162 PEOCEEDINGS OF THE AMERICAN ACADEMY. 



On Homothis sp., St. George's Sound, Australia, Hope Coll., No. 309. 

 On elytra. 



Laboulbenia Brachionychi nov. sp. 



Perithecium wholly free, rather deeply suflfiised with smoky or reddish 

 brown, subclavate or almost symmetrically inflated, tapering from the 

 middle to the nearly symmetrical, or externally slightly oblique blunt 

 tip, the basal wall-cells contracted to form a long slender neck-like sub- 

 hyaline stalk. Receptacle abnormally developed, cells I and II nearly 

 equal, cells III and V forming a stalk which is deeply suffused with 

 blackish brown especially externally, and rather coarsely punctate in 

 the darker areas, of equal diameter throughout and quite free, except at 

 its very base, from the rest of the receptacle : cell IV larger than cell 

 III, cell V small and separated by an oblique septum ; cell VII and the 

 basal cells of the perithecium small. Outer appendage consisting of a 

 basal cell deeply blackened externally, and bearing a long slender simple 

 branch, distally hyaline, more or less suffused with smoky brown towards 

 the base : the inner appendage consisting of a basal cell about half as 

 long as that of the outer, producing a single branch on either side which 

 may be once or twice branched, the antheridia borne usually in twos or 

 threes on short branchlets near the base. Spore 110 X 7jM. Perithecia 

 exclusive of stalk, 270-340 X 65 ju ; including stalk 340-430 ^u. Total 

 length to tip of perithecium 650-800^; to insertion-cell 400-500^. 

 Stalk-like portion of receptacle 138 X 38 /<. Appendages 400-470 ju. 



On Brncldonychus sp., Nos. 99 and 822, Cochin China ; on Epis- 

 cosoma laticollis, No. 85, Cochin China; on Episcosoma sp., No. 86, 

 Java. All in Paris Coll. Usually on inferior surface of thorax. 



Laboulbenia Cafii nov. sp. 



Perithecium almost wholly free, pale amber-colored or straw-yellow, 

 transparent, stout, the tip blunt, with blackish basal suffusions, well dis- 

 tinguished, especially on the inner side. Receptacle short and stout, pale 

 amber-colored, normal in form. Insertion-cell broad, often not deeply 

 blackened. The appendages consisting of an outer and an inner series 

 of from four to six superposed cells which, through a twist of the insertion- 

 cell, become lateral instead of antero-posterior in position ; each cell of 

 these series produces externally a single simple short branch usually 

 three-celled, the two lower cells short and inflated, the upper longer 

 tapering to a blunt apex. Perithecia 140-165 X 60-70 /x. Total length 

 to tip of perithecium 310-350 /x, to insertion-cell about 170 /x. Append- 

 ages, longest 85 /x. 



