HEMIPTERA HETEROPTERA. 439 



scutellum roughly and rather thinly punctured. Thorax smooth in front ; 

 horns acute, shorter than their breadth at the base. Scutellum attenuated, 

 acute. Abdomen above black, testaceous along each side; hind angles of 

 the segments successively more elongated and acute, those of the apical 

 segment forming two stout spines. Fore wings reddish, speckled with 

 testaceous along the costa and along the hind border; a testaceous forked 

 vein in the disk ; membrane cinereous, brown towards the base. Length 

 of the body 6 lines. 



The abdomen of this species has four apical spines beside the 

 exterior spines formed by the hind angles of the apical segment. There 

 are so many gradations in the length of these spines that they cannot be 

 considered as a generic character. It much resembles E. melacantha, but 

 the horns of the thorax are shorter and pale. 



a. Constancia. Presented by the Rev. H. Clark. 



106. EdESSA RUDIS. 



Testacea, nigra aspere et sparse punctata; caput viridescente testaceum ; 

 antenna; fulvce; thorax fasciis duabus subconnexis vaUle indeter- 

 minalis saturate viridibus, cornubus acutis latitudine basali valde 

 brevioribus ; scutellum viridi indelerminate trifasciatum ; pectus et 

 venter strigis transversis latis piceis ; abdomen apice bispinosum ; 

 femora nigra ; tarsi anteriores picei ; alee anlicce ferrugineo-rufce, 

 costa venisque ramosis tesiaceis. 



Testaceous. Head thinly and finely punctured, slightly tinged with 

 pale green. Eyes piceous. Antennae tawny ; second joint a little longer 

 than the third. Thorax and scutellum thinly and roughly punctured; 

 punctures black. Thorax with two very irregular and much excavated 

 and partly connected bands of deep green, smooth and transversely wrinkled 

 in front; horns acute, much shorter than their breadth at the base. 

 Scutellum acute, slightly attenuated, with three very irregular green bands, 

 the third apical. Pectus and under side of the abdomen with broad trans- 

 verse piceous streaks on each side. Hind angles of the abdominal segments 

 successively more elongated and acute, those of the apical segment forming 

 two stout black spines. Legs testaceous; femora black; anterior tarsi 

 piceous ; lirst joint of the hind tarsi piceous beneath. Fore wings fer- 

 ruginous-red, very thickly and minutely punctured ; costa and ramose 

 veins testaceous; membrane aneous-brown. Length of the body 10^ 

 lines. 



The abdominal spines are shorter than those of E. polita, which it 

 somewhat resembles. 



a. South America. From the Voyage of H. M.S. Herald. 



107. Edessa reveesa. 



Pallide testaceo-viridis, subtus pallide testacea ; caput transverse striatum ; 

 antennce rufescentes ; thorax dense et subtiliter punctatus, cortiubus 

 subcylindricis anlice sub/lexis latitudine basali multo longioribus 

 apice nigris rolundaiis et rejlexis ; pectus el venter nigra fasciata et 

 univittala ; venter utrinque nigra strigalum et maculalurn ; abdomen 

 apice sexspinosum ; pedes lutei ; alee anticce prasince. 



