THE GROUND HKKTI.KS. 4!) 



C. Under surface of thorax coarsely and sparsely punctate. 



35. CLAIRVILLEI. 



re. Under surface of thorax finely and densely punctate ; legs piceous. 



36. L.33VIGATUS. 



bit. Elytra punctate, at least on sides. 



(?. Whole surface of elytra sparsely and cnarsely punctate; length 



7-7.5 mm. 37. CICATRICOSUS. 



thl. liaised portions of elytra between the impressions not punctate; 



length s-s.5 mm. 38. FULIGINOSUS. 



ita. Thorax finely, evenly and densely punctate; front tarsi of male with 



three joints dilated; length <; mm. 30. RUSCARIUS. 



35 (150). ELAPHRUS CLAIRVILLEI Kirhy. Faun. I'.or. Amer.. IV, 1S37. 



Elongate-oblong. Obscurely bronzed, shining; elytra with a purplish 

 tinge; legs paler. Head sparsely punctate, vertex foveate, occiput deeply 

 impressed. Thorax not wider than head, disk with a deep fovea each side, 

 the base and apex sparsely punctured on the sides. Elytra with four rows 

 of eye-like fovete. Length 8.5 mm. 



One in Field Museum collection labelled "Ind. " Probably 

 from near South Bend. A member of the boreal fauna. 



36 (151). ELAPHRUS L.EVIGATUS Lee.. Ann. Lye. Nat. Hist., V, 1852, 200. 



Bronzed, shining, legs piceous. Elytra not punctured, the fovesu 

 purplish. Length 7-8 mm. 



Two specimens in Field Museum labelled "Iiid.'' Ranges from 

 Michigan to California. 

 :'>~ (153). ELAPIIRFS CICATKK osrs Lee., Ann. Lye. Nat. Hist.. IV. 1S4S, .",4s. 



Elongate-oblong. Dull brassy above; bluish beneath; tibi;e and tarsi 

 dull yellow. Thorax with a deep median impression and a small circular 

 fovea each side; the punctures, as well as those of elytra, much more 

 coarse and irregular in size than in niwuriux. Length 7-7.5 mm. 



Mud fiats, border of cypress swamp, Knox County; frequent lo- 

 cally. June 29-September 2. 



38 (155). ELAPHRUS FULIGINOSUS Say. Trans. Ame,r. Phil. Soc.. IV. ls:u, 



417; ibid. II. 520. 



Brassy-black, tinged with green above, metallic green below; tibi.-r 

 and tarsi reddish-brown. Thorax and sides of elytra sparingly punctate: 

 disk of latter in part smooth. Length 8-X..~i mm. 



A northern species taken sparingly along the beach of Lake 

 Michigan near Pine, Lake County. May 20-June 20. 



.".0 (160). KLAFHKUS KUSCARIUS Say. Trans. Amer. Phil. Soc.. 



IV, 1834, 417: ibid. II. 406, 530. 



Dull brassy above; metallic green beneath; impressions 

 of elytra purplish; legs reddish-brown. Thorax coarsely punc- Fig. 37 

 tate beneath, the disk with a faint median impression. Length (After Leng,) 

 6 mm. (Fig. 37.) 



