hemipteea hf;teroptera. 553 



black, slender, slightly pubescent, not move than half ihe length of the 

 body ; first joint yellowish, not extending to the front of the head ; second 

 extremely short; third much longer than the fourth, which is longer than 

 the fifth. Thorax with a smooth pale yellow dot on each side of the fore 

 part of the disk; sides pale yellow in front of the hind angles, which form 

 two black long acute slightly ascending and very stout spines. Scutellum 

 attenuated, extending somewhat beyond the angle of the corium, with two 

 pale yellow marginal stripes, which are abbreviated near the pale yellow 

 tip. Abdomen beneath with a stripe of black dots; two stout apical spines, 

 which are black towards their tips. Legs luteous, slender. Fore wings 

 along the costa reddish and towards the tips luteous, with a smooth pale 

 yellow subcostal dot near the tip; membrane hyaline. Length of the body 

 4 lines. 



In structure it resembles M. Ypsilon, the type of all of the numerous 

 groups which are included in Mormidea ; some of these groups have been 

 formed into genera. 



o. Santarem. From Air. Bates' collection. 



Mormidea semialba. 



Albida, conferlissime et sublilissime rufo-punclala, subtus alba ; caput 

 nigricante punclaliun, anlice quadratum ; antenna arliculis Ao et bo 

 dimidio apicali piceis ; thorax antice albo marginatus, cornubus 

 longis latis subrecurvis subascendenlibus ; scutrllum apice rotundalum 

 glabrum ; membrana diaphana, striga apicali nigra. 



Whitish, oval, very thickly and minutely punctured ; punctures red ; 

 under side, rostrum, antenna; and legs white. Head elongate, quadrate in 

 front, with blackish punctures. Eyes piceous, rather large and prominent. 

 Antenna', slender; secoud joint much longer than the third ; fourth and 

 fifth piceous for half the length of the tips; fourth nearly as long as the 

 second ; fifth shorter. Tborax and scutellum with a whitish impunctate 

 line. Thorax with a white smooth rim along each side in front of the 

 horns, which are long, broad, acute, obliquely ascending and recurved. 

 Scutellum attenuated towards the tip, which is rounded and smooth. Legs 

 slender. Membrane of the fore wings pellucid white, with a blackish 

 apical streak. Length of the body 4 lines. 



The structure of the horns of the thorax in this species distinguish it 

 as the type of a group in the genus. 



a, b. Constancia, Rio Janeiro. Presented by the Rev. II. Clark. 



Mormidea basalis. 



Cervina, subovata, dense et sublilitcr fitsco conspersa ; caput production, 

 lobo medio lobos lalerales perpaullo supcrante ; antenna texlacc<c, cor- 

 poris dimidio breviores, apices versus nigra:; thorax lateribus callisque 

 duobus parvil antemediis teitaceis ; pedes testacei ; membrana cincreo- 

 cervina. 

 Fawn-colour, somewhat oval, thickly and minutely brown-punctured. 

 Head elongate, somewhat rostriform ; middle lobe extending very little 

 beyond the lateral lobes. Eyes piceous, prominent. Rostrum extending 



