THAXTER. — LABOULBENIALES PARASITIC ON CHRYSOMELIDAE. 33 



or irregularly quadrangular, its base resting on cell II; all the cells 

 distinguished from one another by more or less distinct indentations, 

 owing to the convexity of their margins which may be pronounced. 

 Insertion-cell thick and deeply suffused. Outer appendage consisting 

 of a divergent series of three cells, successively smaller and externally 

 more deeply suffused with blackish olive, the terminal one bearing 

 distally a pair of short branchlets radially placed; the basal and 

 subbasal each bearing a stout subterminal s'mple branch on the inner 

 side; basal cell of the inner appendage much smaller, bearing a branch 

 on either side which may be once branched ; all the branchlets rather 

 short and stout, never reaching to the tip of the perithecium. Peri- 

 thecium wholly free, almost subfusiform, the small but prominent 

 basal cells forming an indistinct stalk, often hyaline and contrasting 

 with the deep olive brown venter above; which is evenly inflated, 

 more strongly convex externally, but sometimes almost symmetrical, 

 tapering slightly to the truncate apex which is surmounted by a pair 

 of minute prominences. Perithecia, average, 80 X 25 fx. Spores 

 50 X 5 fx. Receptacle 70-80 X 30 n. Appendages longest 70 //. 

 Total length to tip of perithecium 150-175 //. 



On tips of elytra of Hermaeophaga sp., No. 2466, Port of Spain, 

 Trinidad. 



Several specimens of a species very similar to this, were obtained 

 on a species of Hermaeophaga from Jamaica. The cells of the recepta- 

 cle in this form bulge more prominently than in the type, but there is 

 otherwise slight difference between the two. The perithecium ap- 

 pears to be more often twisted about one fourth, so that the appear- 

 ance of the apex as above described is that of an anterior or posterior 

 view. 



Laboulbenia Manobiae nov. sp. 



Receptacle uniformly hyaline tinged with yellow, normal in struc- 

 ture; cells I and II subequal relatively large, somewhat more than 

 twice as long as broad; cells III, IV and VI subequal and subiso- 

 diametric, the latter, as well as the large external basal cell just above 

 it, bulging prominently. Insertion-cell broad, rather thin and black. 

 Basal cell of outer appendage somewhat longer than broad, externally 

 somewhat suffused, bearing a stout simple branch subterminally 

 which projects outward; its basal cell, except distally, deeply suf- 

 fused, the remaining cells nearly or quite hyaline; a second similar 

 but wholly hyaline branch arising terminally: basal cell of the inner 



