nf new species of Tenthredinida, S^'c. 387 



and eighth segments yellow, the posterior margin of the 

 latter black ; the apical spine yellow. 



Hob. — Hiogo. 



This species closely respmbles Sirex Jlavicornis of North 

 America ; it differs from that insect in some important 

 particulars, — the yellow band, in the American species, 

 occupies the seventh and half of the eighth segment; 

 this insect has the apical margin yellow. 



Fam. ICHNEUMONID.E.* 

 Genus Ichneumon, Linn. 



V 



1. Ichneumon generosus. 

 Male. — Length 1\ lines. Black, scutellum pale, abdo- 

 men red, black and yellow. Head: the face and antenna;, 

 mandibles and palpi pale yellow. Thorax : the tegulaj 

 and a short line in front of them, the scutellum and legs, 

 yellow ; the posterior coxib and trochanters beneath, and 

 the apex of the femora and tibia;, black ; the Avings flavo- 

 hyaline, the nervures fuscous, with the stigma yellow. 

 Abdomen : the first segment, the basal half of the third, 

 and the fourth and fifth segments, black ; a yellow spot 

 on each side of the apex of the first segment; a broad 

 yellow band on the third segment notched in the middle ; 

 beneath, the second, third and fourth segments reddish- 

 yellow. 



2. Ichneumon corjnatorius. 



Female. — Length 1 1 lines. Black, the scutellum white ; 

 the antennre have the joints nine to fourteen white beneath ; 

 the face has a narrow Hne at the inner margin of the eyes 

 towards their summit yellowish-white ; the anterior tibiiiB 

 in front and the tips of the femora of the same colour ; the 

 wings dark fuscous. 



Male.— Length 9^ lines. Black : the fiice, below the 

 antenna, and a narrow line at the inner margin of the 

 eyes, an abbreviated line behind the eyes at the base of 

 the mandibles and the palpi, white. Thorax : the lateral 

 margins of the prothorax above, the outer margin of the 

 tegulffi, a spot beneath the wings, the scutellum, and a 

 minute spot on each side of the metathorax posteriorly, 

 white ; the anterior and intermediate coxte and trochanters 



All the Ichneumonidcs are from Hiogo 



