388 CATALOGUE OF 



Genus 1 10. TORBIA. 



Mas et fcem. Corpus robustum. Capitis cariua lanceolata sulcata, 

 antennurum ariiculo lo aequilata ; irons convexa, inter antennas lanceo- 

 lata. Oculi rotundi, valde prominuli. Palporum articulus ous clavatus, 

 4o duplo longior. Prothoracis discus planus, postice suhlatescens; carinaj 

 laterales bene determinate ; margo posticus subrotundatus, suhelevatus. 

 Mesosternum et metasternum valde incisa. Pedes longi, sat graciles, 

 spinosuli ; femora postica alarum anticarum dimidio longiora. Ala3 anticae 

 lanceolatae, subtilissirne reticulatae, veuulis transversis plurimis, vena ex- 

 temo-media ramis quatuor, lo 4oque furcatis, costa rotundata, margine 

 iuteriore recto. Mas. Lamina supra-analis brevis, triangularis. Oerci 

 subarcuati, fere cylindrici. Styli breves, lanceolati. Fcem. Oviductus 

 arcuatus, brevissimus. 



Male and female. Body stout. Head hardly narrower tban the fore 

 border of the prothorax; keel of the vertex lanceolate, furrowed along the 

 whole length, as broad at its base as the first joint of the antennae ; front 

 convex, lanceolate between the sockets of the antenna?. Eyes round, very 

 prominent. Fifth joint of the maxillary palpi clavate, full twice the 

 length of the fourth. Antenna? long, slender. Prothorax with a flat disk, 

 which widens slightly from the fore border to the hind border; a longi- 

 tudinal impressed line emitting a curved oblique branch on each side for- 

 ward ; lateral keels well defined ; fore border and lateral lobes very slightly 

 concave; hind border slightly convex and elevated. Mesosternum and 

 metasternum deeply notched or forming two lobes. Legs long, rather 

 slender; femora with rudimentary spines; hind femora incrassated for a 

 little more than half the length from the base, rather more than half the 

 length of the fore wings; tibiae with minute spines, those on the hind tibia? 

 on each of the four keels. Wings of equal length. Fore wings lan- 

 ceolate, minutely reticulated; their greatest breadth at somewhat before 

 the middle and about one-fourth of their length ; costa rounded; interior 

 border straight; transverse veins approximate, very numerous, nearly 

 parallel, here and there forked, oblique between the scapular vein and the 

 costa; exlerno-medial vein diverging very slightly from the scapular at 

 somewhat beyond half the length, emitting four branches, of which the 

 first and the fourth are forked; interno-medial and anal nearly straight ; 

 tympanum pellucid, largest in the right wings. Hind wings with a, 

 minutely reticulated apical patch. Male. Supra-anal lamina short, tri- 

 angular. Cerci nearly cylindrical, slightly curved. Subgenital lamina 

 with two short lanceolate styles. Female. Oviduct curved, very short, 

 about one-eighth of the length of the abdomen. 



The triangular form of the keel of the vertex and the peculiar 

 structure of the transverse veins of the fore wings sufficiently distinguish 

 this genus. 



1. TORBIA PERFICITA. 



Mas et foem. Viridis, lutescente varia ; antenna rufce, basi virides ; alee 

 poslicee diaphance, slriga apicali lata viridi* 



Male and female. Green, here and there pale luteous. Eyes tawny. 

 AutenntB red, green at the base. Hind wings pellucid; apical patch and 



