THE KIKEl'LIKS Oil LIGHTNING BIKiS. 



813 



1541 (4788). EROS MUNDUS Say. Bust. .Touru. Nat. Hist., I, 1835, 155; ibid. 



II, 633. 



Resembles tlie preceding but much smaller and with under side of 

 body red or scarlet; antennae black, the two basal joints scarlet; ventral 

 segments and tarsi often dusky. Length 6 mm. 



A species of southern range described by Say from Posey 

 County. Taken by Dury near Cincinnati ; not represented in the 

 collection at hand. 



1542 (4789). EROS SCTI.PTIUS Say. lor. cit.. 15<', 



Elongate, slender, subdepressed. Black 

 or piceous ; thorax reddish-yellow, usually 

 with a blackish spot on disk. Antennae elon- 

 gate, slender, third joint but little shorter 

 than fourth, second minute, about one-third 

 the length of third. Front middle cell of tho- 

 rax quadrate, carinate ; hind middle cell nar- 

 row. Elytra each with four strung discal 

 costie ; the lateral edge and sutural line 

 raised ; intervals each with a double row of 

 alternating irregular cells. Length 5-7 mm. 

 (Fig. 314.) 



Vigo and Posey counties; scarce. 

 June 3- June 22. Beaten from leaves of 

 hickory and ironweed. 



ibid. II, 633. 



Fig. 314. (Original.) 



1543 (4790). EROS HUMKRAUS Fab., Syst. Eleut, II, 1801, 111. 

 Resembles tliurucieus in color, but distinguished by having six cells 



on thorax, the middle front one with sides indistinct but with a strong 

 central carina ; hind middle cell narrow like a channel ; second joint of an- 

 tennae more than half as long as third. Length 8-10 mm. 



lake. Kosciusko and Posey counties: rare. May 2 8- June 3. 

 Described by Say from Posey County under the specific name 

 obliquus. 



1544 (4791). EROS TRILINEATUS Melsh., Proc. Phil. Acad. Nat. Sci., II, 



1845, 303. 



Elongate-oblong, depressed. Black or piceous, often with a rusty or 

 reddish-brown tinge ; sides of thorax dull yellow. Walls of front row of 

 thoracic cells obliterated, only the median cariua remaining; hind row of 

 cells consisting of a very narrow median and two large lateral ones, the 

 latter denned in front by the usual oblique transverse ridge, which is not 

 complete. Elytra each with three cost:e ; the lateral edge and suture raised, 

 the usual first costa of disk indistinct ; intervals each with a double row 

 of quadrate cells. Length 5-7.5 mm. 



Jackson. Crawford and Posey counties; scarce. June 24- 

 July 20. 



