242 



[October, 



8. Extremity of stipes of male armature, typical 



V. ri(fa 

 viii. Extremity of stipes of male armature, typical 



V. austriaca. Maj^nified 32 



9, 10. ^ Extremity of stipes of male armature, V. riifa ' times 



( varieties, 



ix, X. Extremity of stipes of male armature, V. auslriaca 

 1 varieties. 



11. Third leg of male Vespa rttfa. 

 xi. ,, „ V. austriaca. 



12 14 1 Dorsal and lateral vieves of base of abdomen, male 



y V. rufa, to show variation in form and mark- Magnified 3 



^'^' ^^- j ings. ^ times^ 



xii xiv 1 l^orsal and lateral views of base of abdomen, male 

 V V. austriaca, to show variation in form and 



^"i' ^^- J markings. 



16. Labium and tongue of female Vespa rufa. 

 xvi. ,, „ ,, V. austriaca. 



17. Tongue (short form) of female V. rufa. 

 xvii. „ (long form) ,, V. austriaca. 



18. Mandible of female Vespa rufa. 

 xviii. ,, ,, V. austriaca. 



Figs. 1, 6, 8. N 



i, vi, viii, xii, xiv. [ 



3 9 13 15 I 



" ' ' ' ■ ^are drawn respectively from the same individuals. 



.. 4,10. f 



iii, ix. I 



v, X. ' 



The series of wasps studied in the preparation of this paper as well as the nest 

 described have been deposited in the Dublin Museum. 



Dublin Museum and Fenagh, Co. Carlo w : 1903. 



Magnified 9 

 times. 



Magnified 6 

 times. 



HELP-NOTES TOWARDS THE DETERMINATION OF BRITISH 

 TENTRltEBINIB/E, &c. (5). 



BY THE E£V. F. D. MORICE, M.A., T.E.S. 



LYDINL 

 In this paper I propose to deal with those genera of Konow's 

 subfamily Lydini Avhich are certainly known to me as British, viz., 

 Lyda., Neurotoma and PamiMlius. How to distinguish these is shown 

 in my Table of Generic Characters (supra p. 188). Also in Lydaihe 

 front tibia is armed beneath (nearer to its ai)ex than its base) with a 

 large spine (as long or longer than the calcaria), which in the other 

 two genera is wanting. 



