BY ARTHUR M. LEA. 535 



Genus Therebus, Pascoe. 



Journ. Linn. Soc. Zool. xi. 1872, p. 480. 



Head not concealed; ocular fovea shallow and indistinct. Eyes 

 subreniform, finely faceted, distant. Rostrum tlie length of pro- 

 thorax, comparatively slender, feebly curved; mandibles prominent 

 and rather acute. Antemue moderately stout; scape shorter than 

 funicle, inserted at exact middle of rostrum; 1st joint of funicle 

 elongate, the others short, 7th strongly transverse; club moderately 

 large, ovate. Prothorax convex, transverse, apex narrow, feebly 

 produced, sides strongly rounded behind ajDCx but straight on 

 basal half, base truncate; ocular lobes almost rectangular. Scutel- 

 him moderately large and subtriangular. Elytra subcylindrical, 

 wider than and about thrice the length of prothorax; base feebly 

 bisinuate, sides parallel to near apex, apex rounded. Pectoral 

 canal not very deep or wide, terminated in front of intermediate 

 coxfe. Mesosternal receptacle depi"essed between intermediate 

 coxa?, raised in front, and at apex vertically truncate. Metaster- 

 mim large, shorter than 1st abdominal segment; episterna large. 

 Abdomen lai'ge, basal segment about once and one-third the 

 length of ■2nd, straight at apex, intercoxal process rounded; 

 intermediates large, their combined length equal to that of 2nd 

 and more than that of 5th. Legs moderately long ; femora 

 moderately stout, not grooved or dentate, posterior terminated 

 considerably before apex of abdomen; posterior coxte transverse, 

 at sides Ijounded by metasternal episterna; tibite slightly com- 

 pressed, not bisinuate beneath, widened at apex, in addition to 

 terminal hook each with a small subapical tooth both above and 

 below; tarsi moderately wide, 3rd joint wide, deeply bilobed, claw- 

 joint elongate, setose. Subelliptic, convex, squamose, punctate, 

 winged. 



This genus appears to be allied to Psepholax, but I do not think 

 that the imagines of the only known species are borers. 



Therebus cepuroides, Pasc, I.e. p. 480, Plate xii. fig 13. 



Brownish-red; prothorax darker than eh'tra, head and rostrum 

 darker than prothorax; anteunte dull red. Moderately densely 



