LEPIDOPTERA HETEROCERA. 87 



fascia basalt guttisque quatuor luteis, guttis sex posterioribus 

 cyaneis ; alee lurido-vitreee, puncto basali cyaneo, costa oeh- 

 racea ; anticce apice lituraque nigris, vitta postica ochracea, 



Male. Blackish brown. Head with a blue dot between the 

 antennae. Palpi erect, not rising higher than the vertex ; third 

 joint conical, not more than one-fourth of the length of the second. 

 Antennae tawny, very slightly pectinated, simple towards the tips, 

 with a black line above towards the base. Thorax with a blue dot 

 on each side in front, and with a luteous dot by the base of each 

 fore wing. Pectus tawny. Abdomen more than twice the length 

 of the thorax ; first segment with an abbreviated luteous band ; 

 second and third segments with two lateral luteous spots; third, 

 fourth and fifth segments with a blue spot on each side; under side 

 and legs tawny. Wings vitreous, lurid; veins and fringe black; a 

 blue point at the base ; costa ochraceous. Fore wings black towards 

 the lips ; a black mark on the interior angle ; an ochraceous stripe 

 along most of the length of the interior border. Length of the body 

 8 lines ; of the wings 18 lines. 



It has most affinity to 7. vespoides, but differs widely from it in 

 the markings on the body. 



Bogota. In Mr. Birchall's collection. 



ISANTHRENE jEQUALIS. 



Mas. Aurato-flava ; antennae subpectinatcs ; thorax maculis duabus 

 transversis anticis,vittis sex posticis, vitta fusiformi margineque 

 postico nigris; abdomen ochraceum, segmentorum suturis aurato- 

 flavis ; alee vitreee ; anticce macula discali costa margineque 

 interiore miniatis. 



Male. Gilded yellow. Antennae slightly pectinated, except 

 towards the tips. Thorax with two transverse black spots in front, 

 and with six black stripes hindward ; scutellum with a fusiform 

 black stripe ; hjiud border black. Abdomen ochraceous ; sutures of 

 the segments and under side gilded yellow. Wings vitreous, colour- 

 less ; veins black. Fore wings with a spot at the end of the discal 

 areolet; the costa and the interior border red-lead colour. Length 

 of the body 7 lines ; of the wings 14 lines. 



It differs from the other species of Isanthrene by the red spot 

 on the fore wings. 



a. Ega. From Mr. Bates' collection. 



12 



