1670 Insects. 



ruginous. Abdomen lanceolate, the margins of the segments rufo-pi- 

 ceous. 



Var. 2. — Abdomen with the second segment red at the base. 



Var. 3. — Abdomen, the margin of the first, the whole of the second, 

 and the base of the third red. 



This species is rare. I have taken both sexes at Highgate, but not 

 in any numbers. Mr. Kirby has described his insect as a female, 

 which is certainly a mistake in printing, the original specimen in the 

 Kirbyan collection being ticketed as a male. The red-belted variety 

 described, is in my collection, and the only one I have seen ; it was 

 captured by Mr. S. Stevens, at Bexley, Kent, in the beginning of 

 April, which is the usual time of its appearance. It also occurs in the 

 New Forest, Hants. 



Sp. 8. Andrena ferox, Smith. 



Male. — (Length 4j lines). Black, a few pale fulvous hairs on the 

 face ; the clypeus very bright and shining, with large distinct punc- 

 tures ; the antennae nigro-piceous, as long as the head and thorax ; 

 the mandibles long, bent, and acute at their apex, having a short acute 

 tooth at their base beneath ; the head is one-third wider than the 

 thorax. Thorax, the tegulae piceous, wings hyaline, their apical 

 margins slightly clouded, the nervures testaceous; the apex of the 

 anterior and intermediate tibiae, the whole of the posterior pair, and all 

 the tarsi pale rufous. Abdomen lanceolate, the margin of the first and 

 second segments are rufo-piceous ; beneath, the second and third seg- 

 ments are rufo-piceous. 



This is one of the most remarkable insects which I have seen be- 

 longing to the genus : its large disproportionate head, and its curved 

 long mandibles armed at their base, render it a most ferocious-looking 

 insect ; its female is not known. It is very distinct from A. spinigera ; 

 its tooth, or spine, is not more than half as long as in that species, and 

 its legs are of quite a different colour. This species was first cap- 

 tured by Mr. Devignes near Windsor, and to that gentlemen I am 

 obliged for my specimen ; the science is thus again indebted to Mr. 

 Devignes, who has, by his labours, in several instances, added nume- 

 rous rare and interesting insects to the British Fauna. 



(To he continued.) 



