PROCEEDINGS 
OF THE 
CALIFORNIA ACADEMY OF SCIENCES 
FourtTH SERIES 
Vor. II, Pr. II, No. 16, pp. 309-310 June 16, 1919 
EXPEDITION OF THE CALIFORNIA ACADEMY OF 
SCIENCES TO THE GALAPAGOS ISLANDS, 
1905-1906 
XVI 
A NEW SPECIES OF THE HYMENOPTEROUS GENUS 
SCLERODERMA FROM THE GALAPAGOS ISLANDS 
BY 
CHARLES T. BRUES 
Bussey Institution for Research in Applied Biology 
Scleroderma galapagense, new species 
@. Length 2.5-3mm. Head and thorax pale brown to cas- 
taneous, abdomen fuscous or piceous, lighter toward apex and 
at the incisures; legs and antennz pale yellowish brown; wings 
entirely absent. Head shining, faintly shagreened, with a few 
isolated punctures ; one-half longer than wide; eyes one-fifth as 
iong as the head, bare; ocelli absent ; head widest at the middle, 
slightly narrowed behind with the angles rounded; malar space 
extremely short. Head below with sparse long pale back- 
wardly curved hairs. Antennz 13-jointed, reaching to the 
vertex, pedicel half as long as the scape and twice as long as 
thick; first flagellar joint minute, quadrate; second and third 
June 16, 1919 
