28 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Laboulbenia idiostoma nov. sp. 



Receptacle evenly suffused with olive-brown, somewhat darker 

 distally, short and compact, relatively small; cell I slightly larger 

 than cell II and nearly triangular, or symmetrically pointed distally 

 between cells III and VI; cells III and IV subequal, the latter forming 

 a rounded prominence distally, which turns the insertion-cell so that it 

 is very oblique, or even vertical, in position, the appendages being 

 thus turned so that they cross the base of the perithecium obliquely, 

 or at right angles; cell VI rounded and prominent, the basal cells of 

 the perithecium also small and bulging, especially externally. Peri- 

 thecium relatively large, long, straight or but slightly curved, often 

 somewhat broader distally, rich purplish brown, almost opaque, free; 

 the tip abruptly attenuated, indented externally, and hyaline distally, 

 the apex prominently bilobed, the lobes rounded and symmetrical 

 when viewed anteriorly or posteriorly. Appendages relatively long, 

 straight or symmetrically curved; the outer appendage simple, its 

 basal cell large, externally convex, its distal septum broad and black- 

 ened; the basal cell of the inner appendage half as large; a group of 

 antheridial and sterile branchlets arising on either side, which may be 

 branched near the base so as to form a tuft in which about six of the 

 branchlets are apt to be sterile and project across the base of the 

 perithecium; all the sterile branchlets subcylindrical, rigid, rather 

 remotely septate, sometimes furcate near the blunt tip ; the antheridia 

 relatively large and long, with a narrower base below the rounded 

 venter, usually in pairs, and sometimes on long branchlets. Peri- 

 thecia, average, 122 X 30-35 m- Receptacle 70-85 X 35-42 /x- Ap- 

 pendages, longest, 200 ix. Total length to tip of perithecium, average 

 175 M- 



On antennae of Haltica Jamaicensis Fab. Ennery, Hayti (Mann), 

 No. 2491. 



A very distinct species observed only on the antennae of its host. 

 The peculiar tip of its perithecium is not unlike that of L. leptostoma 

 Speg. 



Laboulbenia fuliginosa nov. sp. 



Receptacle and appendages dirty yellow olive-brown; the former 

 of normal form and structure, more deeply suffused with age; cells IV 

 and V often subequal ; cell III slightly larger than cell VI ; cells I and 

 II of nearly equal length; the whole tapering more or less regularly to 



