358 MEMOIRS ON THE COLEOPTERA 



above and beneath, shining, the upper surface more sericeous and with a 

 rich blue oblique reflection on the elytra; head with dense hair on the 

 frontal tumidity, the labrum abruptly produced forward in the middle, 

 the lobe tridentate; palpi black, with metallic green lustre; prothorax 

 two-fifths wider than long, nearly as wide as the head, feebly obtrape- 

 zoidal, without trace of coppery lustre; elytra two-thirds longer than wide, 

 three-fourths wider than the prothorax, with close granuliform sculpture, 

 the humeri with a large rounded pale spot, briefly prolonged posteriorly, 

 the anterior lunule otherwise not visible, the apical lunule very broad, 

 subdetached anteriorly from a large rounded discal spot; just behind the 

 middle there is a large, transverse, internally attenuated pale spot, 

 broadly truncate externally very close to the margin. Length ( 9 ) 

 13.0 mm.; width 5.2 mm. Nebraska (Sioux Co.). 



Differs from denverensis in the large humeral pale spot wholly 

 absent in the latter, in the broad apical lunule and more de- 

 veloped medial band and also in the beautiful rich sericeous blue 

 color of the elytra by oblique reflection, of which there is no trace in 

 denverensis. 



Cicindela denverensis ssp. oreada nov. -Similar to conquisita in 

 general form, color and rich blue sericeous oblique reflection on the elytra, 

 but with the latter relatively more elongate and differently maculate; 

 the humeral lunule is represented by a small spot at the humeri and an- 

 other at basal fourth at some distance from the edge, the middle band 

 by a short transverse dash from the median line to outer sixth, and the 

 apical lunule by a transverse, outwardly attenuated apical dash and a 

 discal spot at apical fifth or sixth and outer third. Length ( 9 ) 12.7 mm. ; 

 width 5.3 mm. Nebraska (Benkelman). 



While the above two forms may be regarded as subspecies of 

 denverensis, I think the indications are that pngetana and parallelo- 

 nota, described on pp. 20 and 21 of the present work, are specifically 

 different, though evidently related rather closely. These five 

 forms, together with sierra Leng, compose a series unmistakably 

 different from the true purpurea series in general facies and colora- 

 tion of the body.* 



Through the kindness of Mr. E. D. Harris, I have, within the 

 past few days, received an example of a wonderfully decorated 

 member of the purpurea group, which may be described as follows: 



Cicindela mirabilis n.sp. Stout in form, rather feebly convex, dull in 

 lustre, more shining beneath; head rugose, bright cupreous, the front with 

 two anteriorly diverging discal blue dashes, the sides of the base and the 



* The tibial differences referred to on page 21 (ante), in distinguishing between 

 denverensis and pngetana, do not exist, the mistake arising from having inadvertently 

 compared the posterior tibia of one with the intermediate tibia of the other. 



