PHLEBOIOMUS. 203 



Table of Species. 



1. The 2iid longitudinal vein forks nearer 



middle of wing than at one-fourth. 

 Petiole of 1st submarginal cell always 

 mucii longer than one-third of the cell's 

 length, except in himalayensis, in which 



it forks exactl}^ at one-third 2. 



The 2nd longitudinal vein forks exactly 

 at one-third of the wing. Petiole of 1st 

 submarginal cell only one-third as long- 

 as the cell 8. 



2. Tip of 1st longitudinal vein either about 



half-way between fork of 2nd vein and 

 tip of wing, or nearer tip of wing .... 3. 

 Tip of 1st longitudinal vein distinctly 

 nearer fork of 2nd vein than tip of wing. 5. 



3. Fork of upper branch of 2nd longitudinal 



vein nearer fork of 2nd vein thau tip of 

 1st vein. Wing comparativly lanceolate ; 

 fork of 2nd vein beyond that of 4th vein. 



Colour of insect yellowish grey. Geni- [p. 204. 



talia of male with three chaitaj at tip . . himalayensis, Ann., 

 Fork of upper branch of 2nd longitudinal 

 vein nearer tip of 1st longitudinal vein 

 than fork of 2nd vein 4. 



4. "Wing broader ; fork of 2nd vein before 



that of 4th vein. Colour of insect dark 

 greyish brown. Genitalia of male with 

 botli the middle chsetfe median. Hind 

 femur between one-half and three- 

 quarters as long as its tibia, and dis- 

 tinctly longer than the metatarsus, 

 which is shorter than the rest of the 



tarsus. Length 2| mm jL>e/'^e/r6rt?J5, Meij., p. 205. 



Wing lanceolate: fork of 2nd vein and 

 that of 4tli vein practically opposite one 

 another. Colour of insect silver-grey. 

 Genitalia of male with the middle 

 chtetoe subapical. Plind femur nearly 

 as long as its tibia, more than twice 

 the length of the metatarsus, which is 

 shorter than the rest of the tarsus. 

 Length 1^ mm minutus, Rond., p. 206. 



5. Fork of upper branch of 2nd longitudinal 



barely before tip of 1st longitudinal 



vein. * Sides of thorax conspicuously 



paler than the dark dorsum. Genitalia 



of male with two chsetPe at tip and 



three median ones. Hind femur less 



than half as long as the tibia, distinctly 



shorter than the metatarsus, which is [p. 207. 



longer than the rest of the tarsus arymtipes, Ann. & Brun., 



* Implicit reliance must not be placed on absolute precision in this point, 

 as occasional individual exceptions occur. 



