NO. 1124. 



REVISION OF THE M KLAXol'IJ SC UDDER. 47 



lobes, the front margin subtruncate, the hind margin very obtusely 

 angulate, the very coarsely, feebly, and sparsely punctate prozona half 

 as long again as the finely and suddenly punctate metazona, its poste- 

 rior margin faintly angularly emarginate, the transverse sulci feeble, 

 one dividing it into two equal halves and straight, the other a third 

 the way behind it to the metazona and sinuate. Prosternal spine erect, 

 moderately slender, conical; Interspace between inesosternal lobes 

 more than twice as long (male), or nearly half as long again (female) as 

 its middle breadth, the shape being strongly clepsydral from the con- 

 vexity of the inner margin of the lobes, the metasternal lobes subat- 

 tingent, especially in the male. Tegmiua abbreviate, acuminate, attin- 

 gent or overlapping, about as long as the pronotum. Fore and middle 

 femora 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 the outer series. Abdomen of male 

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

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

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

 consisting of a pair of slight cylindrical slender fingers, subparallel or 

 more or less crossing one another, perhaps parallel in life. 



This genus was established by Brunner upon three species, one of 

 which must be referred to Hesperotettix, since the lateral margins of 

 the subgenital plate are clearly ampliate at the base; while another has 

 here been placed in a near and neighboring genus, Campy lacanthaj 

 leaving H. alba as the type and at present the only known member of 

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

 Mountains, and from Nebraska southward. 



HYPOCHLORA ALBA. 



(Plate IV,. fig. 2.) 



Pezotettix alba DODGE!, Can. Ent., VIII (1876), p. 10. BRUNER!, ibid., IX (1877), 

 p. 144. THOMAS, Ann. Rep. Chief Eug., 1878, 1845 (1878). BRUNER!, Rep. 

 U. S. Ent. Conim., Ill (1883), p. 59; Bull. Div. Ent. U. S. Dep. Agric., 

 IV (1884), p. 58. RILEY, Stand. Nat. Hist., II (1884), pp. 201-202. BRUNER!, 

 Bull. Washb. Coll., I (1885), p. 136; Rep. U. S. Ent., 1885 (1886), p. 307. 

 OSBORN, Proc. Iowa Acad. Sc., I, Pt. n (1892), p. 117. BRUNER!, Publ. Nebr. 

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



Hypoclilora alba BRUNNER, Re>. Syst. Orth. (1893), p. 145. 



Pale yellowish green with very feeble markings. Head pale yellowish 

 green, often more or less grayish and punctate or irrorate with pale 

 ferruginous, and sometimes with a feeble inconspicuous pallid stripe 

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

 base becoming ferruginous and at tip sometimes infuscated. Prono- 

 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 inconspicuous, deepening in color 



