THE TIGER BEETLES. 31 



('. Color coppery or purplish-greeu ; front of head hairy; 

 elytra grannlate-punetate. 6. purpdeea. 



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

 plete or nearly so ; colors usually dull. 

 J- Elytral markings quite broad, connected at margin ; humeral 

 lunule obliquely prolonged backward ; labrum three-toothed ; 

 larger, 16-18 mm. 7. genebosa. 



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

 complete, not wholly connected at margin. 

 k. Humeral lunule obliquely prolonged backward; middle band 

 not extended along the margin. 8. vulgabis. 



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

 dle band (except in 12-giitt<ita) more or less extended 

 along the margin. 

 I. Labrum three-toothed; apical linuile bent forward and 

 inward. 9. ancocisconensis. 



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

 III. Marginal Avhite lino not connected with humeral lunule. 

 the latter not bent upward at posterior end ; thorax 

 less hairy, 

 n. Elytral markings complete. 10. kepanda. 



nil. Elytral markings broken into dots; form broader and 

 flatter. 11. 12-guttata. 



mm. JIarginal white line connected with humeral lunule, the 

 latter bent upward at its hind extremity; thorax 

 very hairy. 12. hikticollis. 



(Id. Pubescence beneath prostrate or decumbent ; outer margin of 

 elytra in female angulate near apex, 

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



00. Elytra cupreous or bronze ; markings complete. 



14. CUPEASCEXS. 



(la. Under side of abdomen partly red. 



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

 normal. 10. edfivbntris. 



pp. Elytra greenish or fuscous with a white submargiual band. 



MAKGINrPENNIS. 



2 (17). CiciNDELA TJNIPUNCTATA Fab., Syst. Ent., ITT.j, 22."i. 

 Dull brown, beneath dark blue; elytra rough with green 

 fovea and punctures, and with a triangular marginal white 

 dot. Length IG-IS mm. (Fig. 10.) 



Southern half of State : frequent in Crawford and 

 Posey counties, less so in Vigo and Putnam. Ma.^' 4- 

 September 5. Occurs singly or in pairs on bare spots 

 in upland woods and along woodland paths. Instead 

 of flying when alarmed, it often attempts to hide be- Fig. lo. 



neath leaves and stones, and ran usually lie readily "After Leng.) 

 captured with the hand. 



[3—23402] 



