542 



FAMILY XVIII. EROTYLID/E. 



g. Head black; thorax oblong, its sides nearly parallel, disk with a 

 large greenish-black spot. 1035. lecontei. 



gg. Head more or less red; thorax elongate, distinctly narrowed behind 

 the middle, its disk with a greenish-black stripe. 1036. geacilis. 



1031 (3199). Langueia bicolor Fab., Ent. Syst, Suppl., 1798, 50. 



Elongate. Head and thorax reddish, the latter with a black spot on 

 disk; scutellum and elytra bluish-black, shining; beneath reddish-yellow, 

 legs, last abdominal segment and antennae, black. Thorax quadrate, obso- 

 letely punctate, rather narrowed in front, the sides rounded. Elytra! striae 

 not impressed but marked by rows of punctures. Length 8.5-12 mm. 



Throughout the State ; more frequent southward. May 1-June 

 25. Occurs especially on the leaves of the pale Indian Plantain 

 (Mesadenia atriplicifolia L.) in the stems of which the larvae live. 



*1032 (3200). Langueia mozardi Lat, Gen. Crust, III, 1S07, 66. 



Elongate, parallel. Head and 

 thorax red; elytra bluish- 

 black, shining ; beneath red, 

 the last two or three abdomi- 

 nal segments, tarsi, antennae 

 and apical half of femora, 

 black. Head and thorax spar- 

 ingly punctate. Elytra punc- 

 tate as in bicolor. Length 5.5- 

 8 mm. (Fig. 202.) 



Throughout the State; 

 ^ common. January 1-No- 



Fig. 202. Languria mozardi. a, egg; b, larva in clover stem; c, i i\/r x • t 



larva; d, pupa; e, adult. (After Comstock.) vember 8. Mates m June 



and may then be found es- 

 pecially on wild lettuce (Lactuca.) The larvae, known as the 

 clover-stem borer, ' ' live in the stems of clover and often do much 

 injury to that crop. 



L. discoidea Lee, length 7-8 mm., is known from the southern 

 States and may occur in southern Indiana. 



1033 (3204). Langueia angustata Beauv., Ins. d'Afi% 1805, 125. 



Elongate, rather narrowed behind. Head, antennae and elytra bluish- 

 black, the latter narrowly reddish, near middle of sides; scutellum black; 

 thorax reddish-yellow ; beneath reddish-yellow, the last two abdominal seg- 

 ments, tarsi and tips of femora, black. Thorax sparingly and indistinctly 

 punctate, the base strongly margined. Elytra punctate as in Mcolor. 

 Length 6-7.5 mm. 



Marion, Orange and Posey counties; scarce. April 26-October 

 6. Taken from flowers of Ranunculus and goldenrod. The speci- 

 mens at hand belong to the color variety uhlerii Horn. 



