HOMOPTERA. 



65 



Fore tibife much dilated. Wings blackish. I-ength of the body 4^ lines ; 

 of the wings 6 lines. 

 South America. 



Genus PTERYGIA, DeLaporte. 

 Pterygia maculosa. 

 Nigra ; frons lutea ; prothorax scaler, vittis quatuor anticis liiteis, cor- 

 nubus duobus obliquis luteo maculatis apice dilatatis truncalis et 

 subconcavis, carina postica denticulata, cornu conico armata, linea 

 fasciisque luteis ; abdomen rufescens ; tarsi testacei ; al<B antices 

 nigricantes, litura transversa pallida ; posticm subcinerece. 

 Black. Front luteous. Prothorax scabrous, with four luteous stripes 

 in front, and with two obliquely ascending luteous-spotted horns, which are 

 dilated, truncated and slightly concave at their tips ; hind part with irre- 

 gular luteous bands, and with a luteous line along the keel, which is irre- 

 gularly denticulate, and is armed in its middle part with a short conical 

 horn. Abdomen reddish. Tarsi testaceous. Fore wings blackish, with a 

 transverse pale mark. Hind wings grayish. Length of the body 2i lines; 

 of the wings 4^ lines. 

 Amazon Region. 



Pterygia punctosa. 

 Nigra ; prothorax scaber, cornubus duobus obliquis luteo gutlatis apice 

 dilatatis truncalis et subconcavis, carina postica basi denticulata, 

 cornu conico brevissimo armata, apicem versus subconvexa; tarsi tes- 

 tacei; alee anticcE nigrce. 

 Black. Prothorax scabrous, with two obliquely ascending horns, 

 which have a few luteous dots and are dilated, truncated, and slightly con- 

 cave at their tips ; hind part denticulate towards the base, with a very 

 short conical horn in the middle part, beyond which it is slightly convex, 

 Tarsi testaceous. Fore wings black. Length of the body 2^ lines ; of 

 the wings 4 lines. 



This species differs but slightly from the preceding one, and may 

 be merely a variety of it. 



K 



