512. 

 ROGAS BALTEATUS. 



Ordek Hymeiioptera. Fam. Ichneumonidie. 



Type of the Genus, Bfissus testaceus Fab. 

 RoGAs Nees, Hal., Curt. — Bassus Fab. — Bracon Spin. 



Antenna; inserted near the middle of the face, as long as the 

 insect, filiform, pubescent, composed of numerous oblong joints, 

 gradually decreasing in size to the apex ; basal joint the stoutest, 

 2nd the smallest, subglobose, apical joint conical (1, the base 

 and apex). 



Labrum rather large, subovate, with a membranous pubescent 

 triangular lobe at the apex (2) . 



Mandibles small, trigonate and bifid, pilose outside (3). 

 Maxillce with a large lobe on the inside, and another rounded 

 and hairy one above it. Palpi long pubescent pilose and 

 6-jointed, basal joint minute, 2nd twice as long and oblong, 

 the remainder long, 3rd a little the shortest, 4th the longest, 

 the apical joint subfusiform (4). 



Mentum ovate -cordate. Lip large and rounded. Palpi rather 



long, very hairy and 4-jointed, basal joint small, the remainder 



rather thick and of equal length, suboval, the terminal joint 



conical at the apex (5). 



Head small, transverse, margined behind, face subtrigonate : eyes 



leather small, ovate and lateral : ocelli 3, in triangle on the crown. 



Thorax oblong : postscutellum subquadrate and somewhat depressed. 



Abdomen attached by so short a peduncle as to appear nearly sessile, 



elliptical, \st and 2nd joints large, Srd generally a little shorter (6 $ 



profile) : ovipositor short and exserted, the valves rather broad and 



obtuse (o) . Wings pubescent, superior with a large marginal and 



3 submarginal cells, 2nd the smallest and nearly quadrate ; posterior 



loith 2 transverse nervures. Legs, posterior the largest : tibia; 



simple, spurred: tarsi 5-jointed, basal joint the longest, 4th the 



smallest : claws minute ; pul villi distinct. 



Obs. R. bicolor Spin, was the species dissected and described. 



Balteatus Hal. MSS. — Curt. Guide, Gen. 555. 



Opake ferruginous-ochre, pubescent : antennae longer than 

 the insect, black as well as the head, the hinder margin of the 

 eyes ferruginous : Thorax inclining to rufous, black beneath, a 

 black dot on each scapular and a spot of the same colour at the 

 apex of the scutellum ; postscutellum coarsely and tliickly 

 punctured, black, with a bilobed rufous spot behind : abdomen 

 punctured, with an elevated line down the back, the apical 

 portion black, excepting the base of the 3rd segment : nervures 

 brown, base of stigma ochreous : tips of hinder thighs and tibia; 

 and all the tarsi brown, the latter black at the apex. 

 In the Cabinet of Mr. Haliduy. 



This pretty genus contains a considerable number of species, 

 many of which have been added by Mr. Haliday, who has 

 kindly presented lue with several, together with a list of them. 



