668. 

 CRYPTUS BELLOSUS. 



The Odyuerus Ichneumon. 



Order Hymenoptera. Fam. Ichneumonida}. 



Type of the Genus, Cryptus viduatorius Fab. 

 Cryptus Fah., Fall., Grav., Curt. — Ichneumon Fab. 



Antenncs inserted in the middle of the face, contiguous, often as 

 long as the body, composed of numerous joints, stout and seta- 

 ceous in the male, the joints gradually decreasing in length 

 from the 4th ; slender and curved in the female, basal joint 

 robust and oval, 2nd and 3rd short, 4th long, the remainder de- 

 creasing in length. 



Labrum nearly concealed under the clypeus, subtrigonate and 

 ciliated with longish hairs, with an elongate-trigonate membra- 

 nous lobe at the centre (2). 



Mandibles short, crossing, rather thick, curved, bilid at the apex 

 (3). 



MaxillcE terminated by a rounded pubescent lobe and a smaller 

 inner one. Palpi long slender pubescent and 5-jointed, basal 

 joint the shortest, clavate, '2nd long and rather stout, clavate, 

 3rd the longest, 4th and 5th not longer than the 2nd and slender, 

 especially the 5th (4). 



Mentum elongate-ovate, the angles excised to receive the Palpi, 

 which are pubescent and 4-jointed, basal joint clavate, 2nd and 

 3rd short obtrigonate, 4th the longest, stoutest at the base and 

 attenuated to the apex. Lip tolerably long, concave and emar- 

 ginate (5). 

 Head transverse, face concave, orbicular-trigonate (1*) .• eyes lateral, 

 vertical : ocelli 3 in triangle at the base of the head. Thorax elon- 

 gate-ovate ; collar narrow : scutel semiovale : metathorax with a 

 tooth at each hinder angle. Abdomen long and slender in the male, 

 subfusifonn, petiole clavate (A) .- stouter and more ovate in the fe- 

 male, petiole long, depressed and very much dilated at the apex : ovi- 

 positor exserted, often as long as the abdomen. Wings ample, su- 

 perior with a quinquangular areolet, marginal cell lanceolate. Legs : 

 anterior the shortest, hinder long and stout: thighs, hinder the stout- 

 est : tibiae spurred at the apex : tarsi o-Jointed, basal joint the long- 

 est : claws and pulvilli small. 

 Obs. The dissections are from Ichneumon obscurus Gmel. ? except- 

 ing fig. A, which is the abdomen of I. titillator Linn. ? 



Bellosus Curt. Guide, Gen. 499. 



Female slate black, thickly and delicately punctured, 10th, 1 1th, 

 and r2th joints of antennae white above ; thorax deep red ; scutel 

 white, the surrounding sutures blackish ; metathorax globose, 

 scarcely tuberculated at the angles, with 2 transverse sutures : 

 base of abdomen more coarsely punctured ; petiole with a minute 

 tooth on each side, 2 apical segments white, as well as the mar- 

 gins of the others beneath when alive : anterior tibiee and tips 

 of thighs ochreous : wings iridescent, the posterior margins 

 fuscous, stigma and nervures piceous. 



In the Author s Cabinet. 



