270 CATALOGUE OF 



GeimsGERBA. 



Mas. Corpus vix robustum. Proboscis brevis, gracilis. Palpi 

 porrecti, laeves, graciles, caput non superantes ; articulus 3us mini- 

 mus. Antennae breviusculae, subserrata?, setulosae. Abdomen alas 

 posticas non superans, lateribus subfasciculatis ; fasciculus apicalis 

 parvus. Pedes laeves, breves; tibiae posticae calcaribus duobus parvis 

 apicalibus. Alae auticae latae, apice rotundatae; margine exteriore 

 convexo vix obliquo. 



Male. Body hardly stout. Proboscis short, slender. Palpi 

 porrect, smooth, slender, not extending beyond the head ; third 

 joint extremely minute. Antennae setulose, rather short, very 

 minutely serrated. Abdomen not extending bevond the hind wings, 

 with minute tufts along each side ; apical tuft small. Legs smooth, 

 short, moderately stout ; hind tibiae with two short apical spurs. 

 Wings broad. Fore wings much rounded at the tips; exterior 

 border convex, hardly oblique. 



Gerba quadrifasciata. 



Mas. Nigro-fusca ; corpus ochraceum ; abdomen subtus nigrum ; 

 alee anticce fasciis duabus flavis, la recta subobliqua % 2a 

 arcuata submarginali ; posticce macula costali flava. 



Male. Blackish brown. Body and palpi ochraceous. Pro- 

 boscis tawny. Antennae black. Abdomen black beneath, except 

 the apical tuft. Fore wings with two yellow bands ; first straight, 

 slightly oblique ; second curved, submarginal, narrower towards the 

 interior angle, which it does not reach. Hind wings with a yellow 

 costal spot corresponding to the first band of the fore wings. Length 

 of the body 5 lines; of the wings 14 lines. 



a. Oajaca, Mexico. From M. Salle's collection. 



Genus CASTABALA. 



Mas. Corpus sat robustum. Frons convexa. Proboscis brevis. 

 Palpi breves, validi, pilosi, oblique ascendentes ; articulus Bus 

 conicus, minimus. Abdomen alas posticas superans; sexualia 

 longiuscula. Pedes validi, laeves. Alae anticae longae, latiusculae, 

 apice valde rotundatae, margine exteriore convexo perobliquo. 



Male. Body rather stout. Front convex, prominent. Pro- 

 boscis short. Palpi stout, pilose, obliquely ascending, not rising so 

 high as the vertex; third joint conical, very minute. Abdomen 



