woim liKvisios nF iin: Mhi.\stH'i.i-!<rinnKR. 47 



IoIm'H, the front iiiuiKi" sul»rrmir}it<', tin* liiinl tiuirgiii very obtiisi'ly 

 aii^'ulate, tin* very coarwMy, l'«M«hIy, ami sparni'ly piiiictati' pro/.oiia lialf 

 an loii^j ajruiii us tlu» tliioly am! sud«l«'iily piUH'tato ni«*ta/oiia, its ptisttv 

 rior iiiar«:iii faintly aiijruliirly «'marj;iiiat«*, tlu' transvtMso sulri f»M*hle, 

 ont* <livi<liiijr it into two vi\\\.\\ lialvrs ami Htrai{;lit, tlitM>tlnT a tliird 

 tin- way iM'liinil it to tli«^ int'ta/.ona and sinnah*. I'rosternal spim» t'HMt, 

 UHMliMately slrmli'i, <*oni<al; intrrsparr bftwetMi inrsosternal lol)«H 

 nioH' tlian Xw'wv as lonjr (inalr), or nearly half as Ion;; a^TJiin (ftMnale) a8 

 its middle breadth, the shape beiii^ stron^^ly <'h'psy<lr:il from the eon- 

 vexitvof the inner marj^in of the lobes, the metasternai lobes snbat- 

 tin;rent, e8|>eeially in tlie male. Te;;mina abbreviate, acuminate, attin- 

 "ent or ovcrlai)pinKi Jibont as lon^ as the pi'onotum. Fore and miildle 

 feniora slightly tumid in the male; hind femora slender, somewhat 

 compressed, the lower genicular lobe not free from markings, the hind 

 tibiae with nine to ten spines in th<^ outer series. Abdomen of male 

 not clavate nor curved upward apically, the lateral margins of the sub- 

 genital plate straight from the very base, aeutangulate at tip, with a 

 slight, blunt, apical tubercle; cerci very slender and simple; furcula 

 consisting of a pair of slight cylindrical skMub'r lingers, subparallel <»r 

 more or less crossing one another. pcrha])s parallel in life. 



This genus was establisluMi by Krunner upon three species, one ()f 

 which must be referred to 1h'sper(tt<ii'u\, since the lateral margins of 

 tlu' siibgeiiital plate are clearly ampliate at the base; while another has 

 here been ]daced in a near and neighboring genus, ('umptilavuntha^ 

 leaving //. (ilha as the type and at present the only known member of 

 tlie genus. It is found in our Western States only, east of the Kocky 

 Mountains, and from Nebraska southward. 



HYPOCHLORA ALBA. 



(Plate IV, fiK. 2.) 



I'e:otett\x alha Dodoe!, Can. Ent., VIII (ISTfi), p. 10.— Hrixer!, ibid., IX (1877), 

 p. 144.— Thomas, Ann. Hep. Chief Ku<;., 1S7S, IKI.') (1S7S).— Hkinkk:, Kep. 

 U. S. Ent. Comni., Ill (1S83), j.. 59; Bull. Div. Ent. U. S. Dep. AkHc, 

 IV(1H84), p. 58.— KiLEV. Stand. Nat. Hist., II (1884), pp. 201-2(12.— Bhixek!, 

 Bull. Washb. Coll., I (1885). p. 136; Kep. U. S. Ent., 1885 (1880), p. 307.— 

 ()sB«.KN, Tror. Iowa Acad. Sc, I, Pt. ii (1892). p. 117.— Bruxer!, Publ. Nebr. 

 Acad. Sc, III (1893), p. 27. 



Ififporhloia alha Brunxer, R^v. Syst. Orth. (1893), p. 145. 



Pale yellowish green with very feeble markings. Head pale yellowish 

 gieen, often more or les.*? grayish and punctate or irrorate with pale 

 Icrmginous, and sometimes with a feeble inconspicuous pallid stripe 

 liom the upper margin of the eye backward; antennae pale luteous at 

 base becoming ferruginous and at tip sometimes infu.scated. l*rono- 

 tum pale yellowish green, sometimes grayish, rarely brighter green, 

 not infrequently sprinkled with ferruginous dots, the position of the 

 lateral carinae in best-marked specimens marked with an inconspicuous 

 pale yellow stripe, sometimes very iucousiiicuous, deepening in color 



