THAXTER. — NEW LABOULBENIACEAE. 813 



Stigmatomyces pauperculus nov. sp. 



Short and stout, dark amber-brown, except the hyaline receptacle, and 

 the autheridial portion of the appendage. Venter of perithecium short, 

 stout, inflated ; more or less distinctly granular, abruptly distinguished 

 from the neck, which is slightly inflated above the middle, distally curved, 

 and slightly tapering ; the apex somewhat asymmetrical and blunt, the 

 lip-cells forming incouspicuous papillae. Receptacle hyaline, rather 

 short, the cells subequal, abruptly distinguished from the parts above. 

 Stalk-cell of the appendage short and prominent, separated from the 

 darker basal cell by an abrupt constriction ; the rest of the appendage 

 very broad, short, h3 r aline, curved inward ; consisting of three superposed 

 cells and the terminal antheridium, the total number of antheridia eight 

 (possibly nine), scarcely more than their small necks free. Total length 

 to tip of perithecium 165-175 /x. Venter of perithecium 40-45x35- 

 38 fj., the neck 50 X 16/x. Appendage, including basal cell (16-20^), 

 58-65 X 15 fi. Spores 32 X 3 //. 



On legs of a small dark fly with white inferior abdomen, Ralum, New 

 Pomerania; Berlin Museum, No. 1291. 



Stigmatomyces Sarcophagae nov. sp. 



Normally long and slender. Color nearly uniform dull amber-brown, 

 except the hyaline receptacle and the appendage above its basal cell. 

 Venter of perithecium minutely transversely granular-striate, rather 

 narrow, straight, the wall-cells prominent and slightly spiral; the neck 

 rather abruptly distinguished, the cells more or less spirally disposed, a 

 lather distinct subterminal enlargement, above which the subconical tip 

 ends in a bluut slightly oblique apex, the paired posterior lip-cells slightly 

 prominent; the basal cells small, somewhat prominent; the stalk-cell 

 relatively large. " The receptacle normally very elongate, hyaline, nearly 

 isodiametric ; the subbasal cell much longer than the basal. The ap- 

 pendage long, slender, recurved ; its stalk-cell about two or three times 

 as long as broad ; the basal cell more than twice as long as broad, the 

 portion above it consisting of five superposed cells, and a terminal 

 antheridium ; the total number of antheridia normally nine. Spores 

 about 35 X 4: fj.. Venter of perithecium 75-90 X 35-42 p, the neck 150 

 X 18-22 fx. Appendage, to edge of curvature, 110^, the stalk-cell about 

 35 u, the basal cell 18-20^. Receptacle 200-325 X 30 ft. Total length 

 of larger individuals 600 «. 



Growing in tufts on the abdomen of Sarcophaga sp., Island of Marga- 

 rita, Venezuela; Dr. A. F. Blakeslee. 



