OBSERVATIONS. 



Numerous specimens were observed by Major 

 Long's party in Missouri and Arkansaw. They 

 occurred in the prairies on plants, and I found 

 them to be especially abundant near the village 

 of the Konza Indians. 



It is, without doubt, closely allied to the pre- 

 ceding, but the anterior band of the elytra is 

 always deficient, the tibiae are somewhat more 

 dilated, and there seems to be a greater difference 

 of size between the sexes, the male being pro- 

 portionally smaller. We cannot suppose it to be 

 the L. dimidiatus Fabr., although the general 

 tenor of the description corresponds very well, 

 inasmuch as he represents the antennae to be 

 flabellate, with elongated serratures, and the base 

 of the elytra to be rufous, whereas, the antennse 

 of this species are similar to those of the reticu- 

 latus. The black on the thorax of the female, 

 is reduced to a narrow line. 



The upper right figure of the plate. 



PLATE XXT. 



