No. 30.] 61 
Brecu-rree Aruysanus, *4. fagi. Elytra fuscous, immaculate ; 
seutel, face and pectus black; venter and legs light 
yellow. Length, 0:18. Taken on beech trees. No. 796, 
female. 
Buacx-nosep Aruysanvs, *./. nigrinasi. Pale yellow, lower part 
of the face black or fuscous. Length, 0°18. Common, 
particularly upon the hornbeam, (Carpinus americana.) 
Presents many varieties. No. 797, female. 
AMBLYCEPHALUS, Curtis. 
Curris’s Amatycernatus, */. curtisii. . Greenish yellow ; two 
dots on the vertex, band on fore part of the thorax, and 
six vittee on each elytron, black; beneath black. Length 
0-15. Common particularly on the grass of meadows. 
No. 798, male ; 799, female. 
Say’s AmpiycepHatus, “4. sayii. Pale yellowish, without dots ; 
elytral cells partially margined with fuscous or black, 
nerves white. Length 0-13. Abundant on grass in pas- 
tures and meadows. No. 800, male; 801, female. 
Var. a. A black spot on the base of the thorax. 
No. 802. 
b. Three black spots on the base of the thorax. 
No. 803. 
c. Only the apical cells margined with fuscous 
at their tips. No. 804. 
Metsueimer’s AmpiycepHatus, “4. melsheimerit. Pallid, base 
of the tergum black; elytra pellucid, nerves white. 
Length 0:10. Common on grass. No. 805, male; 806, 
female. 
Inimican Ampiycepuatus, 1.? inimicus, (Say.) Jour. Acad. Nat. 
Sci., vi. 305. Though this much resembles the species 
named Sayii, above, it differs from this genus by the 
length of its elytra, and from Jassus by its striated front 
and the number of its discoidal and apical cells. It 
probably forms the type of a separate genus. Common 
on grass, and its larva has been said to depredate upon 
the roots of young wheat. No. 807, male; 808, female. 
Var. a. Nerves white, cells margined with fuscous. 
No. 809. 
