THE TIGER BEETLES. 31 



//. Color coppery or purplish-green ; front of head hairy ; 

 elytra granulate-punctate. 6. PURPUREA. 



<c. Thorax slightly or not at all narrowed behind; markings com- 

 plete or nearly so ; colors usually dull. 



./. Elytral markings quite broad, connected at margin; humeral 

 luuule obliquely prolonged backward; labrum three-toothed; 

 larger, 16-18 mm. 7. GENEROSA. 



jj. Elytral markings narrower, less prominent, complete or in- 

 complete, not wholly connected at margin. 



/,-. Humeral luuule obliquely prolonged backward; middle band 

 not extended along the margin. S. VULGARIS. 



A-/,-. Humeral lunule C-shaped, not prolonged backward; mid- 

 dle baud (except in 12-</iitt<it<i) more or less extended 

 along the margin. 



/. Labrum three-toothed; apical lunule bent forward and 

 inward. 9. ANCOCISCONENSIS. 



//. Labrum one-toothed ; apical lunule not bent as above. 

 in. Marginal white line not connected with humeral lunule. 

 the latter not bent upward at posterior end; thorax 

 less hairy. 



. Elytral markings complete. 10. REPANDA. 



mi. Elytral markings broken into dots; form broader and 



flatter. 11. 12-GUTTATA. 



mm. Marginal white line connected with humeral lunule, the 



latter bent upward at its hind extremity; thorax 



very hairy. 12. HIRTICOLOS. 



fid. Pubescence beneath prostrate or decumbent ; outer margin of 



elytra in female angulate near apex. 



o. Elytra white with a few dark markings. 15. LEPIDA. 



no. Elytra cupreous or bronze ; markings complete. 



14. CUPRASCENS. 

 IKI. Under side of abdomen partly red. 



p. Elytra dark brown without a marginal white band, the markings 

 normal. 10. RUFIVENTRIS. 



^/>. Elytra greenish or fuscous with a white submarginal band. 



MARGINIPENNIS. 



'2 (17). CICINDELA UNIPUNCTATA Fab., Syst. Ent, 1775, 225. 



Dull brown, beneath dark blue; elytra rough with green 

 fovea and punctures, and with a triangular marginal white 

 dot. Length 10-18 mm. (Fig. 10.) 



Southern half of State ; frequent in Crawford and 

 Posey counties, less so in Vigo and Putnam. May 4- 

 Septeiiji/' r 5. Oecurs singly or in pairs on bare spots 

 in up! ' oods and along woodland paths. Instead 



i fi ';:=, ten alarmed, it often attempts to hide he- I IL ,. 10. 

 ne:. ;yes and stones, and can usually he readily (After 



<. i ; i ' r. Llvith the hand. 







