174 PROCEEDINGS OP THE AMERICAN ACADEMY 



Laboulbenia cristata, nov. sp. 



More or less suffused with brown. Perithecium curved outwards, 

 evenly often deeply suffused with brown, tapering to the neck-like 

 apex, its prominent lips turned outwards, the base of the inner lip 

 more deeply suffused. Appendages two, the outer consisting of a 

 large squarish cell surmounted by a sub-basal cell which bears on its 

 upper flattened surface a series of from three to six large straight 

 simple septate dark brown branches set side by side in a single row run- 

 ning from within outwards, the inner very long, the outermost basally 

 deeply blackened and contracted, curved strongly outwards, its hyaline 

 distal portion commonly broken off. The inner basal cell very small, 

 producing usually two short branches bearing groups of large long- 

 necked antheridia. Trichogyne large, branched and septate, the ulti- 

 mate branches straight and tapering. Receptacle short, stout, hyaline 

 becoming tinged with yellowish brown. Cell (1) small, cell (2) very 

 large, all very thick-walled. Spores 50-55 X 4-4.5 p.. Perithecia 

 110-130 X 37-45 fx. Appendages (outer not including two basal 

 cells) 90-480 /x, basal cells 35 fi. Total length to tip of perithecium 

 250-280 IX. 



On elytra, abdomen, and legs of Pcederus Uttorarius Grav. and 

 P. obliteratus Lee, Maine ; Pcederus sp. ? Mexico and Nicaragua ; 

 Pcederus rujicollis Fabr., Austria. 



A species not to be confused with any other, owing to the crest-like 

 outer appendage, which, however, varies considerably in the number 

 of its branches. This is perhaps the form referred to by Rouget as 

 occurring on Pcederus in France, and confused by him with L. 

 Bougetii Robin. 



Laboulbenia Philonthi, nov. sp. 



Perithecium rather narrow, subconical, slightly inflated at the base, 

 blackened along the margin below the hyaline lips which are turned 

 slightly outwards. Appendages consisting of two basal cells, includ- 

 ing, between and below them, a small triangular cell : the outer ap- 

 pendage simple or rarely once branched, its sub-basal cell commonly 

 inflated with blackened septa. The inner basal cell gives rise to 

 numerous branches which are straight, simple, or once to twice 

 branched, the branchlets straight divaricate, hyaline, tapering to a 

 blunt tip hardly exceeding the perithecium, their basal cells often more 

 or less inflated, brownish with blackened septa. Insertion cell opposite 

 the base of the perithecium. Receptacle usually short. Spores 52 



