276 ^^^ Philippine Journal of Science i9i3 



are 14-jointed, the 2d joint being shorter than the 3d, while in 

 C. kotoensis they are 16- or 17-jointed with the 2d joint 

 longer than the 3d. Moreover, in the former the pronotum is 

 much broader than the head instead of being narrower or sub- 

 equal as in the latter. In the soldiers, the most notable difference 

 lies in the dentition of the mandibles, as shown in the following 

 figures; and, further, in C. ogasawaraensis the angle between 

 forehead and mandibles is a right angle instead of being oblique 

 as in C. kotoensis. 



Family MESOTERMITID^ Holmgren 



Subfamily COPTOTERMITIN^^ Holmgren 



Genus COPTOTERMES Wasmann 



8. Coptotermes formosanus Shiraki. 



Coptotermes formosanus Shiraki, * Trans. Ent. Soc. Jap. (1909), 2, 



239; OSHIMA, * Report Term. I (1909), 33, PI. 1, figs. 1, 2, 3, 11, 12; 



* Report Term. Ill (1912), 75, PI. 1, figs. 1, 28, PI. 2, figs. 3, 21. 

 Coptotermes gestroi Oshima, * Zool. Mag. Tokyo (1910), 22, 376; 



Nawa, * The Insect World (1910), 14, 597; Oshima, * Report Term. 



II (1911), 5. 

 Coptotermes formosse Holmgren, Termitenleben auf Ceylon (1911), 



192; Termitenstudien (1911), 2, 74; Yano, * Report Jap. Forestry 



Station (1911), No. 9, 62, PI. 4, figs. 12-20; HOLMGREN, Annot. 



Zool. Jap. (1912), 8, 121. 



Localities. — Shiraki's type was obtained in Taihoku, Formosa. 

 This is one of the commonest species in Formosa, and has been 

 recorded also from Japan proper, Shikoku, Kyushyu, Loochoo 

 Archipelago, and Hachijojima. 



Remarks. — Coptotermes formosanus is a species so very closely 

 allied to C. gestroi, that Wasmann, the original describer of the 

 latter, asserted, in a letter to Professor Watase, that the Formo- 

 san specimens represent true C. gestroi; however, they differ 

 from this in the soldier having a narrower head. 



Genus ARRHINOTERMES Wasmann 



9. Arrhinotermes japonicus Holmgren. 



Paratermes canalifrons Oshima, * Report Term. Ill (1912), 69, PI. 1, 



figs. 13, 23, PI. 2, figs. 9, 12. 

 Arrhinotermes japonicus Holmgren, Annot. Zool. Jap. (1912), 8, 122. 



Localities. — Botel Tobago Island (Oshima and Hozawa colls. ; 

 June, 1911). 



Remarks. — In 1912, I described this species under the name 

 of Paratermes (n. g.) canalifrons, at the time believing it to be 

 identical with Sjostedt's Termes (?) canalifrons, for which I 

 proposed the generic name above indicated. Now I see my 

 mistake, and accept Holmgren's generic identification and the 

 specific name given by him. 



