1878.] 63 [Scudder. 
General Meeting. November 6, 1878. 
The President, Mr. T. T. Bouvé, in the chair. Twenty-two 
persons present. 
In the absence of a quorum, the election of members was 
postponed. 
The President briefly described the formation of “ pot- 
holes” and introduced Mr. M. P. Kennard, who gave an ac- 
count of the remarkable examples of this kind at Lucerne, 
Switzerland. These are among the largest pot-holes in the 
world, one measuring, according to the guide books, twenty- 
seven feet in diameter and eighteen feet in depth, the 
boulders at the bottom weighing many tons, and made of 
eranite which is found in place, about fifty miles distant. 
Mr. Kennard showed and presented to the Society a mono- 
chrome picture of this group of pot-holes. 
The thanks of the meeting was voted to Mr. Kennard for 
the communication and picture. 
The following papers were read : 
A CENTURY OF ORTHOPTERA. Decape VIII. — Acripiu (Mr- 
LANOPLUS). By Samuex H. ScuppeEr. 
71. Melanoplus tenebrosus. Of medium size. Head not 
elevated, moderately arched; eyes moderately prominent; vertex 
between the eyes about as broad as the leneth of the first antennal 
joint, the foveola rather shallow, but with distinct blunt bounding 
walls, which have a subovate outline; frontal ridge slichtly com- 
pressed above, sulcate at the ocellus and below, laterally punctulate 
above. Pronotum pretty uniform, scarcely expanding on the poste- 
rior lobe, which is only slightly separated from the anterior lobe, the 
_former obscurely punctate; median carina slicht, distinct only at the 
extreme front and on the posterior lobe; lateral carine tolerably 
distinct; transverse sulci of anterior lobe slight, the anterior scarcely 
cutting the median carina. Tegmina a little longer than the body. 
Terminal ventral segment of ¢ abdomen scoop-shaped, subquadrate 
