IQQ [December, 



Addition of two species to the British list of TenthredinidcB. — 



Tenthredo moniliata, Klug (Blattwespen, No. 153). — This fine nddition to our 

 list was taken by me at Eannocli in June last. It has the antenna) entirely black, 

 the third, fourth, and fifth abdominal segments red, and the mouth, collar, and spots 

 at the base of the hinder feet ■whitish-yellow. 



Nematus qiiercils, Hartig (Blatt-und Holzwespen, p. 188). — I hare taken several 

 specimens of this pretty species in the neighbourhood oi Q-lasgow, on birch and oak, 

 at the end of May, and again in August. It is black, with the middle segments of 

 abdomen red, and the feet red, white and black. — P. Cameeon, Jun., 136, West 

 Graham Street, Q-lasgow : lith October, 1873. 



Hints as to the habits, ^^c, of the British species of Sesia. — The garden species, 

 myopiformis and tipuliformis, are so well known as not to require special mention. 



S. culiciformis is rather pecidiar in its habits, the insect emerging from the 

 pupa about 10 a.m., at which time it is to be taken drying its wings upon the stumps 

 of birch trees that hare been cut down for two years. After its wings are dry, it 

 goes in search of a new locaUty, where the trees have only been cut down for a few 

 months ; and, on looking towards the sky after about two o'clock, the insects may 

 be seen flying round about and across in all directions. I once caught about twenty 

 in a couple of hours in Tilgate Forest, including a S with a white belt in copula with 

 an ordinary red belted ? : this pair I swept into my net (which was attached to a 

 pole about 12-feet high) while striking at a specimen on the wing. 



S. fnnniciformis is common in Hackney marshes, and is to be bred freely by 

 cutting off dead portions of osiers. 



S. chrysidiformis is to be found feeding in the common dock or sorrel growing 

 upon the undercliff in the Warren at Folkestone. When searching for the larvae of 

 this species, it is best always to select those plants which are sickly, as they are 

 tolerably sure to contain a larva, which, feeding in such small roots, usually pre- 

 vents the plant throwing up a blossom. 



S. ichneumoniformis is common in the Isle of Wight at Slianklin, Ventnor, 

 Black Gang Chine, Freshwater, and elsewhere, also at Folkestone ; it feeds in the 

 Birds-foot trefoil {Lotus corniculatus) , and is very difficult to find in the lai-val state, 

 owing to the fond-plant being so abundant. The plan which after itiuch labour I 

 have found the best, is to select the largest and strongest plants growing in broken 

 ground, where the roots lie exposed by the cracking of the cliff ; and in such roots 

 the larva or pupa is sometimes to be found. 



S. cynipiformis is common in Darenth Wood and elsewhere amongst oak, and 

 may be found sunning itself upon the tree trunks. The larva feeds between the 

 bark and solid wood, and spins a small tight cocoon before changing to pupa : it 

 may be found by wrenching the bark off. 



. 8- philanthiformis. — I found the larva of this species for the first time on the 

 24th of May, 1870, at Onchan, near Douglas, Isle of Man, bred my first specimen on 

 the 10th June, and caught my first on the l7th June. This species being so small 

 is very difiicult to take on the wing. The best plan is to watch a flat piece of rock 

 exposed to the sun, when the little creatures may be seen to settle upon it ; if the 

 collector is not very quick they wUl be gone, without the eye being able to follow 



