MO 1124. m: rrsioy of the mel \ son r—sr rnDEn. 34 1 



tiiH't tbrotijrlioiit tlionpli sliijlit; lateral <*arina»' obsc;ureoti tlie pro/oiia, 

 the iiiiddh'ot' the pro/oiia tumid on the upixT halt' of the lateral lobes; 

 transverse sulci of pro/ona distinct tlirou;ihont,not st'verinf^ tlie nuMliaii 

 tarina. Tefjniina considerably longer tlian the body. Supraanal plate 

 of male (so far as can be seen on the sinf^U* s[H»cimen in which the parts 

 are somewhat concealed) semiovate, broadly rounded apieally, lon;j:or 

 than broa<l; the forks of the furcula slender, aculeate, parallel, approx- 

 imate, about half as lonj^as the supraanal plate; eerci of moderate size, 

 <'on» pressed, the basal half taiuTing considerably. strai;^ht as seeu 

 laterally, directed backward, the apical half a little incurved, nearly 

 equal, enlarj^ing a little apieally and notched at the tip; subjj^enital 

 plate haustrate, rounded, entire. Hasal tooth of lower valves of 

 ovipositor sharp, trian«i:ular, as long as broad. 



The specimens on which this description is basetl were collected in 

 alcohol, and little can be said of their color; there is a more or less 

 broken bhu'k posto<'ular band crossin<i the prozona on the upper half 

 of the lateral lobes; the hind femora may have been faintly banded, 

 the hind tibiae were probably red, with black spines, and there is a dis- 

 tinct row of fuscous rectangular spots down the diacoidal area of the 

 tegmina, especially in the female. 



Length of body, male, 21 mm., female, 22 mm. ; antennae, male, 9 mm., 

 female, 8 mm.; tegmina, male and female, 19 mm.; bind femora, male, 

 12.5 mm., female, 13.5 mm. 



One male, 1 female. Arizona, Thomas. 



1 have never again seen the si)ecimens on which this species was 

 founded, nor any others that could be referred to it. Accordingly, with 

 slight change in the phraseology, I reproduce the original devscription, 

 to which I may add the following unpubliohed notes, taken while the 

 specimens were still in my hands: The species has very much the same 

 general appearance as .1/. femurruhrum. It has, however, entirely dif- 

 ferent abdominal appendages, as maybe seen above, and also slenderer 

 tegmina, in the venation of which it closely resembles M. lieeUri. The 

 prosternal spine is not very large, but moderately stout and bluntly 

 rounded at tip, a little appressed, and, on side view, not tapering; the 

 iiicsosternal lobes are much as in M. leeleri. The median carina is more 

 distinct on the metazona than on the prozona; the proi)ortions of the 

 prozona are as in ^f. l-ederi and the whole pronotum almost precisely 

 as in that species, with a little more rounded angle to the hind margin. 



Ii6. MELANOPLUS KEELERI. 

 (Plate XXIII, lig. 1.) 



Caloptenu8 keeleri ThomasI, Ball. U. 8. Geol. Surv. Terr., I, No. 2 (1H74). p. 69.— 

 Glover, 111., N. A. Knt., Orth. (1874), pi. xvii, fi;;. 1.— Thomas, Rep. U. S. 

 Ent. Coium., I (1878), p. 42.— Biuxek, ibid., Ill (1883), p. 60. 



Melauophis temhrosus Scri>i>ER!, Proc. Bost. 8oc. Nat. Hist. (1879), p. 63; Cent. 

 Orth. (1879), p. 52.— Bruner. Kep. U. S. Ent. Comm., Ill (1883), p. 60. 



Of medium size; above very dark, almost blackish brown, the male 

 darker than the female; beneath dirty olive. Head not elevated, the 



