456 MAJOR. F. C, FRASER ON 
Tour Cham is in the coastal plain of Phanrang; short os 
dotted with thorny bushes (No. 33). 
Collecting insects did not come within the plan of our visit 
to Annam and it was the beauty of the Calopterygine that inspired 
us to begin capturing them. I regret that I have to trust to 
memory for the few details of habitat given above. 
C. Bopen Koss, ] 
SYSTEMATIC. 
ORDER. ODONATA. 
Suborder. ANISOPTERA. 
Family. AESCHNIDAE. 
Subfamily. CoRDULEGASTERINAE. 
Genus ANOTOGASTER, 
_ 1. ANOTOGASTER KLOSSI, sp, DOV. 
One 8. 
The insect is in a dirty condition and I surmise that it was 
taken in the act of oviposition,as members of the genus are accustomed 
to descend into water for this purpose and so often get more or less 
soiled with mud in the process. It is of great dimensions, the total 
expanse being 140 mm., the length 118 mm., hindwing 67 mm., and 
abdomen including ovipositor 80 mm. 
Head : eyes green, rest of head blackish brown marked with 
yellow as follows:—A streak across the face involving the lower 
part of epistome, the attached border of labrum and a large spot on 
the lateral lobes of the labium. The edge of the occiput is fringed 
densely with short, stiff, black hairs. 
Prothorax blackish brown with a pyriform, subdorsal spot of 
yellow on each side. 
Thorax dark brown marked with yellow :—a wedge-shaped 
antehumeral spot with the base upwards, approximating to its fellow 
above and diverging below, a broad stripe at the side, and the 
metepimeron largely yellow. 
Abdomen a tawny yellow with the internodal joints and the 
area immediately in front of them brownish black. Legs black. 
Ovipositor very robust, 
JOURN, NAT, HIST, SOC, SIAM, 
