423. 

 FCENUS ASSECTATOR. 



Order Hymenoptera. Fam. Evaniidae. 

 Type of the Genus, Ichneumon Asseclator Lijin. 

 F(ENUS Fab.,Lat.,Jur., Panz.,Curt. — Gasteruption Lat. — Ichneumon 

 Linn., Ssc 



Antennce inserted in front of the face, as long as the thorax, 

 straio'ht, filiform and velvety 5 13-jointed in the male, 14-jointed 

 in the female (19), basal joint ovate, a little the stoutest, 2nd 

 the smallest, cup-shaped, 4th a little longer than the 3rd, the 

 remainder decreasing in length to the apical joint which is as 

 long as the 4th and linear-ovate. 



Labrum membranous, broad ciliated and deeply notched in the 

 centre, from vi'hence arises a tongue-shaped lobe, hairy towards 

 the apex with a large triangular membrane beneath (2). 

 Mandibles acute at the apex, oblong, truncated obliquely, one 

 having a very large triangular tooth on the inside (3). 

 MaxillcE terminated by a large oval pilose lobe, with a narrow 

 ciliated one on the inside. Palpi moderately long, slightly pilose 

 and 6-jointed, 3 basal joints the stoutest, oblong, the 3rd being 

 a little longer than the 1st and 2nd; 4th the longest, clavate, 

 5th and 6th a little shorter, the latter linear-conic (4). 

 Mentum oblong, narrowed and rounded at the base, the anterior 

 angles truncated, and producing large fleshy scapes to which are 

 attached the Palpi, they are rather long pilose and composed of 

 4 clavate joints, the 3rd a little the shortest, 4th the slenderest, 

 linear-conic. Lip strong, shorter than the mentum (5). 

 Head subovate or orbicular, attached by an elongated neck. Eyes late- 

 ral ovate. Ocelli 3 in triangle on the crown of the head. Thorax 

 narrow and compressed. Abdomen very long compressed narrow and 

 clavate, slightly arched and very slender at the base, composed of 8 

 joints. Ovipositor long. Wings short, marginal cell large, 2 large 

 suhmarginal cells and 3 irregular areolets in the centre : inferior with 

 a few very fine nervures. Legs rather short. Coxae ; posterior large 

 and contiguous ; trochanters long . Thighs j hinder pair the stoutest. 

 Tibiae short, posterior clavate with a small spine, anterior with a 

 ' curved one near the apex. Tarsi 5 -jointed, hinder pair the stoutest, 

 basal joint the longest, 4th small. Claws and Pulvilli minute (8, 

 fore leg). 



AssECTATOR Linn. Foun. Suec.407. \627.—Curt. Guide, Ge??.483. 2. 

 In the Author's and other Cabinets. 



These remarkable insects are by no means common : I had 

 not seen one alive for many years until last June, when I took 



