THE FIREFLIES OR LIGHTNING BUGS. 835 



1591 (4942). TELEPHORUS LUTEICOLLIS Gerin., Ins. Nov., 1824, 70. 

 Oblong, rather robust. Piceous; front of head, thorax, legs, narrow 



marginal and sutural lines of elytra and basal half of antenuse, yellow. 

 Thorax one-half wider than long, sides rounded, margins narrowly reflexed. 

 Length 5 mm. 



Lake County; scarce. May 24. 



1592 (4941). TELEPHORUS PUSILLUS Lee., Proc. Phil. Acad. Nat. Sci., V, 



1851, 343. 



Elongate, slender. Black or pie-eons; front of head, sides of thorax and 

 legs yellow; elytra with narrow sutural and marginal lines pale yellow. 

 Thorax not wider than long, sides nearly straight, not strongly reflexed. 

 Elytra sparsely clothed with semi-erect grayish hairs, the marginal and 

 sutural pale stripes much narrower than in scitulus. Length 4-6 mm. 



Throughout the State; common. May 12-July 5. Very close 

 to scitulus and probably merges into that species. 



T. rotundicollin Say, yellow, elytra and ventral segments often 

 piceous, is recorded from Illinois and Lake Superior. 



1593 (4953). TELEPHORUS TUBERCULATUS Lee., Proc. Phil. Acad. Nat. Sci., 



V, 1851, 341. 



Elongate, rather slender. Black, shining; mouth and thorax yellow, 

 the latter with a broad, black dorsal stripe which, in some specimens, is 

 wider along the basal and apical margins. Antennae of male two-thirds as 

 long as body, subserrate; those of female half as long as body. Thorax 

 quadrate in male, wider in female, disk with a deep median impressed line 

 and a transverse impression each side. Elytra coarsely rugose-punctate. 

 Length 5-7 mm. 



Lake, St. Joseph, Kosciusko and Wayne counties; common on 

 the foliage of alder (Aliius incana Wilkl.) and other shrubs along 

 the borders of marshes. May 12-June 1. Resembles lineola and 

 rectus, but readily separated by the form of the tarsal claws. 



1594 (4955). TELEPHORUS BILINEATUS Say, Journ. Phil. Acad. Nat. Sci.. 



Ill, 1823, 182; ibid. II. 118. 

 Oblong, robust. Dull reddish-yellow ; back 

 of head, elytra, two oblong spots on thorax, 

 antenme, except the basal joint, and tibia* 

 and tarsi, black. Thorax suborbicular, widely 

 margined, sparsely punctured. Length 6-8 mm. 

 (Fig. 325.) 



C ~7 ' 



Throughout the State; Common. Fig. 325. a, larva; b, head of sairj e' 



April 22-June 13. Mating May 3. Oc- 

 curs abundantly on flowers of the rod haw, C rat iff/us, and the foli- 

 age of many shrubs. 



