on the Genus Tetracanthagyna. 443 
a. In addition to the costal vitta there is a broad brown band 
(in the Q only?) between the nodus and _ pterostigma. 
Anterior wings with about 36-38 antenodals and 24-25 
postnodals, Length of posterior wing 65-68 mm. Length 
of abdomen 59-60 mm. . . . . . . T. BRUNNEA, sp. nov. 
Hab, Nortu Borneo. Two ? in Coll. McLachlan. 
aa. No brown band between the nodus and pterostigma in 
either sex. Anterior wings with 38 antenodals and 25 
postnodals. Length of posterior wing ¢ 56mm., 9 65mm. 
Length of abdomen 965mm. .. . . T.pEGoRSI, Martin. 
(Bull. Soc, Ent. Fr., 1895, p. ecexciii.) 
Hab. Borneo. f ¢ Coll. Martin, not seen by me. 
It is just possible that 7. brunnea may be founded 
on more mature individuals of degorvsi; but more material 
is necessary. 
2. Sides of the thorax with two broad pale bands. Neuration 
black. In the wings (?) there is no dark costal vitta, but a 
dark brown mark at the base extending a short distance along 
the subcostal area ; no brown band, but the apical portion of 
the wing is slightly tinged. Anterior wings with about 28 
antenodals and 18 postnodals. The area between the two 
sectors of the triangle in the anterior wings dilated at the 
base and with two rows of cellules, followed by one. Length 
of posterior wing 61 mm. Length of abdomen 58 mm. 
Oe ee et ae T, WATERHOUSEI (Selys MS.) sp. n. 
Hab. Borneo, one ? in the British Museum bearing 
the MS. name here adopted; one ? in coll. McLachlan, 
without locality. 
This would seem to be a very distinct species by the 
restriction of the wing markings, notwithstanding that the 
deep black neuration indicates maturity. The neuration 
is also less dense, and it is the only species at present 
known with the area between the sectors of the triangle 
in the anterior wings dilated at the base and with two 
rows of cellules. 
It remains to allude to certain specimens that I cannot 
locate with certainty. 
Ina male from Pulo Nias (Coll. McLachlan) the legs are 
