CICINDELID.E AND CARABID/E 39 



differ very much in general outline of the body, as well as in the form 

 and extent of the apical white marking. The true politula has the 

 elytra nearly or quite twice as long as wide in the female, parallel, 

 with the sides feebly arcuate to the apical rounding beginning at 

 about apical fifth, and the only white maculation is a slender mar- 

 ginal dash occupying the median part of the apical arcuation on 

 each elytron and widely separated from the sutural angles. 



Cicindela politula ssp. cribrum nov. Color, sculpture and shining 

 elytra as in politula, the head and prothorax with less metallic blue at 

 the sides and in the sulci; head a little smaller, the lines forming the inner 

 margins of the eyes more convergent; labrum similar, the apex truncate 

 medially, with a single very minute blackish denticle; elytra glossy, 

 deep black, the lateral margin very finely bluish, one-half longer than 

 wide, the sides very feebly arcuate, rather strongly diverging from the 

 base to about apical fourth, there gradually and broadly rounding 

 semicircularly about the apex, the sutural angles minutely spiniform, 

 the serrulation extremely minute; surface with evenly distributed strong 

 punctures, finer apically ; white maculation consisting of a full long apical 

 lunule, from the angles to apical fifth but not much swollen at its ex- 

 tremities. Length (9) H-8 mm.; width 4.2 mm. Texas. 



A very distinctly marked form allied to politula and probably 

 of higher value than the subspecies. 



31 The rufiventris group comprises three distinct sections or 

 subgroups, represented first by rufiventris and cumatilis, secondly by 

 hentzi and i6-punctata and thirdly by hcemorrhagica and arizontz. 

 I have in my collection an undescribed form in each of these sub- 

 groups as follows: 



Cicindela rufiventris ssp. collusor nov. Form shorter than in rufi- 

 ventris, the coloration similar, except that the elytra are a little more 

 shining, subcupreous, and, toward the lateral edges, are more convexly 

 declivous, with a broader purple stripe along the beading; labrum with 

 the median produced lobe much broader, the single tooth longer, spinuli- 

 form; head and prothorax similar but less opaque; elytra similar in form 

 but a little shorter and relatively broader, differing greatly in sculpture, 

 the punctures being much coarser and very close-set, the pale markings 

 on each consisting of a small point representing the posterior end of the 

 humeral lunule, an elongate spot near the edge at posterior third, a very 

 small discal point on the median line near apical fifth and a well developed 

 apical lunule which is inflated near the suture. Length (9) H-5 mm.; 

 width 4.5 mm. A single example without indication of locality from the 

 Levette collection. 



This form also is probably of greater value than the subspecies, 

 but is placed in that category for the present. 



