CONTRIBUTIONS FROM THE CRYPTOGAMIC LABORATORY OF 

 HARVARD UNIVERSITY. No. LXXXI. 



EXTRA-AMERICAN DIPTEROPHILOUS LABOULBENIALES. 



By Roland Thaxter. 



Received, February 14, 1918. Presented April 8, 1918. 



In a recent Contribution (These Proceedings, 52, No. 10) the 

 writer inckided such American Laboulbeniales as were then known 

 to be parasitic on dipterous insects. In the present paper all the 

 extra-American forms which have accumulated in recent years have 

 been included save only a few which, owing to their condition, or the 

 scantiness of the available material it has seemed best to omit. In 

 order to complete the enumeration of all the species of Stigmatomyces 

 which have thus far come under my notice one coleopterophilous 

 type has been added, a parasite on the coccinellid genus Chilomanes; 

 but with this exception only dipterous hosts have been included. 

 As in previous instances I am indebted to the kindness of ]Mr. Schwab 

 and Mr. Moulton for the hosts from Kamerun and from Borneo, and 

 several very interesting forms were found among a small number of 

 flies which I owe to the courtesy of Dr. S. B. Wolbach, who brought 

 them from the Gambia River. I am indebted to Dr. P. Speiser for 

 certain interesting specimens and determinations. It has proved 

 impossible to obtain specific and in some cases even generic determina- 

 tions, especially of the peculiar African hosts. For assistance in this 

 connection I am indebted to Prof. Aldrich and to Mr. Banks. The 

 terminology used in the present paper is that of my previous Contribu- 

 tion above cited. 



Index of Genera and Species. 



Page. Page. 



Ceraiomyces . . 702-70.3, 707-709 pedalis 699, 701 



Ceraiomyces Dahlii 706 rhizophorus 701 



Dimeromyces Il\i:heomyces 



coarctatus 699, 700 anomalus 718 



Kamerunensis 700 elegans 717 



Oscinosomalis .... 699, 701 falcatus 714 



