EXTRA-AMERICAN LABOULBENIALES. ' 735 



basal cell region; the neck stout and slightly tapering, its spreading 

 base rather clearly distinguished by a slight subtending elevation; 

 the apex not distinguished, strongly oblique distally, or, when viewed 

 radially, abruptly truncate, broad and bipapillate, the papillae closely 

 associated and median. Spores 20 X 3.5 ix. Perithecia 88-100 X 

 32 n, largest 120 X 35 /x. Receptacle 42-75 X 12-14 fx, largest 130 X 

 14 Id. Appendage about 35 fx. Total length 150-200 (x, longest 275 ix. 



On a species of Limosina, the larger on the thorax, the smaller on 

 the legs. Nos. 2130, 2134, and 2135, Sarawak, Borneo. 



This pale and otherwise nondescript form is most clearly distin- 

 guished by the irregular curvature and divergence of the long antheri- 

 dial necks, which sometimes recall the appearance of the projecting 

 fingers of the conventional scarecrow. It is evidently related to the 

 simpler forms which occur on other borborids. 



Stimatomyces Venezuelae Thaxter. 



A form corresponding in all respects to the type, has been obtained 

 from flies belonging to the genus Limosina, or to one very closely 

 allied, growing on the abdomen; No. 2674, Kamerun, West Africa, 

 and No. 2179, Sarawak, Borneo. As in the type material, the append- 

 age appears to be somewhat e\anescent, consisting of three well 

 defined cells, the basal brownish yellow and somewhat broader than 

 long. The basal as well as the subbasal cell, which is strongly con^'ex 

 externally, appear to bear two antheridia, as well as the third, but 

 since the antheridia are turned sidewise and none of the specimens 

 are young, it has been impossible to determine this point with cer- 

 tainty. The fourth cell appears to bear a single antheridium, and to 

 be followed by two others which are terminal and superposed. The 

 peculiar form of the ^'enter and receptacle is exactly that of the 

 Venezuela specimens. 



On Diopsidae. 



Stigmatomyces arcuatus nov. sp. 



Rather evenly arcuate, the general curvature sidewise to the right, 

 the curvature at the extremities usually somewhat more abrupt: 

 uniformly suffused with yellowish; the perithecium and appendage 



