PERILISSUS. — XILGIDA. ;U 7 



the hind coxa? internally, and apices of their femora, hiack. 

 Wings slightl}'^ clouded ; areolet wanting, but with its outer and 

 lower nervures traceable, tliough entirel}^ fenestrate, and tlie inner 

 continuous with the straight second recurrent ; radius sinuate 

 before apex : nervellus extremely strongly postt'urcal and inter- 

 cepted a little above its centre. 



Lenr/fh 9 niillim. 



Bengal : Pusa, iii. 07. 



Tf/pe in the Pusa collection. 



The lack of an areolet places this species in the subgenus 

 Spaiiotecnns. 



Genus TILGIDA, Cam. 



Tlhjida, Cameron, Manch. Mem. 1900, p. 108. 

 Gexotype, T. allntarsis, Cam. 



Eyes very large, with the inner orbits slightly but distinctly 

 convergent below, vertical orbits striate; clypeus small, apically 

 transverse and shorter than the labrinn ; mandibles curved, basallv 

 subtriangular, apically constricted and there obtusely bidentate; 

 palpi somewhat elongate. Antennae elongate, slender, and wit h 

 a pale baud. Thorax with pale markings ; mesonotuin with its 

 discal depression extending beyond the centre to the strong! v 

 elevated apical lobe ; metathorax elongate, evenly convex througli- 

 out, with no carinse ; spiracles oval and situated in a concavity 

 halfway between the centre and apex. Scutellum large, round! v 

 and but sliglitly convex. Abdomen elongate and slender ; petiole 

 long and neither stout nor apically curved ; the lirst longer than 

 the second segment, with spiracles small, circular and slightly 

 beyond the centre; gastrocoeli small and indistinct tliough dis- 

 tinctly and deeply impressed. Legs elongate and slender, with 

 the hind coxie large; tarsi spinose, with their claws curved,, 

 elongate and basally subincrassate ; front tarsi basally sinuate, 

 with their calcaria curved and pilose. Wings with no areolet ; 

 the single submarginal nervure incrassate and very short, one- 

 fourth of the length between it and the emission of the second 

 recurrent nervure ; lower basal emitted from the median a little 

 beyond the upper basal nervure. 



llam/e. Assam. 



This genus is at present known in the niale sex alone. 



Its author says {loc. cit.) "In the form of tlie abdomen it does 

 not differ mucli from Mesokjdus,* but in other respects it differs 

 complerely from that and from any known genus of the Titv- 

 PHOXJDES. It is undoubtedly nearly related to Baliena, as is 



* Tliis inii>t 1)0 iiocpptcd \\\\\\ reserve, since Cameron was al that tinii 

 describing species oi Liasonold (L'i.mim.in.i:) as Me.^olcptus'. — C. M. 



