NEW INDO-MALAYAN LABOULBENIALES. 15 



length to tip of peritheciiim 450-500 n, greatest width 40 fx. Antheri- 

 dia about 12 /x. Appendages about 8 ju. 



On Copfengis SJupardi Pasc, Island of Djilolo. No. 1779, M. C. Z.; 

 the type on the margin of the right elytron ; the variety on the inferior 

 surface of the thorax and prothorax. 



The variety of this species above referred to, was found on the 

 same host, and differs in its smaller size, having a maximum length of 

 175 fjL, the members of its three cell-rows being half as numerous in 

 each series; none of the marginal cells separating more than two 

 appendiculate cells; the antheridia longer and somewhat more slender, 

 the appendages longer and more conspicuous, the tip of the perithe- 

 cium bent abruptly sidewise so that the apex appears to be evenly 

 rounded and suffused, although it is in reality hyaline and lateral 

 in position. Although the differences just mentioned appear to be 

 constant, the two forms resemble one another so closely that it has 

 not seemed desirable to separate them. The species is a very striking 

 and beautiful one, peculiar from the almost symmetrical lace-like 

 pattern of its cell-structure, and the very large numbers of conspicu- 

 ous purple-necked antheridia which it produces. 



Rickia Onthophagi, nov. sp. 



Rather long, hyaline to pale straw-yellow, structure subdeterminate, 

 foot relatively large. Basal cell longer than broad, slightly narrower 

 and faintly suffused below; its distal septum horizontal separating 

 it from two cells above which may be symmetrically paired or obliquely 

 related, the posterior cell placed higher and pointed below; the recep- 

 tacle above consisting of three cell-series; the basal cell of the axial 

 series either lying wholly above the basal cells of the two lateral series, 

 or intruded between them for half their length: the axial series con- 

 sisting of thirteen or fourteen cells of unequal length, but longer than 

 broad, the upper six or seven cells much smaller and nearly isodia- 

 metric, lying in close contact with the inner margin of the lower half of 

 the perithecium : the anterior row consisting of nine or ten cells extend- 

 ing to the base of the perithecium, each cell cutting off a vertical series 

 of subtriangular small cells, three or four from the upper to one from 

 the lowest members, all of which give rise to antheridia, or rarely to 

 very small appendages: the posterior series similar to the anterior, 

 consisting of about twelve to fourteen cells, and terminating in the 

 two-celled, somewhat prominent, divergent base of the primary 



