284 ^^^6 Philippine Journal of Science isis 



tenor border; mesonotum as broad as pronotum, narrower than 

 metanotum; abdomen oblong; abdominal papillse present. 



Measurement. Mm. 



Length of head 1.56 



Width of head 1.46 



Length of pronotum 0.50 



Width of pronotum 0.94 



Length of body 5.50 



Worker. — Antennae 14-jointed, 2d joint longer than 3d; 

 pronotum much narrower than head, semicircular, with bilobed 

 anterior border; body 5 mm. long. 



Habitat. — Singapore. 



Remarks. — This species is closely allied to Coptotermes for- 

 mosanus Shiraki, but differs in the dimensions of the imago and 

 in the width of the soldier's head. Its habit of killing gum trees 

 is remarkable. 



Termes (Macrotermes) singaporensis sp. nov. 



Imago. — Head and thorax chestnut brown, in the middle of 

 forehead a pale brownish spot ; mouth parts and antennae yellow- 

 ish brown; abdomen brown, darker on dorsum, but paler along 

 posterior margins of sternites ; legs yellowish brown ; head round, 

 slightly longer than broad, with slightly concave anterior and 

 rounded posterior borders; epistome vaulted, posterolateral 

 angles not extending to anterior angle of head; middle of ver- 

 tex slightly concave, with a small elevated median spot; eyes 

 very large, rounded; ocelli round and prominent, distant from 

 eyes by less than half their diameter; antennae 19-jointed, 

 slightly longer than head, 2d joint cylindrical, as long as 3d; 

 labrum longer than broad, reaching to apex of mandibles, 

 with rounded anterior border; pronotum semicircular, broader 

 than head, with anterior border nearly straight and slightly 

 elevated in the middle parts, posterior border arcuate and con- 

 siderably concave in the middle; anterior angles depressed and 

 obtusely rounded; mesonotum and metanotum as broad as pro- 

 notum; metanotum with markedly concave posterior border, 

 posterior angles slightly rounded; wing-stumps moderately 

 large, the anterior subequal to the posterior. Wing fuscous, 

 transparent, with yellowish brown costal margin; radius run- 

 ning near to, and parallel with, costa; median nerve branches 

 out from wing-stumps, and runs nearer to cubitus than to radius, 

 giving 6 branches to posterior border of wing; cubitus running 

 midway through wing, not reaching to apex, but giving off 

 12 branches; legs slender; tibiae provided with 2 bristles at 



