1956] 
Brown — Philippine Strumigenys 
115 
at the gastric apex, entirely of short, appressed, whitish 
spatulate hairs, only moderately distinct on the head, where 
they are largest posteriorly; reduced, few and scarcely 
visible at all on alitrunk ; a few, inconspicuous, on the petio- 
lar and postpetiolar nodes. Hairs on scape border slender 
spatulate, subappressed and directed toward the scape apex. 
Gastric dorsum with very indistinct, small, fine appressed 
hairs, (color sordid yellowish ferruginous; dorsum of head 
feebly darkened in the middle. , 
Holotype [California Academy of Sciences] one of 21 
workers taken at San Jose, Mindoro I., Philippine Islands, 
from a nest in a small cavity in the soil, 3 inches below the 
surface (E. S. Ross leg.). 
Paratype workers: 20 workers from type nest series; 
numerous workers from near Dumaguete, Negros Oriental, 
Philippines (probably chiefly from the Cuernos Mts.) (J. 
W. Chapman and D. Empeso) ; one worker from MCZ 
miscellany. Victoria, Luzon (Pierce leg.) ; one worker from 
Jolo I., Philippines, from stomach of Rana microdisca 
leytensis in MCZ. tl 2. 2-2.7, HL 0.58-0.65, ML 0.26-0.30, 
WL 0.58-0.68; Cl 70-74, Ml 45-46. The larger workers are 
often lighter and more yellow in color. Paratypes in CAS, 
USNM, MCZ. 
Female, from type nest series: tl 2.8, HL 0.67, ml 0.29, 
WL 0.69; Cl 75, mi 43. Mesonotum with a feeble median sul- 
cus ; pilosity as on head, except for a pair of short, tapered, 
erect hairs on anterior scutum. Nodes broader than in work- 
er; petiolar node about as broad as long. Gaster more 
opaque, the striolae stronger and extending nearly the 
whole length of the basal tergite; coarser at extreme base. 
Anterior gastric dorsum with a widely spaced pair of very 
small erect clavate hairs. Medium ferruginous; ocelli small, 
with blackened callus at each. Male unknown. 
This species is so far known only from the Philippines, 
where it is widespread and apparently rather common. It 
combines features of the godeffroyi and szalayi groups, but 
seems best placed with the former group. It is strongly 
distinct in sculpture and pilosity. From S. phytibia sp. nov., 
another Philippine species with striate pospetiole, S. es - 
rossi differs in the more proximally placed preapical tooth, 
