THAXTER. — NEW LABOULBENIACE^E. 173 



tip of perithecium 275 p ; to insertion-cell 250 p ; greatest width 95 p. 

 Appendages, longest 235 fi. 



On Pericallus cceruleovire?is, Tat., Brit. Mus. No. 570, Singapore. On 

 margin of elytra. 



Laboulbenia drepanalis nov. sp. 



Perithecium smoky olive, the inner half or less usually much paler, 

 the upper three fourths free, falcate ; the inner margin concave, the tip 

 undifferentiated, the lip-edges forming a small hyaline rounded abruptly 

 distinguished papilla. Receptacle rather short, concolorous with peri- 

 thecium ; cell I paler or hyaline with a basal blackish suffusion ; cell V 

 large, growing upward above the oblique insertion cell which is thus 

 pushed out free from the perithecium together with the basal cells of the 

 appendages. Insertion-cell small, unmodified. Basal cells of the appen- 

 dages closely united, finally indistinguishable from one another, forming 

 a prominent rounded outgrowth which gives rise to about six or eight 

 branches, their dark basal septa of variable diameter only remaining, as a 

 rule ; the basal cells of the branches are distally inflated, and bear several 

 branchlets externally and terminally, the basal cells of the branchlets 

 mostly similar to those of the primary branches and similarly branched, 

 the ultimate branchlets closely septate, the septa dark. Perithecia, 

 Mexican specimens 100 X 40 (i, Amazon 140 x 35^. Total length to 

 tip of perithecium, Mexican 210 n, Amazon 275 <u ; to insertion-cell, 

 Mexican 130^, Amazon 140 p. 



On Gi/retes acutangulus, Sharp, Brit. Mus. No. 771 (Biologia Coll.), 

 Bugaba, Panama; on Gyretes sp., Brit. Mus. No. 477, Amazon. On 

 mid-elytron. 



Laboulbenia Egse nov. sp. 



Perithecium free or nearly so, slender, usually somewhat curved in- 

 ward, becoming evenly suffused with pale olive-brown, the broad tip not 

 differentiated from the body of the perithecium, the lip-cells more or less 

 suffused with darker brown. Receptacle pale yellowish, often elongate, 

 the basal cell short ; cell II several times as long, becoming amber-brown 

 with transverse striations ; cells III and VI about equal, elongate. In- 

 sertion-cell not deeply blackened. Outer appendage consisting of a 

 usually somewhat inflated basal cell with thick outer wall, bearing one or 

 two brauches placed close together antero-posteriorly, the branches simple 

 or once branched, subhyaline ; the inner appendage consisting of a basal 

 cell half as large as that of the outer, bearing usually a single simple or 



