NO. 1310. NORTH AMERICAN THYSANOPTERA— HINDS. 177 



rounded; surface reticulated like head and concolorous with it; one 

 stout spine at each hind angle. Fterothorax on dor.sal line only two- 

 thirds as long* as wide, one and one-fourth times as wide as prothorax; 

 metathorax nearly as wide as mesothorax; color of ptero thorax some- 

 what more ^^ellow than head and prothorax; mesonotal phitc deeply 

 incised in middle ])ehind; reticulations converging to anterior end of 

 this incision. Wings very long and about one-tenth as l)road. over- 

 reaching the abdomen considerably; form and venation unique; fore 

 wings somewhat longer and a])Out one and one-half times as broad as 

 the hind wings; their front edge runs straight clear to the tip; the 

 hind edge runs nearly parallel to it till near the end, where it curves 

 forward to join the fore edge at the tip; the entire wing is bounded 

 by one very heavy ring vein. There appears to be only one longi- 

 tudinal vein; this at about basal fourth of w^ing curves forward to the 

 costal vein, which it joins;'^' then it curves backward and runs parallel 

 with and quite close to the hind edge till it joins the ring vein before 

 the tip. The costa bears no fringe, but is set with numerous stout 

 spines as is also the longitudinal vein; hind edge bears a double fringe 

 of long hairs; surfac^e of fore wing shows faint reticulation. There 

 are three rather faint brown spots on fore edge, the darkest being 

 where the fore vein joins the costa, and one longer spot on hind edge; 

 spines standing in these spots are much darker than the others. Legs 

 concolorous with body, finely reticulated; hind coxiB approximate; 

 fore femora brownish yellow, the others brown, 3'ellowish at extremi- 

 ties; tibiae and tarsi concolorous with second segment of antennae; 

 tarsi tipped with dark brown; spines very weak and light colored. 



Abdomen distinctly wider than thorax and broadly joined to it; 

 about twice as long as broad, ovoid, pointed at tip; general color 

 brown or yellowish brown; last three segments yellow; sometimes 

 the sides of each segment are much more 3'ellow than its brown central 

 area; anterior edge of segment one is curved forward very abruptly 

 in the middle forming a rounded apex to the dorsal plate; prominent 

 dark stripe on anterior edges of three to seven; anal spines weak and 

 light. 



Redescribed from five females taken in Amherst, Massachusetts, on 

 Kentia and J^/'ck.s. I have no male, but Heeger saj's: 



3fale. — The abdomen in males is distinctly more slender than in 

 females; is yellow-brown, thinly chitinized; about twice as long as the 

 meso and metathorax together; almost cylindrical, with tapering anal 

 extremity ; naked, set with some long bristles only at the hinder edge 

 of the last three abdominal segments. 



Foodjjlant.s. — Dr'acsentt, Ficus elastica^ Kentia halinorlna. 



«I believe that the fore vein coincides with the costal from the spot where they 

 johi, the cross vein being more apparent than real, and that the vein v.hicli runs 

 parallel with and close to the hind edge is really the hind vein. 

 Proc. N. M, yol. xxyi— 02 12 



