212 MISC. PUBLICATION 17 0. U. S. DEPT. OF AGRICULTURE 



Figitje 90. — Anterior tibia of male (A), clypeus (B), and last visible abdominal 

 sternite of male (C) and of female (D) of Clu'ifsottothris bispinosa. 



Female. — Rather broadly elongate, slightly convex above, subopaque, piceous, 

 the punctures more or less cupreous : beneath brownish cupreous, with smooth 

 spaces bluish black, and rather strongly shining. 



Head uniformly brownish cupreous, with a broad, smooth, longitudinal carina 

 on occiput, the carina longitudinally sulcate, and with two irregular, more or 

 less interrupted, transverse, smooth spaces on front ; front nearly flat ; surface 

 coarsely, densely, irregularly punctate, sparsely clothed with long, inconspicuous, 

 semierect. cinereous hairs ; clypeus deeply, angularly emarginate in front, broadly 

 rounded on each side. Antenna uniformly reddish cupreous, gradually narrowed 

 to apex ; intermediate segments compact, as long as wide, subtruncate at outer 

 margins : third segment as long as following three segments united. 



Pronotum nearly twice as wide as long, narrower at apex than at base, widest 

 near apex ; sides arcuately converging at apical angles, obliquely converging from 

 near apical angles to posterior angles : anterior margin broadly, arcuately emar- 

 ginate, without a median lobe: base broadly, arcuately emarginate on each side, 

 median lobe moderately produced, truncate in front of scutellum : disk evenly 

 convex, without depressions : surface rather finely, irregularly punctate at middle, 

 more coarsely, confluently punctate at sides, sparsely clothed at sides with short, 

 inconspicuous hairs. Scutellum short, triangular. 



Elytra distinctly wider than pronotum at base, widest near base, twice as long 

 as wide : sides arcuately converging from humeral angles to tips, which are 

 separately narrowly rounded : lateral margins coarsely serrate : basal depressions 

 deep ; humeral depressions broad and moderately deep ; surface glabrous, finely, 

 densely, irregularly punctate. Each elytron with three more or less distinct 

 costae ; first distinct, extending from apex to basal third : second and third 

 irregular, more or less interrupted, connected to each other by irregular, trans- 

 verse, smooth spaces : and with two moderately large, densely punctured foveae 

 between first and third costae. one at basal third, the other just behind middle. 



Abdomen beneath coarsely, irregularly fossulate-punctate at middle, confluently 

 punctate at sides, sparsely clothed with long, recumbent, whitish hairs, slightly. 

 longitudinally flattened at middle, without lateral callosities, intervals obsoletely 

 granulose : last visible sternite deeply, narrowly, arcuately emarginate at apex, 

 with angles acute and projecting, with a smooth, longitudinal, median carina, 

 and a slightly elevated, serrate, submarginal ridge, lateral margins not serrate : 

 eighth tergite coarsely, densely punctate, strongly serrate and broadly rounded 

 at apex. Presternum nearly smooth at middle, coarsely, irregularly punctate at 

 sides, rather densely clothed with long, recumbent, whitish hairs : anterior mar- 

 gin arcuately rounded, without a distinct median lobe. Anterior femur with a 

 short, acute tooth, which is not dentate on outer margin. Anterior tibia slightly 

 arcuate, unarmed : middle and posterior tibiae straight. 



Length 17 mm., width 7.75 mm. 



