402 PROCEEDINGS OP THE AMERICAN ACADEMY. 



nent. Appendage relatively rather slender, very long, sometimes extend- 

 ing nearly to the middle of the neck of. the perithecium, the stalk-cell 

 separated by a slight constriction from the basal cell, which is relatively 

 large, the annular thickening about the base on the inner side of its wall 

 unusually well developed, amber brown, bearing two antheridia; the sub- 

 basal cell almost as large, bearing two antheridia, the two successive cells 

 above it smaller and bearing each a single antheridium ; the series com- 

 pleted by a single terminal antheridium ; the antheridial necks rather 

 slender, and tapering, somewhat appressed. Receptacle short, stout, the 

 cells subequal. Spores about 28 X 3 ,u. Perithecium : venter 46-55 X 

 32-37 yu, ; neck 45-47 /x. Appendage 65-75//,, the stalk-cell 18 fx. Re- 

 ceptacle 55 /x. Total length to tip of perithecium 175 /a. 



On the superior surface near the tip of the abdomen of a muscid some- 

 what larger than the other hosts from Ralum, New Pomerauia. Berlin 

 Museum, No. 1287. 



Stigmatomyces dubius nov. sp. 



Amber brown with the exception of the receptacle and the stalk-cell 

 of the perithecium. Venter of the perithecium slightly inflated, rela- 

 tively small, not abruiJtly differentiated from the broad neck, which 

 gradually enlarges distally below the rather abruptly tapering, slightly 

 bent tip ; the middle of the three posterior projections from the lip-cells 

 larger and longer than the others and bent over so as to overlap the 

 anterior lip-cells, which are curved abruptly toward it ; the two lateral 

 posterior projections prominent beyond the base of the middle one, rather 

 slender, and slightly curved inward. Stalk-cell of the appendage distally 

 darker, abruptly prominent below the basal cell, which is small, squarish, 

 and deeper brown ; the rest of the appendage, which is unusually long, 

 apparently proliferous above the spiniferous cell, extending beyond the 

 venter of the perithecium, is made up of about eight cells, which bear 

 rather long antheridia in pairs, their necks appressed usually in a lateral 

 series. Receptacle relatively large, hyaline, the subbasal cell much 

 longer and broader than the basal cell, which tapers but slightly to the 

 small foot. Spores 30 x 3.5 /x. Perithecium : venter 58 X 40 ^ ; neck 

 110x25/x. Appendage 80-95 /x, stalk-cell 25-32 //,. Receptacle 145- 

 185 X 25-30 fi. Total 1 ;ngth 350-375 fx. 



On a fly with monstrously developed anterior legs resembling those of 

 Ochtheria mantis. Ralum, New Pomerania. Berlin Museum, No. 1281 

 and 1298. On the head and at the base of the posterior legs. 



