HYMENOPXEROUS FAMILY STEPHANIDiE. 



739 



Black ; head, mandibles except apices and the scape ferru- 

 ginous ; anterior legs chestnut- brown. Wings infumate, with 

 darker spot in middle. 



Length 20-40 mm. ; males average about 5 mm. less than 

 females. 



Habitat : East India ; Sarawak ; Java ; Bachian ; Ceram ; 

 Amboina; Kaissa; IS'ew Guinea; Australia; Sumatra. Dr.Dohrn. 



31. insularis Smith. Types in British Museum. From 

 Sarawak. Bather small, but typical specimens of S. coronator 

 Fab. 



Length J , 19 mm. ; $ , 20 mm. ; terebra 25 mm. 

 Text-fig, 2. 



Text-fie-. 3. 



Stephanus coronator. 



Stephanus coronator. 



This species greatly resembles S. ducalis Westw., from 

 which it may be distinguished by the smooth semiannular 

 and by the sculpture of mesonotum, mesopleurae, and median 

 segment. 



From S. hcematipoda Montrz. it can be known by its red head 

 with less prominent posterior margin, and by the sculptui"e of 

 head, median segment, and hind coxee; from S. sulcifrons Schlett. 

 it may at once be separated by the absence of the siilcus on 

 vertex and by the white-banded terebral sheaths, which latter 

 chai-acter will also distinguish it from the African S . pachylomerus 

 Schlett. 



Proc. Zool. Soc— 1922, No. L. 50 



