THAXTER. — MONOGRAPH OF TIIK I.AI'.nl I.H!.\I\< ' I . 



375 



producing distally from its inner side a simple hyaline abruptly erect branch, the terminal one bearing 

 two such branches distally. Basal cell of the inner appendage half as large as that of the outer, hearing 

 on each side a branch which bears one or more branchlets and, bending across I lie outer appendage, 

 is often characteristically recurved beyond it. Spores 58 X 5 p. IVrithecia 100 125 X 40-50 p. Re- 

 ceptacle 275-300 /<. Appendages 185 p. Total length to tip of perithecium 300 135 fi. 



On the right inferior prothorax of Mrgalongcli n.s pafrolrioidrs, Chincoxo, E. Africa; Berlin Museum, 

 No. 1037; on M. Angolensis Harold, No. 1039. 



A species well distinguished in all its characters and not closely related to any other. The material 

 on M. Angolensis is all immature, but undoubtedly belongs to this species. 



Laboulbenia obmquata Thaxter. Plate LVIII, fig. 3. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 48. June, 1902. 



Color pale amber-yellow. Perithecium almost wholly free, distally bent abruptly outward or almost 

 recurved; the base slightly inflated; tapering somewhat, distally, to the apex; the tip hardly distinguished, 

 irregularly bent or twisted; the asymmetrical lip-cells forming irregular projections, the two inner sub- 

 tended by unequal dark patches. Subbasal cell of the receptacle somewhat longer than the basal, nearly 

 as broad as the distal portion of the receptacle; cells III and VI subequal; cell IV subtriangular; cell 

 V broad and short, carrying the thick contrasting black insertion-cell out free from the perithecium. 

 Outer appendage simple (or distally branched?), slightly divergent; the basal cell somewhat inflated, 

 abruptly broader than the subbasal cell, its basal third or more obliquely involved by the opacity of the 

 insertion cell: the basal cell of the inner appendage similar to that of the outer, without suffusion, bearing 

 a short branch on either side, each of which may bear several branchlets. Spores 45 X 3.5 p. Perithe- 

 cia 165-170 X 40 p. Receptacle 185-200 X 45 p. Total length to tip of perithecium 325-360 p. 



On elytra of Coptodera gagatina Dej., Brazil; Berlin Museum No. 978. 



This species is distinguished by the abrupt curvature of its perithecium, the peculiar modification of 

 the tip of the latter, and the oblique black suffusion of the basal cell of the outer appendage, which is 

 continuous with the opacity of the insertion-cell, and contrasts strongly with the otherwise general pale 

 yellowish color. It appears to be more nearly allied to the group of forms on Pericalhis and allied hosts 

 of the East Indies. 



Laboulbenia tenuis Thaxter. Plate LX, figs. 24—26. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 204. Dec, 1899. 



Perithecium relatively small and narrow, dull amber-yellow 7 to brown, the upper half or more free 

 from the receptacle, tapering somewhat distally, curved toward and partly across the appendages; the 

 tip not well distinguished, broad, its distal margin often concave, the lips projecting slightly on either side, 

 the lip-cells black, except about the pore. Receptacle slender, amber-yellow, becoming tinged with brown 

 especially distally, strongly curved throughout, the concave side anterior. Insertion-cell black and thick, 

 narrower than cells IV and V. Appendages straight and rigid, the outer usually simple, its basal cell 

 large bulging and blackened externally, much larger than that of the inner appendage which gives rise to 

 a branch on either side with short antheridial branches near the base. Perithecia 90-130 X 22-26 p. 

 Total length to tip of perithecium 250-500 p; to insertion-cell 425-185 p. Greatest width 37-55 p. 

 Appendages more than 200 p (broken). 



On Miscelus Javanus Klug., Hope Collection, No. 308, Java; on Miscelm sp., Paris Museum, 

 Nos. 114 and 115, New Guinea; on Catascopus ? sp. Brit. Mus. No. 003, Assam India. On the elytra 

 and inferior surface. 



This species is well distinguished by its subfalcate habit, the whole plant being evenly curved from 

 base to tip, the small narrow perithecium with its broad obtuse tip lying against the straight appressed 

 appendages. The receptacle is relatively long and slender, and faintly punctate. The material from 

 Assam (fig. 26) though much larger and darker than the type form from New Guinea (figs. 24—5), is other- 



