316 ATHALIA ANNUL ATA. 



buds of Clematis erecta, and deposits her eggs therein. 

 In course of time the larvae cause a bladder-like swell- 

 ing, wherein the brown-headed creatures live until 

 they are about half fed, a period extending from four- 

 teen to twenty days ; after this they become external 

 feeders, become of a brownish-green colour, and devour 

 the leaves for fourteen to twenty days more, when, 

 reaching maturity, they drop to the earth, where they 

 pass the winter. 



If these observations refer to lug ens, it is certain 

 that it must have some other food plant besides Cle- 

 matis, since the saw-fly is found in districts where the 

 plant is not native, nor occurs at all. The matter 

 stands in need of re-investigation. 



Lug ens is a not uncommon species in Britain. It 

 has been found in Clydesdale, the midland counties, 

 Worcester, Gloucester, Glanvilles* Wootton, Devon- 

 shire and the London districts. 



Continental distribution : Sweden, Germany, Hol- 

 land, France. 



6. ATHALIA ANNULATA. 



Tenthredo annulata, Fab., S. E., ii, 110, 22; King, Berl. Mag., 



viii, 89, 4 ; Htg., Blattw., 285, 4. 

 Athalia annulata, Ste., 111., vii, 44, 8 ; Dbm., Prod., 66, 12, pi. 2, 



fig. 44 (lar.); Lep., Hon., 24, 70; 



Thorns., Opus., 267, 4; Hym., 



Scand., i, 174, 4; Cam., P. N. H. 



S. Glas., Ill, 131; Evers., Bull. 



Mosc., xx, 34, 3; Kalt., Pfl., 471 ; 



Andre, Species, i, 286 ; Cat., 36,* 7. 

 Hylotoma annulata, Fab., S. P., 23, 26. 



Reddish-luteous. Thorax covered with a dense silky pubescence ; 

 scutellum almost glabrous; the antennae, meso- and metathorax, the 

 upper part of the first abdominal segment, sheath, the base of coxae, 

 apex of posterior tibias and tarsi, more or less black ; mouth pale red. 

 Wings hyaline, the basal half yellowish ; costa luteous at the base, the 

 rest with the stigma and the nervures at the apex black. $ and <^. 



Length 3 3| lines. 



This species differs from all the others in the reddish 

 colour of the mouth. Some of the forms of rosce 



