Agricultural Gazette. 



In case only one sex is known the following keys will be found useful : — 



Key to Males. 

 Bursa none — Page. 



Spear 1- ; resophagus 13' .3 arenarlns 170 



Spear 4'; oesophagus 7' 2 SchaclUii 170 



Bursa completely enveloping the tail — 

 (Esophagus 23- to 2-t" — 



Length '77 mm. ; width 4'3 9 ohtmus 172 



Length -45 mm. ; width 3 '7 8 jiratenais 171 



Oesophagus 18' or less — 

 Spear a mere point or invisible — 



Spicula L-sliaped 11 imperfectus 172 



Si>icula straight 12 funqorum 172 



Spear distinct — 



Lengtii at least 2 mm. — 



Width 3-5 13 ncandens 173 



Width 1-4 6 gracilis 171 



Length 1 '5 mm. or less — 

 Width about 4-— 



Cuticula with two lateral and four 



submedian wings 7 lamelli/erm 171 



Cuticula with no such conspicuous wings 5 rlubi^is 171 



Width 3' or less — 



Anus 97 "5 ; spear 4' 4 robiisltis 170 



Anus 93'5 ; spear 1" 14 deva-itatrix 173 



fSursa incompletely enveloping the tail — 

 Anus about 67' — 



Width 3-3 17 fdiformis 174 



Width 1-9 16 kiitoaoma' 174 



Anus 85' or more — 



(Esophagus indefinite with no bulbs 1.5 velatus 1 74 



(Esophagus de6nite — 

 Neck 27- to 29 • — 



Spear large {5-5) ; spicula long 18 macrophallus 174 



Spear shorter (2-) 19 pilluli/cr 174 



Neck 20' or less — 



Width 5- ; oesophagus 10' 23 Askanasei/i 176 



Widtli 3'6 or less ; oesophagus 15" or more — 



Spear stout ; conspicuously bulbed 20 Davainii 175 



Spear weak ; inconspicuously bulbed — 



(Esophagus 15- ; tail 85' 22 ekgans 175 



(Esophagus 20' ; tail 90- 21 hilermedlus 175 



