36 The Philippine Journal of Science 1921 
to the heartwoocl, where they were running longitudinal tunnels. 
The forms which I had formerly distinguished as “workers” as 
contrasted with the nymphs all bore large wing pads, which 
would seem to bear out the belief that there is no definitely dif- 
ferentiated worker caste, and that the opaque so-called nymphs 
are probably early stages of supplementary reproductive forms. 
I was greatly pleased on examining the venation as seen in 
these wing pads to find that the median runs parallel to and 
midway between the radius sector and the cubitus, thus con- 
firming my diagnosis of this as a species of Kalotermes. 
Material for a study of the protozoan fauna of this species 
has been sent to Professor Kofoid. 
Genus CRYPTOTERMES Banks 
Subgenus Cryptotermes (Banks) Holmgren. 
DIAGNOSIS 
Adult. — Median vein bends up to unite with the radial sector 
beyond the middle of the wing. Wing iridescent. Antennse of 
14 to 16 segments. 
Soldier. — Head short, high, and thick, bilobed anteriorly, with 
a vertical frontal area containing a distinct cavity. Mandibles 
short, humped basally, bent near the middle, weakly toothed or 
untoothed. Antennse of 9 to 13 segments, the third not es- 
pecially long. Pronotum with strongly concave anterior mar- 
gin, not toothed. Styles reduced. 
The genus Cryptotermes comprises species from all parts of 
the world. They are typically house termites, living in boards, 
furniture, etc., in houses or, more rarely, in dead wood of trees. 
They are extremely ubiquitous; there is hardly a house in the 
Islands but harbors these little wood destroyers or those of the 
very closely related genus Planocryptotermes. Haviland points 
out a similar condition in Borneo, and it is probably true in the 
entire tropical Indian and Malayan regions. Their presence is 
usually manifested by the piles of little impressed fsecal pellets 
which they drop from apertures in the board they are attacking. 
There are apparently a number of Philippine species with this 
habit. Their collection is made difficult by the necessity of 
removing or destroying boards, furniture, etc., to get at the 
termites. 
Cryptotermes cynocephalus sp. nov. Plate 2, figs. 1 and 2. 
Types. — Adults, soldier, larva, and nymph, No. 25 in type col- 
lection. Soldier, larva, and nymph from No. 67 of the general 
