86 The Philippine Journal of Science 1921 
longer than the second, pygidium and hypopygidium triangular 
apically. Black, thorax dorsally with a faint bluish reflection, 
basal tergites cceruleous; tegule ferruginous; clypeus except 
margins, mandibles, line on pronotum laterally (interrupted in 
type and wanting in one paratype), anterior coxe beneath, 
femora, and the four anterior tibiz beneath yellowish; clothed 
with long whitish hair, sides of thorax with whitish pile in 
addition; wings brownish hyaline with a slightly yellowish re- 
flection; venation brown. 
In one paratype the lower inner eye margins are narrowly 
yellow. 
Type locality—Mount Madquiling, Laguna, Luzon. 
Type.—Catalogue No. 23588, United States National Museum. 
Luzon, Laguna Province, Mount Maquiling (Baker 4962) 
1 male (type), (Baker 3190) 1 male: Bataan Province, Lamao 
(C. V. Piper). 
Genus LIACOS Guérin 
This genus, which in habitus closely resembles Scolia, is repre- 
sented by one species. 
Liacos (Triliacos) analis (Fabricius). 
A medium-sized black species with the two apical segments 
densely clothed with reddish hair. Wings blackish with a faint 
violaceous reflection basally. 
Luzon, Laguna Province, Los Bafios (Baker) 2 females; 
Mount Maquiling (Baker 1541) 2 males: Bataan Province, La- 
mao (C. V. Piper) 1 male, (C. R. Jones) 1 male, under Bureau 
of Agriculture accession No. 849. 
Genus CAMPSOMERIS Lepeletier 
All the species of this genus which occur in or have been 
reported from the Islands belong to the subgenus Campsomeris 
and have only two closed cubital cells. In this genus there is a 
marked antigeny, and therefore it is very difficult to associate 
the sexes. To add to this difficulty the species have not been 
fully described, thus always leaving some doubt as to the correct- 
ness of the identification. It seems to me that when more 
material from the Oriental Region has been studied additional 
species will have to be described and that some of the forms 
which are at present treated as unnamed varieties will be found 
to be sufficiently distinct to deserve names. 
The following key includes only species represented in the 
Philippine material before me, omitting the species Campso- 
