429] COLORS OF TIGER BEETLES— SHELF ORD 35 



near the apex, this is an unusual variation in a race of a European 

 species. Figures 361 to 363 show a tendency in certain species for the 

 formation of a vitta in the space between the subcostal and radius 

 (tracheae). Figure 364 shows an unusual joining of the marking of a 

 specimen of C. linibalis loaned by Professor H. F. Wickman, in the space 

 between the subcosta and the radius, though the species rarely has the 

 markings joined and when so not in this line {A) but in line a. 365 

 shows an aberrant marking in the central part of the elytron of C. 

 campestris, which is a common European species. 366 shows the darker 

 spots about the white marking in a closely related species. 370 to 377 

 show the patterns of other genera ; compare 370 and 362 ; 371, and 185 ; 

 372 with 367 ; 373 with 367. 



Figures 402 to 478 are presented to show series of unusual com- 

 binations illustrated by the Indo-Australian group of species. 378 

 shows a marking projecting backward composed of the band 2.3 and 

 the longitudinal part of the pattern plan which lies between the media 

 and the cubitus (tracheae) ; the lettered number of the same species 

 shows the extinction of the white. 386 shows an unusual type of 

 pattern in which the curve appears to rise in cross-band 3 while the 

 light stripe between the media, and cubitus is obliquely joined in the 

 anterior end to the central spot at the elytral base. Extension of the 

 white is common in variations in this group (383, 384, 385), 379 to 382 

 show a combination between the middle band and the central basal 

 spot and spreading of the white. 389 shows a similar pattern but with 

 the joining in the cross-band 2.3 and extension of the white. 387 and 

 396 are somewhat generalized, representative of the type in question 

 which with slight modifications may have led to the 397 and 398 series 

 of patterns (/) or by extension tq the 392-395a series and 400. The 

 balance of the illustrations show the unusual patterns of the Cicindelas 

 both reduced to a single marginal stripe and in full form. Most of the 

 species represented are from Australia and New Zealand. 



Figures 422 to 454, plate XVIII, show 1 the unusual marking of 

 Cicindelas with slight distortions, but all the patterns belonging to 

 groups of species which show a strong tendency in the chief representa- 

 tives to vary in the direction of nearly all white individuals. The irregu- 

 lar and oblique marking in figures 422 and 423, representing two South 

 American species, shows an unusual type of degeneration of the system. 

 The peculiar irregular, branched and scattered character of the mark- 

 ings of several groups shown indicates the breaking up of the system 

 of marking which has been designated as the type upon which they 1 

 based. 



The different species are characterized by peculiar turns forward 



