60 
The Philippine Journal of Science 
1921 
mesonotum much shorter and narrower, metanotum somewhat 
narrower ; lateral margins of mesonotum receding, those of meta- 
notum convex; posterior margin of each slightly emarginate in 
center. Coxae, femora, and, to some extent, tibiae swollen ; tarsi 
very slender, strongly chitinized, yellow. Body slender, thorax 
particularly so, abdomen broadest near posterior end. Body 
and legs with scattered larger hairs and numerous smaller, in- 
curved, posteriorly directed hairs, similar to those of the 
antennae; hairing most prominent toward posterior tip of abdo- 
men; head more sparsely haired. Cerci prominent. 
Measurements of Leucotermes philippinensis sp. nov., soldier. 
Body length 
Head length 
Head, without mandibles 
Head width 
Pronotum width 
Pronotum length 
mm. 
4.25 - 4.75 
2.15 - 2.25 
1.10 - 1.50 
0.80 - 0.90 
0.68 - 0.78 
0 . 425 - 0.50 
Worker. — Small ; body white ; head very pale yellow with excep- 
tion of exposed portion of mandible and mandibular articulations 
which are brownish yellow. Body, head, and legs covered with 
numerous hairs, the larger and more scattered hairs yellow, the 
shorter and more numerous, incurved, and posteriorly directed 
hairs white; body most heavily haired posteriorly, body longer 
than that of soldier ; head broadly oval ; clypeus swollen ; antennae 
of 15 segments, first long, curved, not distally swollen as in the 
soldier, apical segment slender, egg-shaped, longer than others 
with exception of first segment, haired as in soldier. Fonta- 
nelle and sutures not visible. 
Nymph . — Much like worker but abdomen very much longer 
and whiter, anterior wing pads 0.10 millimeter long ; head much 
broader behind, clypeus very greatly swollen, distinctly bilobed ; 
anterolateral corners of frons high, projecting; compound eye 
projecting but little; antennae of 16 or 17 segments, shaped and 
haired like worker; fontanelle and Y-suture not visible. 
DISTRIBUTION AND BIOLOGICAL NOTES 
The specimens on which this species are based were collected 
for me by Miss Ursula B. Uichanco, head of the department of 
biology, of the Philippine Normal School. Three soldiers, a 
number of workers, and several nymphs (No. 128) were collected 
on September 24, 1920, from galleries in cracks in the cement 
floor and from the door jamb of the storeroom. One soldier 
and a few workers (No. 132) were collected on September 26, 
