352 



THAXTER. MONOGRAPH OF THE LABOULBENIACEiE. 



straight; the character of the outer appendage, which is more or less deeply suffused toward the base and 

 from the basal or subbasal cells of which, sometimes from both, arise simple, more or less rigid branches 

 of variable length, tapering and rather slender; the normal color of the receptacle and perithecium is a 

 characteristic red amber-brown, which may often be obscured by smoky brown shades. Some South 

 African and Madagascar specimens are uniformly pale yellowish, sometimes without any suffusions, even 

 in the appendages, and closely resemble the simple types of />. Brachini which replaces L. Rougctu on 

 these hosts in the western hemisphere. 



Two varieties on Brachini from the Orient are distinguished below. Exclusive of these, the material 

 examined of this species is as follows: Paris Museum No. 30 on Brachinus sp., Algeria; No. 35 on Chlae- 

 nius ceneocephalus Dej., Algeria; No. Gl on Brachinus nigricornis Gebl., Asia; No. G2 on Brachinus 

 sp., Africa; No. 129 on Brachinus sp., Turkestan; No. 190 on Chlcenius gracilicollis, Turkestan (also 

 from British Museum No. 590). British Museum No. 5:52 on Aptinus sp., Port Natal, Africa; No. 538 

 on B. exhalans Rossi, Athens, Greece; No. 542 on Brachinus sp., ( 'ape of Good Hope. Hope Collection 

 No. 242 on Aptinus Italirus, Rome; No. 243 on A. Boeticus. Andalusia, Spain ; No. 240 on A. displosor 

 Dufour, Spain; No. 251 on B. angustatus Dej., Morocco; No. 320 on Chlaenius Mediterraneus; No. 327 

 on Leistus praeustus Fabr. = rujescens Fabr. (no locality); No. 347 on B. crepitans Linn., England: 

 Berlin Museum No. 979 on B. humeralis Ahr., France; No. 984 on B. gentilis Erichs., Angola, Africa; 

 No. 980 on B. Bayardi Dej., Bagdad; No. 987 on B. bipustulatus Quens., Caucasus; No. 988 on B. cyani- 

 pennis, and No. 989 on B. ruficeps Fabr., Cape of Good Hope. 



The following varieties occurring on the larger oriental species of Brachini may be distinguished. 



Var. Chinensis nov. var. This form which is common on various oriental species of Brachinus, 

 is distinguished by its large size, 450 to the tip of its perithecium, and the luxuriant development of its 

 several times divaricately branched appendages which may measure more than 450 fi. The general color 

 and form of the receptacle are as in the type, the perithecium more distinctly inflated as shown in fig. 8, 

 Plate LV, which is much reduced. 



On B. Chinensis Chaud., British Museum 530, China; Hope Collection, No. 244, Hong Kong; 

 Paris Collection No. 59 Macao, China; Berlin Museum No. 997, Hong Kong. On Brachinus sp. British 

 Museum No. 539, China. 



Var. Japanensis nov. var. This is a large form, the largest specimens measuring 700 fi to the tip of 

 the perithecium, and is distinguished by the very stout outwardly curved relatively short appendages, 

 which are closely branched at and near the base; the whole basal region becoming black and opaque in 

 some specimens, a condition not marked in the individual illustrated in Plate LV, fig. 7. The general 

 color is as in the type, the perithecium somewhat inflated and relatively small. The twenty-five specimens 

 of various ages that have been examined are constant and readily separable from any other forms of L. 

 Rougetii. In a few individuals the dense branching of the appendages gives an appearance very similar 

 to that seen in certain forms of L. Brachini. The branches do not, however, result from a repeated pro- 

 liferation of the basal cells, the characteristic oblique black septa are absent, and the antheridia are of a 

 different type. 



On Brachinus sp., Japan, Sharp Collection, No. 1188. 



The species is thus similar on the one hand to L. flagellata and its near relatives, and on the other 

 to L. Brachini through the var. Japanensis. 



Laboulbenia bilabiata Thaxter. Plate LV, fig. 9. 

 Proc. Am. Acad. Arts and Sci., Vol. XLI, p. 315. July, 1905. 



Form stout, the basal cell of the receptacle nearly hyaline, the subbasal becoming amber-yellow, the 

 parts above it clear amber-brown. Perithecium stout, nearly symmetrical, tapering to the broad tip, the 

 anterior lip-cells modified subterminally to form a closely approximated pair of broadly rounded projec- 

 tions, which are subtended on the inner side by the slightly prominent rounded apex, which is in turn 



