1 Light: Notes on Philippine Termites, II 49 
genus. The* American species is P. simplex (Hagen), found in 
the East Indies and Florida ; the Formosan species is P. japonicus 
Holmgren; Ceylon has P. flavus (Bugnion and Popoff) ; Samoa, 
P. inopinatus Silvestri ; Krakatoa, P. krakataui Holmgren ; 
P. oceanicus Holmgren is found in Cocos Island; and P. tvas- 
manni Holmgren, in Costa Rica. In view of this peculiar distri- 
bution of the genus it was to be expected that the Philippines 
would show at least one Luzon species and perhaps others from 
different islands. The facts in the case are a good example of 
the surprises which await the termite collector in the Philippines. 
This genus was not encountered until collections were made on 
the Manila-North Road where, near the Bulacan-Rizal boundary, 
three soldiers of P. luzonensis sp. nov. were found, without 
workers, in a stump. Later collections showed, within 50 meters 
of this, a small complete colony of P. gracilis sp. nov. (see below) , 
with a dealated adult living in the hollow end of a branch of a 
guava tree. Still later collections produced from a similar 
situation, within a kilometer or two of the spot, the large colony 
with many winged adults on which the new species P. luzonensis 
is based living in close relation with a Hospitalitermes species 
and a Neotermes species. Extensive collections since that time 
have shown no other colonies in Luzon, although a few winged 
adults have been taken. 7 
Prorhinotermes luzonensis sp. nov. Plate 3, figs. 1 and 2, text fig. 2. 
Types. — Winged adults, large and small soldiers, workers, and 
nymphs, No. 27 in the type collection (from No. 205 in the gen- 
eral collection) . 
Cotypes. — No. 97 ( McGregor and Light), Rizal-Bulacan boun- 
dary, September 13, 1920; No. 205 and mixed with No. 209 in 
the general collection ( McGregor and Light), Rizal Province, 
about one kilometer from the Rizal-Bulacan boundary on the 
Manila-North Road, October 4, 1920; No. 436, near No. 205 
( McGregor and Light), March 27, 1921. 
DIAGNOSIS 
Adult. — Length, 7 to 8 millimeters, with wings, 11 to 12 milli- 
meters ; anterior wing, 9 millimeters long. Antennae with 18 to 
21 segments. Pronotum 1.50 millimeters broad by 0.75 to 
0.85 millimeter long. Wings in appearance like those of P. flavus 
1 Collections recently made in the central islands of Cebu and Negros 
show one or more species of Prorhinotermes to be common in the former 
island and fairly so in the latter. 
180365 4 
