NEW INDO-MALAYAN LABOULBENIALES. 23 



with a stouter receptacle, the outUne of the perithecium being more 

 conspicuously corrugaterl and the tip broader, somewhat asymmetrical 

 and slightly bent distally. The more common type on the abdomen 

 differs at maturity in possessing a usually more slender receptacle, 

 which may be very greatly elongated, the appendage projecting at 

 right angles to the main axis and roughly triangular in outline; the 

 rows of antheridial cells vertical, or even oblique outward; the sterile 

 cells decreasing rapidly in size to the tip: the perithecium having a 

 less prominently corrugated outline, and the tip longer, more abruptly 

 distinguished, nearly isodiametric, slender, with a symmetrically 

 rounded apex. A third variation which occurs on the inferior surface 

 of the thorax and adjacent parts of the abdomen and legs, is usually 

 smaller and stouter; the appendage becoming very soon disorganized 

 and remaining as a yellowish mass beside the base of the perithecivmi. 

 The latter is less characteristic in form; the tip not well distinguished 

 and stout, the outline hardly corrugated. Although the association 

 of characters in these three \'ariations is more or less constant, and the 

 extremes might readily be separated as distinct species, intermediate 

 conditions are sufficiently numerous to make the series more or less 

 continuous. 



This species is by far the most alnuidant of those described, and 

 from its large size and conspicuous black foot, is readily seen even with 

 the naked eye. A species very closely allied, and perhaps identical, 

 has also been examined from African Gryllotalpac. 



Tettigomyces pterophilus nov. sp. 



Nearly colorless. Receptacle slender, variably elongated, more or 

 less uniform above the basal region which may be slightly narrower, 

 straight, curved, or somewhat sinuous, the cells slightly prominent 

 and separated by more or less distinct constrictions at the septa. 

 Appendage, which is assumed to arise opposite the base of the upper- 

 most perithecium, not distinguished from the receptacle, slender, 

 elongate, curved outward, tapering to a sterile termination; bearing 

 at irregular intervals from its inner side, single scattered branches of 

 variable number, simple or usually not more than once branched, and 

 resembling the termination of the appendage. Perithecia one to four, 

 or even five, superposed and arising at variable intervals from the 

 receptacle, the axial trichogyne more or less persistent and associated 

 with a small appendage just above it, the l>asal cell of which appears 



