306 ATHALIA ANCILLA. 



1. ATHALIA ANCILLA. 



Atkalia ancilla, Lep., Mon., 22, 63 ; Ste., 111., vii, 43, 5. 



glabricollis, Thorns., Opus., 268, 5 (1870); Hym. Scand., 



i, 171, 1; Cam., Proc. N. H. S. 

 Glas., iii, 129; Fauna, 16, 1; 

 Andre, Species, i, 285 ; Cat, 36,* 

 6. 



rosa, Cam., Sc. Nat., ii, 197199 (lar.). 

 Phyllotoma annulata, Fall., Mon., 28, 3. 



Tenthredo liberta, Klug, Germar's Beise nach Dalmatien, 257, 



333. 



Smooth, shining, glabrous, reddish -luteous. Head, antennae, meso- and 

 metanotum, the apex of posterior tibiae and the tarsal joints at the apex 

 (the four anterior slightly), with the apex of sheath, black. Mouth and 

 palpi white ; the antennae from the second joint are pale testaceous on 

 the underside. Wings hyaline, yellowish at the base ; the nervures and 

 costa at the base are yellowish, for the rest black ; stigma black ; tegulse 

 luteous; blotch large, clear white. ? and <^. 



Length 3| 4 lines. 



Larva. Head small, partly retracted into the second 

 segment, deep shining black and covered with a short 

 pile. Legs black ; the abdominal ones with the tips 

 white and the anal (which are small) entirely so. The 

 upper part of the body is lead coloured ; below the 

 spiracles it is pale white. The skin is much wrinkled 

 and folded, and beset with small tubercles. At the 

 last moult the mouth is whitish, and the body becomes 

 of a pale slate colour. Length 6 to 7 lines. 



The pupa is pale white. 



The larva is of the same habits as its better known 

 congener Spinarum, and affects like it cruciferous 

 plants, Erysimum, Sisymbrium, &c., and, as will be 

 seen from the description, does not differ materially 

 from it. I have met with full-fed larvae at the end of 

 July, and from some collected then have reared the 

 perfect insects at the beginning of September, but 

 others belonging to the same batch did not change till 

 the following spring. Having only once found the 

 larvse I cannot say whether they are double brooded 

 or not, nor if they are injurious to turnips. 



Glabricollis is not an uncommon insect (commoner, 

 I should say, than spinarum) in June. I have taken it 



