NO. 2008. NEW SPECIES OF THYSANOPTERA— MORGAN. 29 



Segments three to eight stalked ; segments one and two yellow with 

 a slight tinge of brown; segments three to six slightly more heavily 

 tinged with brouTi than the preceding; seven and eight light brown. 

 Sense cones of medium size, transparent, located as follows: Segments 

 three" to six with two each, one on the outer side, one on the inner side 

 near the tip; segment seven with a small cone on the outer side. The 

 inner cone on six is also small. Mouth cone short, not attaining the 

 base of the prosternum, labrum pointed and just attaining the end 

 of the labium, which is broadly rounded. 



Prothorax large, length about 0.17 mm., width 0.34 through the 

 coxEe; front margin concave, hind margin convex, the curves of the 

 two margins being nearly concentric. Anterior marginal spines mi- 

 nute, other spines present, of medium size, blunt. Anterior coxal 

 spines present, equaling in size those at the posterior margin of the 

 prothorax, blunt. Pterothorax greatly reduced in length, as broad 

 as prothorax but only slightly more than half as long. General color 

 of legs slightly lighter brown than the body; all tarsi, tips of hind 

 femora, apical third of fore femora, bases of fore and hind tibiae, yel- 

 low. A dark spot at the tips of all tarsi within. Fore femora scarcely 

 enlarged. 



Abdomen very large and heavy, 1.4 times as broad as pterothorax, 

 deep brown; eighth and ninth segments narrow abruptly; ninth seg- 

 ment and the tube, yellow. Tube short, only very slightly more than 

 half as long as the head, its sides straight, very slightl}'^ infuscate at 

 the tip; twice as wide at the base as at the apex. Terminal bristles 

 slender, about as long as the tube. 



Described from two specimens, taken under bark at Corbin, Ken- 

 tucky, September 26, 1911, by the writer. 



Male. — Allotype. Extended specimen 1.3 mm. in length. A con- 

 tracted specimen would probably be shorter than the female. Color 

 similar to that of the female except the antennal joints, which are 

 slightly browner. 



Head 0.2 mm. in length, width 0.13. Lateral margins of the head 

 with an angular protuberance just behind the eyes. 



Prothorax, length 0.2 mm., width through coxae 0.31. Fore femora 

 much enlarged, as broad as the head; fore tarsus armed with a stout 

 tooth; a blunt tooth-like projection on inner side of fore tibiae. 

 Pterothorax, width 0.3 mm. 



Abdomen much more slender than in the female, greatest width 

 0.31 mm. 



One specimen, Corbin, Kentucky. Taken with the females under 

 bark by the writer. 



Type.—Csit. No. 15733, U.S.N.M. 



