TilAXTER. MON()( J HA I'll OP THE LA I!( ) I LHK\ I A( ' K.E. 



377 



except a series of deep brown short tubercular transverse ridges on one side of cell IV, and the basal 

 cells of the peritheciuin which are deep brown, the rest subhyaline, cell IV bulging. Outer appendage 

 simple, slender, the basal cell sometimes long and somewhat inflated: the inner appendage consisting 

 of a small basal cell with a short branch on either side. Perithecia about 140 X 50 ji. Total Length 

 to tip of perithecium, average .'HO ft; to insertion-cell, average 225 \i; greatest width 00 /«. Appendages 

 225 n (longest). 



On Serrimargo guttiger Schaum., Brit. Mus. No. 558, Penang, East Indies. On base of elytra. 



This species is closely allied to L. leueophcea and L. comigata, being the least characteristic of the 

 three. It is distinguished from L. leucopltwa, which it most nearly resembles in the relation of its peri- 

 thecium to the receptacle. The short basal cell of the latter, the punctation of the subbasal cell in 

 connection with its suffusion, and in the very differently shaped perithecia! tip, which is without any 

 finger-like projections. 



Laboulbenia leucoph.ea Thaxter. Plate LX, figs. 9-11. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 183. Dec, 1899. 



Perithecium dark brown, almost opaque, rather small, hardly more than the tip free from the recep- 

 tacle; the tip relatively large and long, bent slightly outward, not abruptly differentiated, black except 

 around the pore, the right inner lip forming a hyaline nearly median blunt outgrowth which is bent slightly 

 outward. Receptacle sometimes twisted at the distal end of and above cell II; cell I hyaline; cell II 

 suffused with brown, in some cases with deeper brown transverse elevations on one side; the lower half 

 of cell III and cell VI hyaline, the rest of the receptacle concolorous with the perithecium. The outer 

 appendage simple, its basal cell four or more times as long as broad, curved toward the perithecium ; the 

 basal cell of the inner appendage very small, bearing in general a single short branch, both appendages 

 pale yellowish. Perithecium to tip of outgrowth 130-150 X 35-40 p.. Total length to tip of perithe- 

 cium 325-375 /*; to insertion-cell 250-290 /x; greatest width 55-65 /£. Appendages about 200 ft. 



On mid-elytron and base of legs of Serrimargo guttiger Schaum., Hope Collection, No. 300, .Sumatra. 



This species is closely allied to L. corrugafa and L. tuberculijera, but differs from both in the rela- 

 tion of its perithecium to the receptacle, and the conformation of the tip. Of two original preparations 

 one has unfortunately been destroyed, so that the species is represented by two individuals only. 



Laboulbenia corrugata Thaxter. Plate LX, figs. 6-8. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 108. Dec, 1899. 



Perithecium rather small, irregular, free from the receptacle excepted the base, blackish brown, 

 darker and almost opaque below, a rounded distal elevation extending completely around the perithe- 

 cium, broader externally, forming a nearly opaque broad collar, above which the tip is very abruptly 

 distinguished; the latter subhyaline basally, a dark median external and internal suffusion, the lips 

 translucent, faintly brownish, the two outer rounded and curved inward between the two inner, which 

 form two free slightly unequal divergent blunt-pointed projections. Receptacle rather long and slender, 

 pale brownish yellow with deeper brown suffusions about the distal region of cell I and the basal region 

 of cell II; the basal cells of the perithecium opaque and cell IV and V more deeply suffused; a scries of 

 prominent blackish brown tuberculate ridges extend more than half way across the receptacle from the 

 anterior margin, beginning below the insertion-cell and extend as far as the base of cell II, cell IV bulging 

 distally outside the thick rather narrow insertion-cell. Outer appendage simple, erect, tapering, yel- 

 lowish; inner appendage consisting of a smaller basal cell with a similar and shorter branch on either 

 side. Perithecia 120 X 37-40 /(. Total length to tip of perithecium 340 ft; to insertion-cell 200 fi; great- 

 est width 60 /t. Appendages 1S5 fi. 



On base of the elytron of Serrimargo guttiger Schaum., Hope Collection, No. 300, Sarawak, Borneo. 



This species, although closely allied to L. tuberculijera and L. leueophcea, is readily distinguished 

 from either by the peculiar conformation of the distal portion of the body of its perithecium, as well as 



