390 CATALOGUE OF 



along the anal vein ; veins most strongly marked on the under side ; 

 interior border rounded. Hind wings somewhat longer than the fore 

 wings, folded transversely towards the tips and having the texture of the 

 fore wings along the fore part of the fold, which is angular. 



It differs widely from most other genera of Phyllopterida in the space 

 from the keel of the vertex to the front between the antennae, in the much 

 rounded sides of the disk of the prothorax, in the structure of the fore 

 wings, and in the transverse fold of the hind wings. 



1. ITARISSA LAURINIFOLIA. 



Foam. Viridis ; antewuc fuscee, basi virides ; alts posticce diapkance, 

 apud plicam transversam subtiliter areolatce. 



Female. Green. Eyes and antennae brown, the latter green at the 

 base. Abdomen pale testaceous. Hind wings pellucid ; reins pale green ; 

 some minute areolets along the fore part of the transverse fold. Length of 

 the body 14 lines; expansion of the fore wings 40 lines. 



a. Para. Presented by G. Graham, Esq. 



Genus 113. STEIRODON. 



Gryllus, Linn. Phyllophora, Tkunb. Phaneroptera, Brulle Locusla, 

 Fabr. Steirodon, Serv. Rev. 44; Hist. Orth. 399. 



1. STEIRODON CITRIFOLIUM. 



, Deg. Ins. iii. 437, pi. 37, f. 3. Roes. Ins. ii. pi. 16, f. I Gryllus 



citrifolius, Linn. Mus. Lud. 125; Syst. Nat. ii. 695 Locusta citri- 

 folia, Fabr. Ent. Syst. ii. 33. Thunb. Mem. v. 286 Gryllus (Tetti- 

 gonia) citrifolia, Stall, Saut. et Gryll. pi. 4 a, f. 12 Phylloptera citri- 

 folia, Burm. Handb. Ent. ii. 694 Steirodon citrifoliuin, Serv. Rev. 

 44; Hist. Ort/i.40l. 



a. British Guiana. Presented by Sir R. Schomburgck. 



b. Brazil. From Mr. Stevens' collection. 



c. Brazil. 



2. STEISODON SUBPRODUCTUM. 



Foem. Testaceum ; verticis carina plana, marginata; labrum album; 

 prolhoracis discus longiusculus, rugulosus, linea longitudinali 

 lineisque quatuor transversis impressus, carinis lateralibus albidis 

 crenulatis, margine postico valde rotundato ; alee anticce longi- 

 fusiformes ; alee posticce diaphance, longiores, slriga apicali lata 

 testaced. 



Female. Testaceous, smooth. Head as broad as the fore border of 

 the prothorax; keel of the vertex conical, shallow, flat, with a whitish 

 elevated border, severed rather widely from the conical elongation of the 

 front; front flat ; labrum white. Eyes elliptical, prominent. Prothorax 

 elongate; disk flat, rugulose, widening hindward, with one longitudinal im- 

 pressed line and four transverse impressed lines; third transverse line very 

 deeply bent hindward ; fore border very slightly excavated ; sides with an 

 irregularly conical outline ; hind border much rounded ; lateral keels 



