segments, on each side between the center 

 and the lateral colored areas, there is a small group of hooks 

 arranged in the arc of a circle whose center lies posterior; 

 behind the last rows of hooks on the segments themselves and 

 directly anterior to the small group mentioned above there is a 

 single seta with a few hooks around it. Ninth segment with a 

 pair of cerci, each composed of a basal tubercle which bears 

 a single bristle, a first segment which is stout and clavate 

 with a pair of stout bristles below the insertion of the second 

 segment which is one and one-half times as long as the first 

 segment, and half as wide, and bears at its apex a pair of strongly 

 diverging bristles. On the lateral margins of the abdominal 



