728. 

 ICHNEUMON AMATORIUS. 



Order Hymenoptera. Fam. Ichneumonidae. 



Type of the Genus, Ichneumon Comitator Linn. 

 Ichneumon Linn., Grav., Curt., &c. 



Antennee inserted in the middle of the face, approximating, not 

 quite so long as the wings in the male, straight, tapering to the 

 base and apex, basal joint the stoutest, oval, 2nd semiorbicular, 

 3rd the longest (la), the remainder short, with a slight ser- 

 rated appearance internally : often shorter, stouter, and curved 

 in the female. 



Labrum transverse, semiovate, the margin ciliated, with a trian- 

 gular membranous lobe in the centre (2). 



Mandibles small, curved and bifid at the apex, pubescent ex- 

 ternally (3). 



Maxilla small, with an internal lobe and an external one larger 

 and orbicular, both ciliated. Palpi long, slender, pubescent and 

 5-jointed, basal joint long and slender, 2nd longer, stout and 

 cleaver-shaped, 3rd as long, 4th scarcely so long, 5th the longest 

 and slenderest (4). 



Mentum obovate-truncate. Lip short, semicylindric rounded, 

 notched in the middle. Palpi pubescent and 4-jointed, basal 

 joint elongate-clavate, 2nd and 3rd stouter, shorter and some- 

 what obovate, 4th considerably the longest, slender linear and 

 curved (5). 

 Head short, transverse, face ovate-trigonate (1 *) •• eyes lateral, elon- 

 gate-ovate : ocelli 3, forming a depressed triangle on the crown. 

 Thorax elongate-ovate : scutel ovate-truncate : metathorax with 

 4 elevated lines united at both ends. Abdomen longish, curved, 

 elliptical, attached by a fat petiole, dilated at the extremity, 2nd 

 segment the longest, apex more or less conical. Wings rvith a long 

 marginal cell ; areolet quinquangular. Legs, hinder the longest and 

 stoutest : coxae, posterior stout : thighs moderate : tibiae, anterior 

 short with a spine at the apex, the others spined : tarsi, hinder the 

 longest, 5-jointed, 4th joint the shortest : claws and pulvilli rather 

 stout. 

 Obs. figures 1 to 5 are from I. luctatorius Linn., and fig. 9 is the ab- 

 domen of I. amatorius in profile. 



Amatohivs Mill.— Curt. Guide, Gen. 484. 112. 



Female black ; antennae curved, base black gradually becoming 

 brown, and at the 8th joint ochreous, 8 following of the same 

 colour : head and thorax thickly punctured and clothed with 

 short brown pubescence ; internal orbits of eyes yellow ; scutel 

 semiovate, of the same colour : scapulae and 2 dots before them 

 yellowish : metathorax roughly, abdomen finely punctured, 2nd 

 segment rufous with a yellow margin, the remainder also mar- 

 gined with yellow, 2nd and 3rd segments rufous beneath : 

 wings yellowish-brown, nervures darker ; stigma, tips of thighs, 

 especially the anterior, tibiae and tarsi bright ochre. 

 In the Author's Cabinet. 



In 1828 I published a fioiire, &c. o{ Ichneumon Atropos (PL 

 231), which appeared to be a typical species, but Gravenhorst 



