786 JOUliXAL, FyOMBAY yATUUAL HIST. SOCIETY, Vol. XXI. 



15-5-1911. — " Tall mound on ojjen space in small babiil-wood. 

 Kino- and queen, — As regards guests taken in this and preceding 

 nests (Termitoxenia Heimi, Wasm., Gori/tJioderus riihlwjer, Wasm., 

 Chaetoinsthes Heimi, Wasm., etc.), the species tallies Avell with 

 Odontotermes ohesus, subsp. wallonevsis, Wasm." (Assmuth.) 



PoONA, May 1911. — " Collected from mounds by S. (i. Gadgil, 

 Esq., M. A." (Assmuth). 



Note. — This species, though doubtlessly very close to 0. eeiiloni- 

 cus, is, nevertheless, as stated above, well differentiated from it. 

 Biologically the two kinds represent in all probability two different 

 types inasmuch as 0. hrunneus builds mounds of its own, whei'eas 

 ■ceylonicus, according to Escherk^h, appears to live as an inquiline 

 in nests of 0. Redemanni and obscuricei^s ; so far, at an)- rate, no 

 mounds built by ceylonicus have been recorded. 

 Odontotermes Fece, Wasm. 

 Imago.— Not known. 



Soldier. — For description, see Wasmann, Neue Termitophilen 

 und Termiten aus Indien, 1896. 



I make the following additions : — Soldier very like that of 

 0. Ilorni, Wasm. Head, however, more narrowed anteriorly ; man- 

 dibles shorter and somewhat weaker ; tooth of left mandible placed 

 more towards middle, that of right, central, rudimentary ; labrum 

 longer, covering half the length of mandibles, 

 distinctly bilobed anteriorly. 

 T(en2:th of body 



,, ,, head with mandibles 

 ., ,, ,, without mandibles .. 

 Breadth of head 



,, ,, pronotum ... 

 Larger Worker. ^Close to worker of 0. TJorni. Fontanelle 

 distinct, but not brown. Antennas of 19 segments, third shorter 

 than second, yet somewhat longer than fourth. Pronotum slighth' 

 bilobed anteriorlj-. Pilosity plentiful. 



Length of body ... ... 6 mm. (Wasm. 5 mm.) 



Breadth of head ... 1*92 mm. 



,, of pronotum ... 1*15 ,, 

 Smaller Worker.— A ntennaj of 17 segments, third very short 



