﻿LEPIDOPTERA HETEROCERA. 1745 



three white spots. Hind wings darker than the fore wings. Length 

 of the body 3^ lines ; of ihe wings 10 lines. 



(i. Illinois. Presented by E. Doubleday, Esq. 



Page 666, 



Genus CRYASSA. 



Corpus valde robustum. Proboscis brevis. Palpi suberecti ; 

 articulus 2as subarcuatus ; 3us linearis, 2i dimidio longior. An- 

 tennae simplices, validae, corporis dimidio valde lonjjiores. Thorax 

 legulis anticis maximis deflexis. Pedes validi, pilosi ; tibiae pos- 

 ticae calcaribus longissimis. Alse mediocres ; anticse apud costam 

 recta), apice rotundatae, margine exteriore denticulato perubliquo. 



Body very stout. Proboscis short. Palpi nearly vertical ; 

 second joint slightly curved ; third linear, more than half the 

 length of the second. Antennae simple, stout, mnch more than 

 half the length of the body. Thorax vvith the tegulae in front very 

 large, forming a ridge. Legs stout, pilose ; hind tibiae with very 

 long spurs. Wings moderately broad. Fore wings straight along 

 the costa, rounded at the tips, denticulated and very oblique along 

 :ihe exterior border. 



1. Cryassa bifacies. 



Cinereo-viridis, subtus testacea ; caput iestaceum, nigro higuttatum ; 

 palpi testacei, basi nigricante-fusci; thorax nigro subconsper- 

 sus^ maculis duabus anticis nigris ; aire anticce basi pallidiores 

 subglaucescentes^ lineis nigris denticulatis testaceo ex parte 

 marginatisy linea submarginali pallide testacea valde denticu- 

 lata, venis nonnuUis albo punctatis, reniformi angusta vix 

 excavata, pallide lutea intus albo marginata postice nigro 

 maculata^ macula postica lutea ; posticce fuscce^ subtus rufes- 

 cente-stacece lineis plurimis denticulatis maculaqae nigris. 



Cinereous-green, mostly testaceous beneath. Head testaceous, 

 with a black dot on each side of the vertex. Palpi testaceous, 

 blackish brown towards the base. Thorax slightly speckled with 

 black; a black spot on each side in front. Fore wings paler green 

 and with a glaucous tinge towards the base; lines black, denti- 

 culated, irregular, partly accompanied by testaceous lines; submar- 

 ginal line pale testaceous, much denticulated; some white points 



