OF ARTS AND SCIKNCKS. 33 



G-rylliis Fabr. 



I. G. sequalis. — Hemelytra spotted with brown ; wings pale 

 yellowish at base, with a black band and dusky tip. 



Inhabits the United States. 



Head varied with brown and light gray ; thorax varied with 

 brown and dull rufous, with a carinate line ; hemelytra dark cin- 

 ereous, with numerous unequal small dark brown spots ; wings 

 sulphurous at base, then a black band arcuated behind so as 

 nearly to reach the inner angle ; tip dark cinereous, darker at the 

 angle, or with small fuscous spots on that part ; feet pale ciner- 

 eous, spotted with fuscous ; hind thighs within with four black 

 bands ; posterior tibiae sanguineous. 



lycngth to the tip of the hemel5^tra, one inch and two-fifths. 



Not an uncommon species. The thorax is not gradually 

 raised into a carina, but the line is abrupt and of little elevation. 



Our local form is constant in color and structure. It is, how- 

 ever, better described by later writers who have carefully sepa- 

 rated the numerous species classed under the genus Spharage- 

 mon. 



Spharagemon bolli appeared, from my collection, to be some- 

 what rare ; but I maj^ have been deceived in this, since it is not 

 always easy to distinguish S. bolli from S. collare in flight, the 

 color resemblance being quite marked. 



Scirtetica marmorata is a small, clean and handsome species, 

 and is fit companion to Psinidia fenestralis, with which it was 

 found. Mr. A. P. Morse, in his "Notes on the Acrididse of 

 New England,"; published in Psyche, says of S. marmorata: 

 "While usually recognizable by the markings of the tegmina, 

 this species is extremely variable in color, and widelj^ so in 

 markings, even in the same locality, some examples being chiefly 

 ashy, more or less maculate with black ; others chiefly blackish 

 fuscous, marked with white, yellowish or reddish brown ; others, 

 again, entirely bright rufous, sometimes of the tint of red hema- 

 tite. It is one of the handsomest of our locusts, but, next to 

 Hippiscus rugosus, is probably the least known of our CEdipod- 

 inae, since, though widely distributed, it is extremely local. * * 

 I have met with it in but three localities ; in each of these it is 

 common, and is found on sandy barrens but scantily clothed with 

 vegetation. My specimens were secured between the dates of 



