SUBFAMILY IX. — ZELIN^E. 571 



nal somewhat thickened and genital segment ending in a short 

 decurved spine. About Buffalo, N. Y., Van Duzee found it 

 "not uncommon on small trees in May and June, reaching 

 maturity about June 1st." The previous records in this coun- 

 try have been mostly under the name of Diploda luridus Stal, a 

 synonym. The Darbanus georgioe and D. palliatus Provancher 

 (1887, 181, 182) are placed by Van Duzee (1912, 324) as 

 synonyms of exsanguis. 



543 (774). Zelus SOCIUS Uhler, 1872, 420. 



Elongate, slender, subparallel. Fuscous-black or dull brownish-yel- 

 low; hind portion of head often with a narrow median line and a small 

 spot behind each eye yellowish; hind lobe of pronotum paler than front 

 one, the edge of its side and hind margins yellowish-white; apex of scutel- 

 lum yellowish; elytra fuscous-brown, the main nervures and narrow 

 costal margin often in part paler; femora dull yellow, the apical fourth 

 fuscous, the two hues on front femora usually separated by a paler ring; 

 under surface fuscous with a median pale line or stripe on abdomen and 

 spots on sides reddish-bi-own, rarely wholly of that hue. Hind portion 

 of head gradually and feebly narrowed. Pronotum subcampanulate, its 

 front lobe with a rather wide median impression on its basal half; hind 

 lobe with four low but rather acute carina?, each terminating in a small 

 erect conical tubercle. Length, 13 — 15 mm. 



Miller, Lake Co., Ind., June 27 — July 18 (Gerhard) ; beaten 

 from pine. Lakehurst, N. J., July 30 — Sept. 6 (Davis). Aber- 

 deen and Southern Pines, N. Car., March — June (Brimley). 

 Ranges from Quebec and New England west to Utah, Idaho 

 and California and south to Florida, Texas and Arizona. Re- 

 corded from Crescent City and Allen River to Deep Lake, Fla., 

 but these records probably refer to angustatus Hussey. Hart 

 (1907, 237) states that in northwestern Illinois it is "common 

 on Rhus aromatica in June and on Mesodenia atriplicifclia flowers in 

 August." 



544 (_). Zelus audax Banks, 1910a, 325. 



General color dull brownish-yellow; vertex fuscous with a pale stripe 

 each side; head behind eyes black, the median carina and sides yellow; 

 front lobe of pronotum piceous-brown ; membrane whitish-hyaline, the 

 veins brownish; beak dark brown; legs dull yellow, coxa? fuscous, apical 

 halves of femora with two brown rings ; tarsi and tips of tibia? fuscous. 

 Antenna? dull yellow, the incisures fuscous; joint 1 as long as head and 

 pronotum united, 2 and 4 subequal, each about one-third the length of 1, 

 3 one-third longer than 1. Head without antenniferous spines. Hind 

 lobe of pronotum with rather wide median and lateral grooves, the ridges 

 separating them ending behind in four distinct obtuse tubercles. Length, 

 13—14 mm. 



