no 



J. W. S. MACFIE AND A, INGRAM. 



Seg. 

 ment. 



Seta. 



(7. decens. 



C. invidiosus. 



; well- developed tuft, reaching 

 about half-way across the fourth 

 segment 



C ; small 



D ; minute 



IV. A ; rather long and slender 



B ; long, strong, reaching almost 



across the fifth segment 

 B' ; small tuft, external to B 

 B" ; small tuft, anterior to B 

 C ; well-developed tuft reaching fur 



ther than half-way across the 



fifth segment 

 C ; small 

 D ; minute 



V. A ; rather long and slender . . 



B ; very long and strong, reaching 

 beyond the posterior margin of 

 the sixth segment 



B' ; rather small tuft, external to B . . 



B'^ ; moderate length, external and 

 anterior to C 

 ; weU- developed tuft, reaching fur- 

 ther than half-way across the 

 sixth segment . . 



C ; smaU 



D ; minute 



VI. A ; rather long and slender . . 



B ; very long and strong, reaching 

 beyond the posterior margin of 

 the seventh segment . . 



B' ; small tuft, external to B 



B'' ; moderate length, situated exter- 

 nal and anterior to C . . 



C ; well- developed tuft, reaching 

 about half - way across the 

 seventh segment 



C ; smaU 



D ; minute 



VII. A ; constituent hairs strong, usually 



sub-plumose and often branched, 



sometimes simple 



A' ; small tuft 



B ; moderate length and strength 

 B' ; moderate length, external to B 

 B" ; moderate length, internal to B 

 C ; moderate length, reaching about 

 half-way across the eighth seg 

 ment 

 C ; small, external to C 

 D ; minute 



VIII. lA ; well -developed tuft, constituent 

 hairs strong, usually branched 

 and sub -plumose 



D • minute 



P ; moderate length, slender 



P' and P" ; very small 



6-9 



1 



1 



2-4 



3-4 



Small tuft, 1-3 hairs 

 Small tuft, 4-6 hairs 



4-8 



1 



1 



3-4 



Small tuft, 2-5 hairs 

 1-2, usually 2 



4-8 



1 



1 



3-4 



2 

 2-4 



4-7 



1 



1 



3-5 



Small tuft 



2 



2 



1-4 



2-5 



1 



1 



6-7 



1 



2 



Two small setae 



6-12 



1 



1 



3-4 



4-6 



Small tuft, 1-3 hairs 



Small tuft, 4-7 hairs 



6-10 



1 



1 



3-4 



Small tuft, 2-6 hairs 

 2-3, usually 2 



6-7 



1 



1 



3-5 



2 

 2-4 



4-8 



1 



1 



2-4 



SmaU tuft 



1-3 



2 



2-5 



4-7 



1 



1 



5-9 

 1 



2 



Two small setae 



