494 Mr. H. W. Bates's additions 



colour of the green variety is clearer than in Leconte's 

 var. j^f'^^^''^^' Ii^ ^11 the varieties the penultimate 

 joint of the labial palpi is white in the 3' , and dark 

 metallic, like the rest of the palpi, in the ? ; the 

 sculpture of the head and thorax is very faint, and the 

 elytra are smooth except near the base, where they are 

 distantly granulate-punctulate ; the under surface is 

 shining brassy green, the abdomen inclining to chaly- 

 beous ; the middle part of the labrum is produced, tri- 

 dentate in the ^ and quinquedentate in the 2 , the 

 lateral teeth being very small. 



Cicindela thalestris. (PI. XVI., fig. 1). 



C. obsoleta (Say) paullo minor fronte utrinque acutius striata 

 corporeque subtus fere toto glabro ; supra opaca, viridis, elytris 

 (marginibus exceptis) fusco-viridibus immaculatis, subtus nigro- 

 chalybea lateribus plus minusve purpureis ; labro ^ J medio 

 parum producto et valide trideutato ; palpis labialibus articulo 

 penultimo 3' albo-testaceo, $ fusco-testaceo. Long. 18 mm. 



Hah. Ventanas in Durango (Hoge). 



Closely allied to C. ohsoleta, but having a different 

 facies owing to the somewhat more convex and rounded 

 thorax, and relatively shorter elytra gradually though 

 slightly widened in both sexes to a little before the apex. 

 The colour does not differ much from Texan examples of 

 C. obsoleta, var. prasina, Lee, but the species is certainly 

 different, and the armature of the labrum, strongly tri- 

 dentate in both sexes, whereas it is five-toothed, the 

 middle tooth alone large, in C. obsoleta ? , readily dis- 

 tinguishes them. The species, in fact, is somewhat 

 intermediate between C. obsoleta and C. pulchra. In all 

 the examples the under surface is destitute of hairs ; 

 none at all are visible on the sides. 



Cicindela scotina. 



Elongata, atra opaca femoribus cyanescentibus ; labro albo, 

 medio (3) paullo baud abrupte producto tridentato (dentibus 2 

 lateralibus parvis), fronte plana subtilissime vix perspicue strigulosa, 

 oculis mediocriter prominentibus ; thorace quadrate lateribus 

 rotundatis, sulcis profuudis, disco vix perspicue striguloso ; elytris 

 dimidio basali aspere sat distantcr punctatis dimidio apicali Isevi, 



