330 Philippine Journal of Science 19 19 



Larva of soldier, with 12-jointed antennae. — All parts of body 

 milk white ; tips of mandibles pale brown ; head coarsely pilose ; 

 thoracic plates hairy; abdominal tergites densely covered with 

 short hairs. 



Head broadly oval, slightly longer than broad, broader 

 anteriorly; fontanelle indistinct; antennae 12-jointed, second 

 joint nearly as long as third, third joint narrowest, fourth joint 

 shorter than second, fifth to ninth joints spherical, apical joint 

 elongate, narrower anteriorly; clypeus twice as broad as long, 

 anterior border rounded, boundary between anteclypeus and 

 postclypeus indistinct; labrum lancet-shaped, mandibles rather 

 short and broad, with pointed and incurved tip ; pronotum nar- 

 rower than head, oval, anterior and posterior borders rounded; 

 mesonotum and metanotum round, the former narrower than the 

 latter and broader than pronotum. 



Measurements. 



mm. 



Length of body 4.00 



Length of head with mandibles 1.50 



Length of head without mandibles 0.93 



Width of head 0.90 



Width of pronotum 0.53 



Length of pronotum 0.31 



Larva of royal form, with 12-jointed antennte. — Head, thorax, 

 and abdomen whitish and sparingly provided with minute hairs. 



Head round, nearly as long as broad, anterior corners of 

 transversal band yellowish brown; postclypeus slightly swollen, 

 longitudinally depressed along median line; anteclypeus as long 

 as postclypeus, anterior border rounded; labrum tongue-shaped, 

 overlapping the mandibles; mandible triangular, cutting edge 

 dark brown; antennas 12-jointed, second joint as long as fourth, 

 third joint smallest, nearly half as long as second; pronotum 

 ovoid, anterior border convex, slightly emarginate at middle, 

 posterior border rounded; mesonotum and metanotum broader 

 than pronotum, mesonotum narrower than metanotum. 



Measurements. 



mm. 



Length of body 3.50 



Length of head 0.84 



Width of head ■ 0.87 



Width of pronotum 0.50 



Length of pronotum 0.21 



Remarks. — In the present phase the external characters of 

 the larva of the worker are similar to those of the larva of the 

 royal form, except the size of the head. The former is provided 



