166 PROCEEDINGS OF THE AMERICAN ACADEMY 



rather narrow, bent outwards, deep black, hyaline about the pore, 

 with brown shades more or less well marked below the tip and about 

 the lower half. Appendages two, the outer consisting of a large basal 

 cell, which may be continued directly to form a long simple straight 

 appendage distinctly constricted at the joints, or may bear two similar 

 branches. The inner basal cell bears one or two short branches, from 

 which arise small clusters of brownish antheridia, and rarely a more 

 elongate sterile branch. Receptacle rather slender, a more or less 

 well marked brown suffusion usually present in the distal portion. 

 Spores 45 X 4 (i. Perithecia, average 85 x 30 /*. Appendages, 

 longest 300 p. Total length to tip of perithecium, average 200- 

 220 M . 



On elytra of Olisthopus parmatus Say, Maine ; Stenolopkus lim- 

 balis Lee, Washington ; Badlster maculatus Lee, Texas ; Harpa- 

 lus pleuriticus Kirby, Massachusetts. A carabid near Stenolophus 

 Brazil. 



This form, although presenting no striking peculiarities of struc- 

 ture, seems sufficiently well defined to warrant its separation as a dis- 

 tinct species. It is nearly allied to L. Pterostichi, but differs in its 

 small size and more simple appendages. A form apparently identical 

 with it occurs on several species of Loxandrus from Florida and Texas. 

 The specimens on Badister are more or less evenly suffused with 

 brownish yellow, due perhaps to age and alcohol. 



Laboulbenia Pterostichi, nov. sp. 



Becoming more or less, often deeply, suffused with olive-brown. 

 Perithecium becoming deeply suffused, the outer margin commonly 

 straight, the apex rather coarse-lipped. Outer appendage consisting 

 of a large basal cell, above which it is usually three times successively 

 dichotomously branched, the ultimate branches long, straight, the 

 outer ones especially tinged with reddish brown. Inner appendage 

 consisting of a small basal cell giving rise to from one to three short 

 branches bearing one to several fertile branchlets, sometimes also to 

 one or more long sterile branches. Receptacle normal, usually elon- 

 gate. Spores 75-80 X 6.5 fx. Perithecium 130-160 X 48-55 ll. 

 Appendages (longest) 725 p, average 400-500 p. 



On Pterostichus adoxus Say, and P. luctuosus Dej., Maine; P. 

 mancus, Southern States. 



A form closely allied to L. elongata, from which some of its varieties 

 can hardly be distinguished. The usual absence of sterile branches in 

 the inner appendage and the character and branching of the outer 



