1954] 
Broivn — I ndo- Australian Strumigenys 
73 
General body color castaneous, head brownish-black ; 
pronotum dark ferruginous, mesonotum with lighter mark- 
ings anteriorly and along parapsidal furrows; legs, man- 
dibles and antennae sordid yellow-brown. Forewing with 
R -j- Sc, Stigma, 2r, Rsfi, Mfi, M + CuA and CuA persist- 
ing, but scarcely pigmented. Rs and M indicated apically 
by long grooves. Hind wing with 4 subapical hamuli. 
Wings densely microtrichiate. Volsellae not especially dis- 
tinctive; penis valves each with about 15 serrations. A 
second male taken in the type nest was smaller, but other- 
wise similar. 
Holotype worker, and worker and male paratypes taken 
from a single nest. Horns of Negros [Cuernos Mts.] near 
Dumaguete, Negros Oriental, Philippine Islands, at about 
1500 feet altitude (J. W. Chapman). Holotype deposited 
in the Museum of Comparative Zoology; paratypes in U. S. 
National Museum, California Academy of Sciences, and 
elsewhere. Several series of this species, collected by Dr. 
Chapman and D. Empeso in the Cuernos Mts. at or near 
the type locality, were examined after the descriptions had 
been drawn up. Although this additional material slightly 
extends the range of variation in dimensions and propor- 
tions, the total variation away from the holotype is hardly 
worth recording. 
S. chapmani is a species apparently totally different 
and distinct from any of the known groups of the genus 
anywhere in the world. Even its affinities with the re- 
mainder of the Indo-Papuasian fauna must be considered 
as more or less arbitrarily drawn. If the interpretation of 
the apical mandibular dentition given above is correct, a 
tentative relationship may be suggested with the loriae and 
szalayi groups; the form and tilt of the mandibles also 
suggests that of certain members of the “Labidogenys’^ 
complex. 
