30 PROCEEDINGS OF THE AMERICAN ACADEMY. 



of about fifteen or more cells, the series distally concave, rising abruptly 

 upward on either side above the base of the perithecium and bearing the 

 usual appendages. Perithecium solitary at the right of the median 

 (primary) appendage, almost symmetrically inflated from base to apex, 

 dull purplish ; the tip slightly darker, hardly distinguished ; the apex 

 truncate, sometimes slightly spreading; the lip-cells hardly projecting. 

 Perithecia 115-150x34-42^. Receptacle 200 X 65-70 p. Total 

 length to tip of perithecium 310-360 /x. 



On the abdomen of Xanthopyyus Solskyi Sharp. Sharp Collection, No. 

 1158. Nearly allied to P. Amazonica, from which it differs principally 

 in the form of the perithecium. 



Chitonomyces occultus nov. sp. 



Short and stout, becoming suffused with somewhat smoky amber 

 brown. Lower portion of the receptacle deeper brown, the basal cell 

 relatively large, broad distally ; the subbasal cell broad and flattened ; 

 the lower cell of the distal portion rather large and but slightly over- 

 lapped by the subterminal cell, which may bulge slightly below the 

 terminal cell, the latter being thus turned so as slightly to overlap the 

 perithecium. Perithecium short and stout, its upper third or less free, 

 darker brownish externally ; the tip bent outward, tapering rather 

 abruptly to the slightly irregular apex, its outer half or less suffused 

 with dark brown. Spores about 22 X 2.5 xi. Perithecium 60 X 20 xi. 

 Receptacle to tip of distal cell 90 /x. Total length to tip of perithecium 



100 ft. 



In the median marginal depression of the right elytron of Onemidotus 

 sp. Lake Eustis, Florida. 



Chitonomyces psittacopsis nov. sp. 



Nearly hyaline. Receptacle rather slender, the basal cell several times 

 as long as the squarish subbasal cell ; the cell above the latter nearly 

 equalling it in size and separated by an oblique septum from the lowest 

 of the marginal cells, which are all subequal ; the terminal appendiculate 

 cell of the usual form, relatively large and long, without any distinct 

 basal enlargement; the tip of the lower appendiculate cell curved slightly 

 outward. Perithecium relatively very large, long, slender, usually 

 curved sidewise throughout, the upper half tapering very slightly to the 

 curiously modified, clear black contrasting tip, which resembles the 

 partly open beak of a parrot ; a larger upper recurved mandible-like pro- 



