86 The Grasjjedosomatidse of North America. 



Clypeus sparsely hirsute below, rather jilane, a transverse depression above 

 the labrum. 



Eyes broadly subtriangular, the ocelli not arranged with much regularity, 

 the vertical rows being usually more evident than the horizontal. Ocelli 

 counted horizontally from above: 7+6+5+4+2=24, or 6+5+4+3+3=21, 

 1+6+5+4+3+2+1=22. 



Antennae moderately robust, somewhat clavate, ratio of lengths of joints, 

 beginning with the seventh : 2 :4 :8 :6 :10 :6 :2. 



Proximal joints sparsely, the distal niore densely hirsute. Below and lat- 

 erad from the antennal socket the margin of the head has a deep rounded 

 notch. 



Mentum broadly quadrangular-arcuate, all the sides curved, convex in 

 front, concave behind. 



Promentum triangular, subequilateral, posteriorly broadly emarginate; 

 sparsely hirsute. 



Stipes and lingual laminae sparsely hirsute. 



Lingual lobes with five sense cones. 



Styliform processes quadridentate. 



First segment broadly reniform, slightly emarginate in the middle poster- 

 iorly. A fine raised anterior margin; dorsal median line beginning just back of 

 the middle of segment; outer setigerous tubercles somewhat mesad from the 

 outer corners of the segment; second tubercle about midway between the first 

 and third. Tubercles minute, rather closer to the posterior margin than in 

 Underwoodia. 



Surface of segments appearing smooth, but reticulate-areolate as described 

 for Underwoodia polygama. On the sides and below the posterior subsegments 

 are longitudinally striate as in lulidse. On the first segment are no striations; 

 the second with but one above the lower tubercle; the third -with two; the 

 succeeding segments with three or four; below the lower tubercle about ten 

 striations, very distinct, at equal distances, somewhat oblique, the posterior 

 end lower. The suture between the subsegments is sinuate medianly, the an- 

 terior subsegment extending somewhat into the posterior. Tubercles minute, 

 located in depressions, on all segments except the first and last arranged in a 

 transverse line. No trace of lateral carinse, the striations of the side not 

 larger than those below. On posterior segments the strise below the tubercles 

 are somewhat more numerous. Corners of the segments below evenly rounded, 

 the margin somewhat thickened; the lower side of the submarginal furrow is 

 extended into a minute sharp tooth. 



Last segment truncate, tubercles located as usual ; conic processes and setae 

 not seen. 



Anal valves with the usual tubercles and long setae. 



Preanal scale semicircular, subtruncate posteriorly; two long bristles some- 

 what remote from the posterior margin and located upon a transverse thicken- 

 ing of the scale. 



Pedigerous laminae very small, coarsely areolate, subcarinate in front, 

 acuminate distad. 



