SUBFAMILY IX. — ZELIN^E. 569 



66. Femora, antennae and elytra pale; body more slender. 



541. CERVICALIS. 

 aa. Hind lobe of pronotum armed with two or more spines. 



c. Lateral angles of hind lobe of pronotum armed with a prominent 

 outward projecting- spine, the disk unarmed ; front lobe of prono- 

 tum sulcate at middle, hind lobe finely rugose, not sulcate. (Sub- 

 genus Diplocodus). 542. exsanguis. 

 cc. Both lateral angles and disk of hind lobe of pronotum armed with 

 short tubercles or spines. (Subgenus Pindus). 

 d. Front lobe of pronotum piceous, hind one paler; femora dull yel- 

 low, their apical halves in part fuscous; dorsal ridges of hind 

 lobe of pronotum distinct. 

 e. Femora with a single dark ring on apical half. 543. SOCIUS. 

 ee. Femora with two dark rings. 544. AUDAX. 

 dd. Both lobes of pronotum concolorous; femora olive-brown through- 

 out; dorsal ridges of hind lobe of pronotum scarcely evident. 



545. ANGUSTATUS. 



540 (768). Zelus bilobus Say, 1832, 12; I, 306. 



Elongate, subparallel; robust for the genus. General color orange- 

 yellow; joints 1 and 2 of antennae, disk of hind lobe of pronotum, basal 

 half of elytra except the extreme base, membrane, beak except basal 

 joint and femora and tibia?, black; joints 3 and 4 of antennae and tarsi 

 dark brown. Hind lobe of head rather strongly constricted behind its 

 middle. Pronotum broader behind and less narrowed in front than in 

 our other species; front lobe convex, sulcate at middle, its front angles 

 nodulose; hind lobe subdepressed, its humeral angles obtusely rounded. 

 Other characters as under generic heading. Length, 15 — 18 mm. 



Frequent throughout Florida, November — April; at hand 

 from nine stations, including Ormond and Key West and re- 

 corded from 20 others. Taken by sweeping herbs and low 

 shrubs along roadsides and in open pine woods; also from 

 beneath loose bark of dead oak, where it was hibernating in 

 small colonies, and by beating bunches of Spanish moss. Its 

 distribution is southern, ranging from North Carolina to 

 Florida and Texas. While it is a striking and easily recognized 

 species, nothing has been recorded regarding its habits. 



541 (770). Zelus cervicalis Stal, 1872, 90. 



Elongate, very slender. Dull straw-yellow; sides of head, espe- 

 cially the hind lobe, with two fuscous stripes; basal lobe of pronotum, 

 scutellum and clavus usually more or less tinged with fuscous; dorsal 

 surface of abdomen in part red. Hind lobe of head with sides sub- 

 parallel throughout. Pronotum gradually feebly narrowed from base to 

 apex; front lobe impressed at middle of base, its front angles ending 

 in small tubercles, disk of hind lobe with three wide shallow grooves; its 

 humeral angles obtusely rounded, slightly nodulose. Length, 11 — 14 mm. 

 (Fig. 141). 



