OF ART3 AND SCIENCES. 13 



outer side, two larger cells, which separate it from the cellular base 

 from which the pseudoparaphyses arise ; the upper of these two cells 

 divided by a curved partitiou wall, which cuts off its upper inner cor- 

 ner. Spores fusiform, septate near one extremity, involved in mucus, 

 55-60 fx X 0-0.0 [X. Perithecia 120-130 /x, X 50-75 jx. Pseudo- 

 paraphyses (longer) 75-230 /x. Length to tip of perithecium 250- 

 300 /x. Greatest width 75-100 /A. 



On Platynus cincticollis. Connecticut. 



A small species occurring almost invariably at the apex of the elytra, 

 rarely on the abdomen of its host. It is nearly related to L. luxurians, 

 from which it is readily distinguished by its long, straight pseudo- 

 paraphyses. 



Laboulbenia Harpali nov. sp. 



Hyaline or very slightly straw-colored. Perithecia long-ovoid, 

 sometimes tinged with brown, the apex (in mature specimens) black, 

 except about the pore ; longitudinal axis nearly parallel with that of 

 the receptacle. Pseudoparaphyses hyaline, arising from a black basal 

 disk placed opposite the middle of the perithecium ; two in number, 

 their basal cells connected ; the outer irregularly once or twice dichoto- 

 mously branched ; the inner usually consisting of two short; branches 

 arising directly from the inner basal cell. Receptacle, slender ; con- 

 sisting of two large stem cells (basal and supra-basal), and above 

 them on the inner side a subspherical cell is separated from the peri- 

 thecium by three very small cells. On the outer side the two cells 

 below the pseudoparaphyses are present, the upper having the usual 

 oblique partition in its upper inner angle. Spores fusiform, septate 

 near one extremity, involved in mucus, 60-68 /x X 5-5.5 /x. Length 

 to tip of perithecium 290 /a (215-300 /x). Length of outer pseudo- 

 paraphyses 200-300 /x; of inner 100-130 /x. Perithecia 90 X 40 fx. 



On Harpalus Pcnnsylvanicus. Connecticut; Maine (Kittery). 



This species occurs upon the inferior surface of its host, always on 

 the left side of the anterior, inferior face of the abdomen, sometimes 

 extending across to the adjacent portion of the thorax. It is not un- 

 common, and occurs frequently in company with the succeeding species, 

 never mixed with it, however. 



Laboulbenia elegans nov. sp. 



Hyaline. Perithecia ovoid; the longitudinal axis at an angle of 

 about 40° to that of the receptacle ; apex jet-black (only in mature 

 specimens), except around the pore. Pseudoparaphyses arising from 



