370 



PSYCHE. 



[June .899. 



the last dorsal segment, separated by a third 

 of the width of the supra-anal plate and 

 entirely outside of the sub-median ridges ; 

 cerci moderately broad and very heavy, their 

 thickness equalling the middle width, gently 

 tapering at the base, the apical two-thirds 

 about equal and two-thirds the width of the 

 base bent a little downward and scarcely 

 perceptibly inward, the outer face sulcate 

 apically, the extremity rounded above and 

 angulate below, exceeding the supra-anal 

 plate and falling short of the apex of the 

 abdomen by a little more than their basal 

 width, the length being three and a half 

 times their width at the base. Subgenital 

 plate about as long as broad, with the lateral 

 margins sinuate and the apex much elevated. 



Length of body, male, zz mm. ; female, 25 

 m m . 



I^ength of tegmina, male, 10 mm. ; female, 

 II mm. 



Length of posterior femora, male, 11 mm.; 

 female, \i\ mm. 



Three males, sixteen females all taken 

 with the exception of a single female 

 near the War Eagle ford between 

 Spring Valley and Clifty in Carroll 

 county, June twenty-sixth. The female 

 referred to was taken a few days later 

 near the same locality. All were 

 captured in woods. This species falls 

 in the Tcxana group of the genus near 

 those species of the group that have the 

 tegmina attingent and the subgenital 

 plate of the male elevated apically but 

 without a tubercle. It is readily sepa- 

 rated from Mel. Icpidus Scudd. by the red 

 hind tibiae, the much longer overlapping 

 tegmina, the larger size, lighter color, 

 absence of fascia on the disk of the 

 hind femora, and the longer and dif- 

 ferently shaped cerci. It is readily 



separated from AM. tcxaiius Scudd. by 

 the unequal median carina of the 

 pronotum, the nearly quadrate prozone 

 of the male, the much longer tegmina 

 and shorter hind femora, the widely 

 separated and differently shaped furcula 

 and the longer straighter and differently 

 shaped cerci. Finally it is quite dis- 

 tinct from Mel. blatchkyi Scudd. in its 

 shorter antennae and hind femora, in 

 the quadrate prozone, the much longer 

 tegmina, the absence of fascia on the 

 disk of the hind femora, the absence 

 of the fuscous base and pallid annulus of 

 the hind tibiae, the much more distant 

 furcula, the longer, heavier, straighter 

 and differently shaped cerci, the longer 

 supra-anal plate with its percurrent 

 median sulcus. It is most nearly 

 related in the structure of the prono- 

 tum, the furcula and the cerci to Mel. 

 lepidus Scudd. from which it may not 

 be distinct, but the obvious differences 

 of tegmina and hind tibiae in addition 

 to other points indicated in the descrip- 

 tion and the widely different habitat 

 compel me to consider it specifically 

 distinct. Named in honor of Mr. 

 William Bacon to whose zeal as a col- 

 lector I owe many of the Arkansas 

 specimens in my collection. 



Melanoplus scudde?-! Thos. — This is 

 a common wood species in Arkansas in 

 the extreme northwestern part of the 

 State and in the east-central part. It 

 does not occur in collections made in 

 Boone, Carroll, Marion, Newton and 

 Madison counties. The earliest date 

 for its capture is September first and 



