VIII, D, 4 Oshima: Termites of Japan 275 



costal on the basal fourth of wing ; radiussector with 7 branches, 

 the first one branches out from the point of basal fifth of wing; 

 median and cubitus colorless, the former arcuate and joining the 

 radiussector beyond the starting point of its fourth branch. 

 The cubitus runs medially through the wing, and gives 11 

 branches to the posterior border. 



Measurement. Mm. 



Length with wings 8.50 



Length without wings 5.50 



Length of head 1.12 



Width of head 0.85 



Length of pronotum 0.61 



Width of pronotum 1.00 



Soldier. — Pale yellow above, anterior half of head nearly 

 black, posteriorly blackish purple; antennae pale yellow; head 

 quadrangular, truncated in front, and disposed at right angles to 

 mandibles; posterior border rounded; antennae 13-jointed, 2d 

 joint cylindrical, twice as long as 3d; 4th joint ring shaped; 

 below the antennal fossa 

 is a strong spine, project- 

 ing anteriorly ; mandi- 

 bles subtriangular, with 

 incurved tip, slightly 



curved upward in lateral ^'°- ^- Coptotermes fig. 2. Coptotermea 



J, , J,, kotoensis Oshima. ogasawaraensiasV' 



View ; cutting edge 01 ieit MandiWes of soldier. nov. Mandibles of 



mandible with 2 small °" '^** mandiWe; h. soldier, a, rieht 



, , right mandible. mandible; 6, left 



teeth near its apex and mandiwe. 



a strong basal tooth; 



that of right mandible with a broad tooth in the middle; rudi- 

 mentary eye ovate and colorless; jugular sclerites very large, 

 longer than half the length of head ; pronotum semicircular, dis- 

 tinctly emarginate at middle of anterior border ; mesonotum and 

 metanotum together shorter than length of pronotum ; hind legs 

 not reaching to tip of abdomen. 



Measurement. Mm. 



Length of head with mandible 1.61 



Length of head without mandible 1.39 



Width of head 1.29 



Length of pronotum 0.84 



Width of pronotum 1.23 



Locality. — Ogasawarajima or Bonin Islands, in the subtropical 

 region of the Japanese Archipelago; collected by Mr. M. Ishida 

 on August 23, 1912. 



Remarks. — This species is closely allied to C. kotoensis Oshima. 

 However, a close comparison of the two species shows several 

 discrepancies. In the present species the antennae of the imago 



119837 3 



