LOCUSTIDiG. 861 



ihe antennae; front flat, uprijjbt. Eyes very prominent. Palpi slender; 

 fiftli joint of the maxillary linear, about twice the leiigih of the fourth ; third 

 joint of the labial elongale-fusifunn. AiUeuna; long, slender. Prolborax 

 selliform, slij^hlly contracted and transversely furrowed in the middle; fore 

 border slightly excavated in the midiile and slightly convex on each side; 

 fore border hardly rounded; lateral keels indeterminate; sides with a 

 conical outline. Sternum deeply excavated and forming two acute lobes 

 in each segment. Abdomen slightly keeled above. Oviduct deep, much 

 curved, furrowed on eacb side, about one-third of the length of the abdomen. 

 Legs slender ; four anterior femora unarmed ; hind femora and four anterior 

 tibiae with two rows of minute spines beneath, the former incrassated towards 

 the base; hind tibiae with four rows of minute spines. Fore wings narrow, 

 very much longer than the body, very little longer than the hind wings, 

 rounded at the tips; marginal vein emitting six veiulets to the costa, which 

 is rounded for much more than half the length from the base ; scapular vein 

 emitting nine oblique veinlets to the cosla,of these the three first are forked 

 and the four last are very short; some large areolels between the veinlets 

 which are obliquely retracted from each side of the irregular longitudinal 

 vein which proceeds from the inlerno-medial vein; some smaller areolets 

 formed by a few oblique veinlets between the exlerno-medial vein and the 

 irregular longitudinal vein which proceeds from it. Hind wings ample. 



The structure of the fore wings sufficiently distinguish this genus from 

 Phaneroptera. 



1. SiCTDNA STRIGATA. 



Foein. Laie viridis ; caput Jlavescenle irivittatum ; lahrum alBid'o 



marginatum ; prolhorax villa, fascia maculisque quatuor paltide 



Jlavescentibus ; sternum albido marginatum ; abdomen guttis laterali- 



bus flavescentibusyvittis duabus albidis venlralibus ; alte antic <e striyis 



ohliquis pallide Jlavescentibus ; alee posticce diaphana, striga apicali 



viridi. 



Female. Vivid-green. Head with a pale yellowish stripe on the 



vertex and with two stripes of the same hue on the front; labrum with a 



whitish border. Prothorax with a stripe, an irregular band and four spots 



pale yellowish. Lobes of the sternum with whitish borders. Abdomen 



with yellowish dots along each side and with two whitish stripes beneath. 



Fore wings with pale yellowish oblique subcostal streaks ; hinder veins 



bordered with pale yellowish. Hind wings pellucid, green along the tip of 



the costa. Length of the body 8 lines ; expansion of the fore wingt^ 



28 lines. 



a. Venezuela. From Mr. Dyson's collection. 



Genus 97. VIA DANA. 



Feem. Corpus sat graeile. Caput prothoraci aequilatum,. inter oculos 

 subspinosum; fions plana, erecta. Oculi valde prorainuli. Palpi graciles, 

 setulosi; articulus 3us 4o valde longior; 5us snbclavatus, 3o valde longior. 

 Prothorax disco piano, carinis lateralibus bene deierminaiis, lateribus valde 

 rotundalis, margine postico subrotundalo. Sternum incisum. Cerci 

 breves, lanceolati. Oviductus valde arcualus, abdominis dimidio aequi- 



