427] COLORS OF TIGER BEETLES— SHELFORD 33 



Figure 169 shows the extreme extension of the white; 168 shows a 

 reduced pattern of the same type ; 175, a species with three represent- 

 ed simple stripes ; while 183; has only one stripe ; 170 and 170a show 

 the variation in one species in which the middle white stripe may be 

 either present or absent, and the two posterior cross bands are present 

 and curved like the end of the elytron. In 171 the cross band is broken 

 away from the innermost longitudinal stripe in the area of the dark 

 line of the media trachea ; 172 shows a wide middle band with the 

 longitudinal stripe represented only in the anterior portion. Figures 

 173 and 174 show types with connections between an outer, unpig- 

 mented side and the central light stripe in the center. Figures 177. 

 178, and 171 show a combination of the lateral stripe and the cross band 

 5.6; 180 to 181a show patterns which may have arisen from types like 

 figure 158 above. Comparing 177, 182, 184, 184a, and 176, one notes 

 varying lines of oblique connection to which attention was called in 

 figures 78 to 87, plate VII. Figures 188 to 231, plate XIII, show 

 cross bands in the Indian-African-Australian group in which reversed 

 obliqueness of the central band 4 is developed. This obliqueness is rare 

 outside this group except in forms with a well developed sinnate middle 

 band (e. g. Figs. 292 to 298, PI. XV). Figures 188 and 188a show 

 the well developed cross bands, 1 and 2.3 being joined at the side ; 189 

 is similar and 1 and 2.3 are joined obliquely; 190 is similar but reduced. 

 198 and 199 are similar to 188 but have lost the last cross band 

 and further reduction in the same direction would result in patterns 

 like 197, 205, and 206. 191 to 196 show a series based on the central 

 white stripe variously broken into spots representing cross bands. 200 

 to 204a and 213, plate XIII, are a series of related species occurring in 

 India which show an unusual oblique arrangement and combination. 

 209 an African species belongs to a group with pilosity similar and 

 closely related to the Indian group including 201 to 204a ; it shows the 

 same type of obliqueness in the central marking as in 200. 210 to 212, 

 plate XIII, show further modification of the central band and connec- 

 tion with the oblique humeral curve in the line of the central light 

 space. 220 shows a slightly different trend of similar elements which 

 give the combination in 221 or 220 and 219, depending on the trend 

 taken. 214 to 218 and 222 to 231 show T the simple patterns of cross 

 bands in which the last and usually the first are missing. 232 to 240 

 show combinations of markings resembling those just noted in Cicindela, 

 in Therates, Prothyma and Odontochila; compare 232 and 197, plate 

 XIII ; 233 and 206, 234 and 197 ; 235 and 219 ; 236 and 219 ; 237 and 

 188; 238 and 239 with 210 and 213; and 240 with 188. There are 

 resemblances between patterns in other genera and those in Cicindela. 

 One note-worthy African species (PI. XIV, Fig. 242 — compare 



