LEPIDOPTERA HETEROCERA. 211 



larger than the first patch of the fore wings. Length of the body 

 6 lines; of the wings 18 lines. 



Bogota. In Mr. Birchall's collection. 



Melanchroia junctura. 



Mas. Nigra ; caput albo bimaculatum, subtus album ; palpi por- 

 recti; antenna sat late pec tinata ; abdomen maculis lateralis 

 bus albidis ; pedes albo vittati ; alee anticce elongates, striga 

 discali obliqua e maculis duabus subconnexis flavo-albis ; 

 posticce apud costam albce, vittis duabus diffusis flavo-albis . 



Male. Black. Head white beneath, and with a white spot on 

 each side in front. Palpi porrect, extending somewhat beyond the 

 head; third joint elongate-conical, less than half the length of the 

 second. Antenna? rather broadly pectinated. Abdomen not extending 

 beyond the hind winijs ; each segment with a diffuse whitish spot 

 on each side ; under side white, except the hind borders of the seg- 

 ments ; apical appendages rather large. Legs striped with white. 

 Wings elongate. Fore wings with an oblique yellowish white streak 

 in the disk, consisting of two elongated nearly connected spots ; 

 under side with a white diffuse forked streak proceeding from the 

 base. Hind wings white on the costa along more than half the 

 length from the base, and with two yellowish white diffuse stripes ; 

 first stripe extending in the disk to nearly three-fourths of the 

 length ; second near the interior border, continued along the hind 

 part of the exterior border; under side white, with a broad black 

 marginal band, which is excavated in the middle of its inner side. 

 Length of the body 5 lines ; of the wings 16 lines. 



a. Bogota. From Mr. Stevens* collection. 



a Melanchroia lutetvena. 



Mas. Nigra ; thorax vittis duabus abbreviatis ochraceis ; abdomen 

 subtus pectuxque alba ,* pedes albo vittati ; alee anticce macula 

 discali cinerea subtus alba^ venis luteis ; posticce macula magna 

 elliptica, subtus albce nigro late marginatce. 



Male. Black. Thorax with a short ochraceous stripe on each 

 side. Pectus and under side of the abdomen white. Legs with 

 white stripes. Win^s elongate. Fore wings with a cinereous discal 

 spot, which is white and larger on the underside; veins luteous. 

 Hind wings with a large elliptical white spot in the disk; under side 



