opiiiojf. 365 



•elucidation of our species, though tlie difficulty of iiuding constant 

 characters in those of this genus has ahva3's been acknowledged, 

 and has been by no means minimised by recent authors. Cameron's 

 descriptions are none too explicit ; Smith's are inadequate ; and 

 tije old species of Motschulsky and especially of Fabricius are 

 nowadays altogether unintelligible, and very probably assignable 

 to other genera. 



259. Ophion luteus, L. 



Ichneumon luteus, Linnseus, Syst. Nat. ed. 10, 17r^8, p. o6G; Ber- 



lieuout, Outl. Nat. Hist, lirit. i, 1769, p. 1(J6; Fabricius, Syst. Eiit. 



1775, p. 341; id. Sp. lus. i, p. 43o; id. Mant. Ins. i, p. 1^68; id. 



Ent. Syst. ii, p. 178; Foureroy, Eut. Paris, ii, 1785, p. 400. 

 Ichneumon vinulte, Scopoli, Ent. Carn. 1763, p. l'8U ; Christ, Naturg. 



Ins. 1791, p. 367. 

 Ichneumon fulvus, lietzius, Geu. Spp. Ins. 1783, p. QS. 

 Ophion luteus, Fabricius, Ent. Syst., Suppl. 1798, p. 235 ; id. Syst. 



Piez. 1804, p. 130 : Gravenhorst, Ichn. Eur. iii, 1829, p. 692 ; 



Eatzeburg', Ichn. d. Forst. i, p. 102 ; ii, p. 79 ; iii, p. 80 ; Ilohngren, 



Sv. Ak. Handl. 1858, p. 12 ; Vollenhoi-eu, Pinac. pl.x.wiii, fig-. 1 ; 



Bridgman & Fitch, Entom. 1884, p. 178; Thomson, Opusc. Ent. 



xii, 1888, p. 1190; Brauns, Arch. Nat. Meckl. 1889, p. 90 (c? ? ). 

 Joppa lutea, Panzer, Krit. Revis. ii, 1806, p. 66. 

 Ophion vinulce, Dale, Ann. Nat. Hist, vii, 18J4, p. 60. 



cT 2 . A somewhat large, testaceous-red and nitidulous species. 

 Head distinctly constricted posteriorly ; orbits broadly flavescent, 

 ■ocelli subcontiguous to the eyes, cheeks short. Thorax without 



distinct flavous markings ; 

 metathorax with the ante- 

 rior transverse carina very 

 distinct, the posterior some- 

 what strong laterally but 

 centrally obsolete and there 

 traversed by two longitu- 

 dinal carina) which approach 

 the anterior carina. Abdo- 

 men sometimes apically in- 

 fuscate ; basal segment not 

 constx'icted centrally, the 

 postpetiole not very dis- 

 tinctly discrete ; second dis- 

 tinctly impressed at thyridii, 

 Fig. V)^.— Ophion hi/ru,, L. ^vith its lateral spiracles not 



prominent. Le^/s with tibial 

 -calcaria of unequal length. Wings with stigma testaceous and 

 nervures black ; nervelet usually elongate ; basal nervure not quite 

 continuous through median, and the nervellus intercepted at its 

 <;eutre. 



Lenfjth 15-20 millini. 



Tibet : Gyangtse, 13,000 ft., vi. 04 (//. J. Walton) ; Pl'xjab ; 



