182 [August, 



HELP-NOTES TOWARDS THE DETERMINATION OF BRITISH 



TENTHREDINID.E, &c. [2,4^ continued). 



SELANDRIADES (conchided) EMPHYTUS and T AXON US. 



T?T THE REV. E. D MORICE, M.A., F.E.S. 



The instalment of these notes which was divided between the 

 March and April numbers of the Ent. Mo. Mag., should (according to 

 its title repeated above) have dealt with the two genera _E'«?/>7/_y/'?/s and 

 Taaconus, and thus brought us to the end of the Selnndrinden. But by 

 some mistake— probably my own — the portion of it relating to Taxonus 

 was omitted when it was printed, and the MS. of it is no longer to be 

 found. The following contains, I believe, the substance of what I 

 wrote as to the latter genus. 



Taxonus, Htg. 

 This genus contains comparatively few European species, and I 

 can only certify three as known to me for British. These are rt^roniwi. 

 Fall., equiseti, Fall., and glnhraius, Fall., which I will now tabulate, 

 and add afterwards a Note as to the two other species described as 

 British in Mr Cameron's Monograph. 



The three species named above may be distinguished very easily 

 as follows : — 



SYNOPTIC TABLE OF BRITISH TAXONUS, Spp. 



1. Hind wing in 9 witli two closed cellules, in $ with "continuous external neu- 



ration " (Ent. Mo. Mag., March, 1903, fig. 6). Bind calearia large— quite | 

 the length of the metatarsus. Body stout and broad. Abdomen banded with 

 red in the middle. Tegulso and labrum black agrorum, Fall. 



— Hind wing with no enclosed cellule in either sex, exactly as in Eniphyttis. 

 Hind calearia small — hardly \ the length of the metatarsus. Body slender and 



elongate .. 2. 



2. Abdomen banded with red. Tegulse and labrum white equiseti, 'EaW. 



— Abdomen entirely violet-black. Tegulro and labrum black ...glabratus. Fall. 



Tn all three species the femora and tibia? are red for the most part, 

 the tarsi dusky or even black. Agrorum is probably the rarest of them, 

 but 1 have found it occasionally here (Surrey) and in the midlands — 

 also in Switzerland and North Germany. (I have seen it visiting 

 Veronica cliamasdrys). All my specimens, British and foreign, appear 

 to have been taken in May. 



Olahratus is one of our very commonest saw-flies, and seems to 

 occur all through the summer (from May to September). Its purplish 

 body, contrasting with the yellowish-red of its legs, will enable the 



