NO. 2008. NEW SPECIES OF THYSANOPTERA—ilORaAN. 41 



the labium broadly rounded. Maxillary palpi of medium size, the 

 first segment very short. Antennae about one and three-fourths 

 ^ times as long as the head, slightly separated at the base by a slight 

 projection of the head. Relative lengths of segments as follows: 



Segment one truncated cone-shaped; two urn-shaped; three to 

 five similar in shape. One and two dark brown; four to eight some- 

 what lighter brown than the first two segments; segment three 

 lightest of all. Spines light colored and inconspicuous. Segments 

 three to six each bear two small curved sense cones near the tip, one 

 on the inner side and one on the outer. 



Prothorax three-fourths as long as the head, and across outer 

 angles of the coxse one and one-half times as wide as the head. 

 Anterior marginal and midlateral spines wanting, those at the angles 

 present, but small, transparent and inconspicuous. Mesothorax 

 about one-seventh broader than the prothorax, its front angles 

 sloping abruptly, it converges posteriorly to its juncture with the 

 metathorax. Mesothorax with a small spine near each lateral angle, 

 also a similar spine on anterior margin on each side halfway from 

 lateral angle to meson. Metanotum weakly longitudinally striate. 

 Metathorax only slightly narrower than mesothorax, converging 

 posteriorly and broadly joined to the abdomen. Wings slender, 

 weak, and transparent, scarcely reaching past seventh abdommal 

 segment; and very slightly narrowed in the middle. Legs rather 

 short and stout, all femora somewhat thickened, the fore femora 

 noticeably so. All femora and tibias brown; all tarsi pale yellow 

 with a black spot at the tip within. Tooth upon inner side of fore 

 tarsi reduced to a slight swelling. 



Abdomen slightly wider than mesothorax, almost cylindrical to the 

 eighth segment, eighth and ninth segments converging rather abmptly 

 to the tube. Spines upon abdomen rather weak except on last three 

 segments where they are slightlystouter, longer, and more conspicuous. 

 Ninth segment bears a circlet of six long slender spines which are light 

 yellowish, and a few smaller spines. Of the long spines at tip of ninth 

 segment the two most dorsal ones are blunt; tube at the tip also 

 bears six long slender sharp-pointed spines of which the longest are 

 nearly twice the length of the tube; the tube also bears a few smaller 

 spines. A narrow dark line extends across the dorsum of segments 

 three to eight near the anterior margin. Sides of tube nearly straight. 

 Tube at the middle two-fifths as wide as long; nearly three-fifths as 

 long as head. 



Described from one specimen taken in sweepings. 



Locality, Clarksville, Tennessee, June 20, IQIL 



A. C. Morgan, collector. 



Type.— C&t. No. 15739, U.S.N.M. 



