THE STILT-BUGS. 335 



271 (420). Aknisus multispinus (Ashmead), 1887, 155. 



Pale straw-yellow; fourth joint of antenna?, except apex, and tips of 

 tibiae and tarsi, blackish. First joint of antennae nearly as long as second 

 and third united, second about one-fourth shorter than third. Spine of 

 scutellum nearly erect. Hind femora reaching tip of abdomen, female, 

 slightly surpassing it, male. Length, 5 — 6 mm. 



Crawford Co., Ind., Aug. 29, three specimens swept from the 

 margins of a garden on a high rocky slope at Wyandotte. Dune- 

 din, Fla., Feb. 15 — 25, three taken by sifting roots of clumps 

 of grass along a sandy road near bay front, and one, April 10, 

 while beating along the edge of a dense moist hammock. 

 Lakehurst, N. J., May 26 (Davis). Described by Ashmead 

 from Duval Co., Fla., and also by Van Duzee (1909, 163) as 

 Jalysus perclavatus, a synonym, from Crescent City, Sanford, 

 Tampa and St. Petersburg. Outside of Florida it has been re- 

 corded by McAtee (1919a, 82) from Missouri, Kansas and 

 Texas. The small size, pale color, spine on head, twisted osteo- 

 lar process, and lack of dark spot at tip of corium, easily dis- 

 tinguish it from Jalysus spinosus (Say) . 



IV. Protacanthus Uhler, 1893, 707. 



Head subglobose, strongly convex above ; antennae extremely 

 slender, first joint almost as long as the others united, second 

 and third subequal, fourth fusiform, slender, three-fifths as 

 long as third; beak reaching hind coxae; pronotum with front 

 margin elevated, produced each side into a straight, sub-erect 

 spine, disk with hind lobe densely punctate, strongly convex, 

 sides and median line with low carina?; scutellum with a long 

 curved spine; elytra wholly hyaline, slightly surpassing tip of 

 abdomen. Other characters as in key. One species is known. 



272 (424). Protacanthus decorus Uhler, 1893, 708. 



Elongate, very slender. Straw-yellow; head shining black; fourth 

 antennal piceous; front margin, carinas and spines of pronotum whitish; 

 femora sparsely dotted with brown; tibiae annulate with dark brown or 

 black; tarsi in great part fuscous. Structural characters as above. 

 Length, 3.5 — 4 mm. 



Grenada, West Indies ( I T . S. X. Mus. ) . A neotropical species 

 described from St. Vincent Island. Known also from Grenada 

 and Jamaica and taken by Van Duzee (1909, 164) at Estero, 

 Fla., May 7. Uhler (1894a, 181) states that in Grenada it was 

 beaten from herbage in late August at altitudes between 200 

 and 400 feet. 



