THAXTER.— MONOGRAPH OF THE LAR()T'LBENIACK-K. 407 
On Cafius semhiUnis Horn, and C. canrsmis Mak, U. S. National Museum, I/>s Angela, ( 'alifomin 
On C. sericeus Holme, 15rit. Mus. No. 437, Great Britain. ( )n Cafius sj>.. Brit Mus. No. 42/ " Europe/ 
\o. 395, Hong Kong; C. bimkatus Sol., Chile, Paris Museum No. 171. ( hi Cajiui sp. Kittcrv Point. 
Maine; on C. catenahu, New South Wales, Sharp Collection, No. 1 136. < >n elytra and legs. 
Although entomologists appear to be somewhat doubtful whether the siaphvlinid genus Cafius should 
be separated from Philoiiihus, this cosmopolitan species of Laboulbeind <!<>. not em to share anv such 
uncertainty, as I have never seen it on any of the thousands of Philontki that I have examined, whil< 
members of the genus Cafius, as above indicated, are subject to its parasitism all over (he world Tin 
species is well marked, being clearly distinguished by its appendages, the outer and inner eventually so 
displaced that they lie nearly side by side, and consisting each of a single ries of xmiew hat obliquelj 
superposed cells which give rise externally to simple single branches, somewhat as in up]x»ndages of the 
Galerita-type. The species is remarkably constant considering its wry wide distribution, and is noi 
nearly allied to any other described form. 
LABOULBEXIA PALLE8CENS Thaxter. Plate IAI, figs. 9 10. 
Proc. Am. Acad. Arts and Sci., Vol. XLI, p. 318. July, 190/). LabouJbema [»i(liila. Thaxter, 1. c. Vol. \ \ \ \ 1 1 1 
p. 49, June, 1902: nee L. pallida, 1. c, Vol. XXXV, p. li». Dee. 1800. 
Hyaline, becoming faintly suffused with yellowish brown. Peril heeium one half or less free*, eon- 
colorous or slightly darker, stout, erect; the tip small, usually well distinguished, bent outward; the lip- 
cells outwardly oblique, the inner much more prominent, rounded distally, wholly suffused, except tin 
edges, with dark distinctly reddish brown. Receptacle normal, or often abnormally ■ ptate, more com- 
monly as a result of one or two distal divisions of cell V. Insertion-cell broad, reddish brown, transparent 
but contrasting, irregular in form, often oblique in position, being carried out free from the base of the 
perithecium, from which it is separated by the partly free upper margin of cell V, sometimes oik e divided 
vertically; an external distinct similar accessory insertion-cell, bearing a single appendage and standin 
in direct relation to one of the subdivisions of cell V is rarely present The appendages hyaline, in general 
normal, the outer basal cell twice or more than twice as large as the inner, bearing usually two branches 
which may be once branched, one of them sometimes an antheridial branch; the ba al cell of the inner 
appendage producing usually a branch on either side, which may bear only short antheridial branehlet 
or longer simple sterile ones. Antheridia relatively large, stout, single or in pairs. Spores 75 x 6 n. 
Perithecia 125-150 X 60-70 p. Receptacle 220-300 //. Longer appendages 150 ,". Total length to tip 
of perithecium 290-380 p. 
On elytron of Clivina jasciata Put*., St. Geronima, Guatemala ; British Museum, No. (17 1. ( >n t 
dilutipennis Putz., Mexico; British Museum, No. 675. 
This species is quite typical of the "CUvhw" group, the abnormal divisions below the insertion eell 
being characteristic; although in some specimens the receptacle is a olutely normal. It is distinguished 
by its pale color and the peculiar red shade of its insertion-cell, which is but faintly suffused, the suffusion 
at the tip of the perithecium having the same peculiar pale red tinge. In fig. 10 an individual is repre- 
sented in which an accessory insertion-cell is developed in connection with a evil distallv separated irom 
cell IV, which has the same reddish coloration. 
Laboulbenia Clivinalis Tbaxter. Plate LXI, figs. 5 «!. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 166. Dec, 1899 
Usually rather slender. Peritheeium three fourths or more free more or fen deeply tin.: 1 With 
blackish olive-brown, distally curved slightly outward, the tip black with hyal.ne tip-edges. ««*ptacJ 
wholly hyaline, or cells III and IV becoming more or less suffused with blackish brown the suffu* 1 areas 
punctate: bulging distally below the perithecium. Insertion-cell well differentiated, Mack App. n.la^ 
consisting of an inner and an outer basal cell, which may remain simple Of become longitudinal! 
divided, sometimes also transversdv or even obliquely: the outer basal cell hyahne, often several ton. 
