188 Mil. r. WALKER ON noMorxEKA. 



nibus (luobus hiteralibus rcctis breviiisculis, abdumine nigricante, alls 

 cinereis hyalinis, alis anticis basi ferrugineis venis fiilvis. 



Female. Ferruginous, tbick, with slightly gilded pubescence. Thorax 

 slightly keeled, minutely punctured, armed on each side with a stout 

 directly diverging horn, which is a little less than half the breadth of 

 the intermediate space. Abdomen blackish. Wings cinereous, hya- 

 line. Fore wings ferruginous and punctured at the base ; veins tawny. 

 Ilind wings with black veins. Length of the body 2 lines, of the 

 wings 4 lines. 



Hub. New Guinea. 



The hind horu of the specimen here described is broken. 



270. Centrotus tibialis. Mas. Niger, thoraee cornil)us duobus 

 lateralibus vix ascendcntibus cornu postico subarcuato abdominis 

 apicem paullo superante, tibiis posterioribus pallide llavis, alis cinereis 

 hyalinis, alis anticis subluridis nigro bivittatis. 



Mule. Black, tbick. Head and thorax mhiutely punctured. Thorax 

 keeled, armed on each side with a diverging hardly ascending horn, 

 which is hardly curved, and is a little shorter than the intermediate 

 breadth of the thorax ; hind horn slightly curved downward, extending 

 a little beyond the tip of the abdomen. Posterior tibia; pale yellow. 

 Wings cinereous, hyaline. Fore wings with a lurid tinge and with two 

 black stripes ; first stripe costal, occupying all the base, extending to 

 five-sixths of the length ; second narrow, extending along the whole 

 length of the hind border. Length of the body 2h lines, of the wings 

 5 lines. 



Hab. Guinea. 



271. Centrotus contractus. F^ann. Piceus, thoraee cornibus du- 

 obus lateralibus longis arcuatis oblique ascendcntibus et deflexis 

 cornu postico longo gracili recto, abdomine subtus pedibusque pal- 

 lide luteis, alis posticis nigricantibus. 



Female. Piceous. Head and thorax minutely punctured. Thorax 

 keeled, very thick, armed on each side with a stout, backward-curved, 

 obliquely ascending and diverging horn, which is much longer than 

 the whole breadth of the thorax ; hind horn long, slender, straight. 

 Abdomen beneath and legs pale luteous. Hind wings blackish ; 

 veins black. Length of the body 2| lines, of the wings 5 lines. 



Hab. Aru. 



272. Centrotus alihous. Mas Niger, crsissus, thoraee cornibus 

 duobus lateralibus breviusculis subascendentibus cornu postico gra- 

 cili subarcuato abdominis apicem paullo superante, pedibus piceis 

 tnrsis fulvis, alis anticis basi, costa; diuiidio margineque exteriore 

 piceis. 



Male. IJhick, thick, with slightly gilded i)ubesecnce. Thorax minutely 



