112 CATALOGUE OF 



Genus 12. ACOENITES. 

 Acoenites, Grav. 



1. ACOENITES ABATOR. 



Acoenites arator, Grav. iii. 813, 5. 

 Ichneumon arator, Rossi, Faun. ii. n. 778. 



In Mr. Desvignes' collection. 



Genus 13. XORIDES. 



Subgenus 1. XYLONOMUS. 



Xylonomus, Grav. 



1. Xylonomus parvulus. 



Ichneumon prascatorius, Fab. Ent. Syst. ii. 139, n. 27. Thunb. 



Ich. n. 46. 

 Cryptus praecatorius, Fab. Piez. 72, n. 11. 

 Xorkles praecatorius, Lamarck. \35. 

 $ . Xylonomus parvulus, Grav. iii. 825, 4. 



2 . Xylonomus praecatorius, Grav. iii. 841, 12. 



£ , ^ • I n Mr. Desvignes' collection. 



2. Xylonomus rusttcus, n. s. 



Abdomine nigro. Pedibus anterioribus testaceis, poslicis nigris ; 

 coxis elongatis badiis supra nigris, macula mediand cas- 

 tanect. Aculeo longitudine corporis. 



Head black ; mouth between the mandibles with short reddish 

 hairs. Antennas half the length of the body, recurved at the apex. 

 Thorax cylindrical. Metathorax with two teeth on each side, one 

 more prominent than the other ; the central space, with hexagonal 

 divisions between, punctate. Wings smoky hyaline ; costa, stigma 

 and scales fuscous; the base testaceous. Legs: the foui; anterior 

 ones testaceous; coxae chestnut; the base of the femora slender, 

 compressed, much dilated at the apex ; the tibiae, as it were, com- 

 posed of two joints, the base being very narrow, aud then abruptly 

 enlarged, and near the base of this part is an arcuated notch on the 

 under part; the hinder pair of coxae elongate, deep chestnut beneath, 

 black above, with a central spot, somewhat of a lighter colour : in 



