188 PROCEEDINGS OF THE AMERICAN ACADEMY. 



elevation ; the tip very broad, short, almost flat-topped, the outer angle 

 almost a right angle, the inner rounded. Receptacle consisting of a basal 

 cell which is nearly hyaline, above which cells II, III, and VI form an 

 almost transverse row ; cell II median, triangular, lying between the 

 other two, the receptacle abruptly expanded in this region; cells III and 

 IV small and flattened; cell V hardly distinguishable. Insertion-cell 

 and basal cells of the appendages nearly opaque and indistinguishable 

 from one another, the outer basal cell apparently producing two branches 

 antero-posteriorly ; the inner a branch on either side, all the branches 

 (broken) brown, stiflf, erect or slightly divergent. Perithecium 185 X 

 6C /x. Total length to tip of perithecium 295 /x ; to insertion-cell 90 /x; 

 greatest width 65 ft. 



On Serrimargo guttiger Schaura., Brit. Mus. No. 560, Penang, East 

 Indies. At base of posterior legs. 



Laboulbenia minimalis nov. sp. 



Perithecium free, becoming olivaceous brown, mostly straight, the 

 basal wall-cells forming a very short stalk, the tip rather abruptly distin- 

 guished, mostly straight symmetrical black, distally hyaline. Receptacle 

 olivaceous yellow with brown suffusions ; cell I slightly suffused with 

 brown, somewhat longer than cell II, both rather narrow ; the receptacle 

 expanding rather abruptly above cell II ; cells III, IV, and V nearly 

 equal becoming rather deeply suffused with brown. Insertion-cell broad, 

 blackened. Outer appendage consisting of a large triangular basal cell 

 becoming deep blacrfsh brown, above which four to six small nearly 

 hyaline cells obliquely superposed, or with their long axes nearly vertical, 

 form a series which runs obliquely toward the perithecium, each cell pro- 

 ducing externally a single branch ; the branches either simple and mostly 

 three-celfed or branched above their basal cells ; the branchlets two in 

 number, mostly four-celled, their basal and terminal cells very small, all 

 the septa somewhat dark, slightly constricted : the inner appendage con- 

 sisting: of a basal cell bearing on either side a short series of cells like 

 that of the outer appendage and similarly branched, except that the three 

 or four lower branches consist of a single cell bearing terminally a pair 

 of rather stout long-necked antheridia ; the three series closely apposed 

 or united. Perithecia 100 X 30^. Total length to tip of perithecium 

 200-235 /x ; to insertion-cell 110 yu.; greatest width 45 yu,. Appendages 

 60-75 f,. 



On Galerita sp., Paris Museum, No. 74, Venezuela. On mid-elytron. 



