42 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Laboulbenia Helluomorphae nov. sp. 



Perithecium straight or slightly divergent, hyaline to yellowish, becom- 

 ing somewhat tinged with smoky brown ; the basal wall-cells forming a 

 scarcely apparent short stalk ; the blackish tip abruptly distinguished ; 

 the coarse translucent lip-edges outwardly oblique. Receptacle normal 

 hyaline to straw-yellow, distally obscurely punctate and slightly suffused 

 with faint brownish shades ; cells III, IV and VI subequal ; cell V rather 

 large, its inner margin more than one half free, nearly vertical, the thick 

 slightly oblique insertion-cell thus free above the base of the perithecium. 

 Outer appendage of the L. Galerltae type ; the basal cell large, more or 

 less suffused ; the two or three cells above it obliquely superposed, hya- 

 line ; all the cells bearing distally and externally single simple branches, 

 the basal part consisting of two cells, becoming clear brown, constricted 

 at the dark septa ; the distal part hyaline, or more faintly brownish, dis- 

 tinguished by a deep brown suffusion at the base : the inner appendage 

 consisting of a very small hyaline basal cell, giving rise on either side to 

 a very short branch, consisting of from one to two cells ; the basal one 

 bearing an antheridial branchlet, consisting of a single cell terminated by 

 a solitary abruptly brownish antheridium. Spores 70 X 7 /x. Perithecia 

 130-140x35-40^. Receptacle 220-180 /*. Appendages 185-300 /a. 

 Total length to tip of perithecium 2D0-325 p. 



On Helhiomorplia melanaria Reiche, Ega, Amazon ; British Museum, 

 No. 527. On Pleuracanthus brevicollis Dej., Surinam ; Berlin Museum, 

 No. 942. On the elytra. 



Laboulbenia humilis nov. sp. 



Rather slender, nearly uniform dirty olivaceous. Perithecia relatively 

 large, straight, erect, the outer margin nearly straight to the lips, or 

 slightly convex ; the tip not well distinguished, with darker shades below 

 the rather coarse, pale, outwardly oblique lips. Basal cell of the recep- 

 tacle relatively large, somewhat paler ; the cells above it darker, and 

 transversely, rather coarsely, striate-punctate ; cell III separated from 

 cell II by short horizontal septum ; cell VI separated from cells II and 

 III by oblique septa ; the anterior margin of the receptacle slightly con- 

 vex, the posterior strongly divergent above cell II. Insertion-cell rela- 

 tively narrow and thick, the outer appendage short, simple, tapering, 

 four to five-celled, slightly divergent above the basal cell, which is rather 

 long, irregular and paler ; the subbasal cell separated by a more or less 

 distinctly oblique septum, where the appendage is slightly geniculate ; the 



