334 



the anterior pair dusky or brownish, including several transparent whitish 

 spots, whereof seven, in two transverse rows, are oblong oval; nervures 

 margined with brown from the base to the fenestrated spots, entirely brown 

 from thence to the tip; hind wings with a minute brownish carpal spot. 



This is the largest native species that is known to me. It was taken in 

 Maine by Dr. John W. Randall. It resembles P. digitata, as figured by 

 Pictet. 



HEMIPTERA. 



Membracis ampelopsidis Harr. 



Thorax variegated with ferruginous bands, carinated, and with a folia- 

 ceous, subrhomboidal crest in the middle. Feet simijle. Body Avith large, 

 dense punctures; front pale greenish yellow, sprinkled with brown points; 

 thorax crested above, obtusely spined at its inferior angles, and acuminated 

 behind, reddish ash colored; a transverse, undulated, rich brown band be- 

 tween the anterior angles, but not attaining the anterior margin ; another 

 of the same color commencing at the anterior edge of the crest, undulated 

 backwards, extending up to the posterior angle of the crest, and passing 

 obliquely down the side to the margin of the thorax behind the middle. 

 A large, roundish, brown spot, sometimes obsolete, each side of the middle 

 of the cristal edge, and some smaller ones between and behind the bands. 

 Tips of the upper wings dusky, and with two fuscous spots. Abdomen yel- 

 lowish or greenish in the female, black in the male, the incisures pale. 

 Feet ferruginous, articulations pale. Dorsal crest rounded before, angu- 

 lated behind, the edge slightly sinuated. The colors of the male are darker, 

 and the bands are less distinct. Length ? about .40 in. ; 3 .35 in. 



It is found in all its forms upon the Cissus qulnquefoUa, from the middle to 

 end of June. Tlic above describes the colors of the insect while living. 

 When dead, after a time the general color is changed to a pale dirty 

 yellow, and the brown bands fade so much as not to appear of half their 

 true breadth. This species may possibly prove to be the ^[. trilineata Say; 

 but I cannot identify my specimens with his description. Vide Long. 

 Exped., App., p. 300. 



Tettigonia (lassus) ros99 Harr. 



Body yellowish white, hemelytra and wings white, hyaline. Eyes, claws, 

 and ovipositor brown. Length .18 in. 6 and 9 sub cop. June 15, 1846, 

 heads opposite, bodies in one line. 



Hind tibiaj angular, with an internal and external row of spines; fore 

 tibia pectinate, with a few spines within; intermediate unarmed. Ocelli 

 distant, inserted on the front, just below the anterior margin, between the 

 eyes and above the antenna?. Antennte in a little longitudinal furrow, the 



