COLLECTED IN BOKNEO. 163 



Fam. MEMBEAOINA, Burmeister. 

 Gen. Centrotus, Fair. 



112. Centrotus Taixrus, Fahr. See page 93. 



113. Centeotus subsimilis, 11. s., fcEin. Niger obsciu-us, thorace scabro 

 gibboso, corniibvis lateralibus rectis acutis, cornu postico abdominis apicem 

 superante, scutello pectorisque maculis cluabus albidis, alls subhmdis, costa 

 veiiisque nigris. 



Female. Black. Thorax scabrous, elevated ; lateral horns acute, extending 

 at right angles to the body ; scuteUum, and a spot on each side of the 

 pectus whitish. Wings shghtly liu'id ; costa and veins black. Length of 

 the body 3 lines ; of the wings 7 lines. 



Very nearly allied to C Taurus, from which it is distinguished by its shorter, 

 straight, and horizontal lateral horns. 



114. Centrotus laininifer. Walk. See page 93. 

 Exceeding in size the specimen from Malacca. 



115. Centrotus vicarius. Walk. Cat. Somopt. pt. 2. 605. 

 Inhabits also Java. 



116. Centrotus limbatus, n. s. Niger, thoracis vittis tribus, abdomine 

 subtus pedibusque albidis, comubus lateraUbus parvis, cornu postico 

 abdominis apicem vix attmgente. 



Black. Thorax with three wMte stripes which are united in front and beliuid ; 

 the lateral pair cui-ved, includuig the lateral horns, and dilated at the base 

 of the huid horn ; lateral horns acute, as long as half the space between 

 them ; hind horn extenduig nearly to the tip of the abdomen, which is 

 whitish beneath. Legs wliitish. Wings greyish hyahne, with black veins. 

 Length of the body 3^ Imcs ; of the wings 8 lines. 



117. Centrotus latimaeoo, n. s. Ater, thoracis comubus laterahbus latis 

 planis acuminatis bicarinatis, cornu postico abdominis apicem non attin- 

 gente, tarsis posticis albidis, alls tcsfaceo-hyalinis, anticis apud costam 

 late nigris. 



Deep black, scabrous. Lateral horns of the thorax broad, flat, acuminated, 

 with two ridges, sUghtly inchned backward, each as long as the space between 

 them ; hind horn extending nearly to the tip of the abdomen. Hind tarsi 

 wliitish. Wings testaceous hyaline. Fore wmgs with a broad black costal 

 stripe. Length of the body 3 Unes ; of the wings 7 lines. 



Nearly aUied to C. Assamensis, Fairm. 



118. Centrotus densus, n. s., mas. Niger obscurus scabrosus, thoracis 

 comvibus laterahbus acuminatis carinatis subascendentibus, cornu postico 

 abdominis apicem superante, scutello macuhs duabus albidis, ahs posticis 

 cinereo-hyalinis. 



Male. Black, dull, scabrous, stout. Lateral horns of the thorax acute, ridged, 

 obliquely ascending, each a little shorter than the space between them ; 

 hind horn extending a httle beyond the tip of the abdomen ; scutellum 



