LYCHNUCHOIDES.— TISIAS. 613 



the lower for some distance along the basal portion of the first median branch, just 

 beneath which is a longitudinal streak. 



The fore wing is figured on Tab. CIV. fig. 14. 



1. Lychnuchoides saptine. (Tab. CIV. figg. 12-15, e .) 



Hesperia saptine, Godm. & Salv. P. Z. S. 1879, p. 155 \ 



Alis fuscis, stigraate paulo obscuriore, anticis fascia lata transversa a costa per cellulam angulum analem versus 

 extendente, marginibus (prsesertim interne) valde irregularibus, flavo-hyalinis ; posticis margine costali 

 usque ad apieem ochraceo : subtus ut supra, sed ad apicem grisescentioribus, posticis rufo-brunneo et griseo 

 distincte nubilatis. 



$ mari similis. 



Hab. Costa Rica, Irazu, Rio Sucio (Rogers l ) ; Panama, Volcan de Chiriqui (coll. 

 Standing er). 



We have six specimens of this species from Costa Rica, and Dr. Staudinger has lent 

 us an example of it from Chiriqui. L. saptine closely resembles Lychnuehus celsus 

 (Fabr.), from S. Brazil, but it is much larger and has a more irregular yellow band on 

 the primaries, the apical portion of the costal margin of the secondaries is also yellow, 

 and these wings beneath are differently coloured. 



L. ozias (Hew.), from Brazil, is a nearly allied form. The type of L. saptine is 

 figured, also the genitalia, for which see Tab. CIV. fig. 15. 



TISIAS, gen. nov. 



The species we refer to this genus are of large size, with very long antennae, with 

 long crook, a short terminal joint to the palpi, a very stout body, and a conspicuous 

 treble brand on the primaries in the male. They have hyaline spots on both wings. 

 We take Proteides myna, Mab., from Chiriqui, as the type, the genus also including 

 Cobalus quadratics, H.-S., and at least one other South-American insect *. The form of 

 the antennae brings it near Themesion, Turesis, Sec, while the brand is very like that 

 of Aides. 



The antennae are half or more than half the length of the costa, and have a 

 moderately long club, terminating in a long crook. The third joint of the palpi is 

 very short and bluntly conical. The primaries are rather elongate, somewhat pointed 

 at the apex, arched on the costa at the base, and almost straight on their outer margin 

 to near the tip ; the cell is less than two-thirds the length of the costa ; the disco- 

 cellulars are strongly oblique, the upper one about three times as long as the lower, 

 the latter much shorter than the third median segment ; the lower radial is much 

 depressed at the base ; the first branch arises from the middle of the median nervure, 

 the second a little before the lower angle of the cell, the latter being strongly curved 



* In Dr. Staudinger's collection there is a very distinct unnamed species belonging here ; it is from Merida, 

 Venezuela. 



biol. cente.-ajviee., Rhopal., Vol. II., February 1901. 4 k 



