326 Memoirs on the Coleoptera 



very remote; legs short, the anterior somewhat more developed in the male; 



elytra more shallowly grooved. [Type G. roticollis nov.] Groatus 



10 — Beak in the male moderate in length and thickness, separated by an evident 

 though obtuse reentrant angle, the antennae submedial, rather long and 

 thick, the first funicular joint moderately long, the club gradual, rhombic- 

 oval, with large basal segment; prosternum broad, flat, the coxae very 

 remote, the male processes short, subapical, separated by only a feeble 

 concavity; legs rather short, normal in structure, the anterior not longer in 



the male. [Type P. oblongatus nov.] Palistes 



n — Tarsal claws arcuate, free and divergent, always long and distinct 12 



Tarsal claws straight and connate at base, or extremely small though free 32 



12 — Body parallel in form and moderately convex, rather small in size; anterior 

 femora inflated and strongly, diversely dentate to mutic beneath; mandibles 



deeply bifid, arcuate and more or less decussate 13 



Body elongate-oval or posteriorly attenuate 14 



13 — Beak moderate in length, thick (cf), rather slender (9), separated by a 

 distinct narrow sulcus; antennae submedian ( 9), or far beyond the middle 

 (0"), with gradually thicker funicular joints, the club large, elongate-oval, 

 subequally divided by the deep sutures; prosternum flat, separating the 

 coxae by much more than their width; legs moderate, the anterior with more 

 inflated femora in both sexes; sculpture fine, the elytra grooved; surface 

 glabrous and shining; scutellum transverse, well developed, rounded or 

 angulate behind; pygidium small in both sexes. [Type Z. femoralis nov.] 



Zalinus 

 Beak very short, not separated by an impression; antennae medial, notably short, 

 the oval club subequally trisected by the distinct sutures; prosternum flat, 

 the coxae rather widely separated; legs very short, the tarsi somewhat 

 slender, the anterior femora clavate; elytra coarsely grooved; surface 

 glabrous, shining; body very small, more evenly cylindric, the scutellum 

 very small, not transverse, more widely free and obtrapezoidal; pygidium 



larger. [Type A . nanus nov.] Anazalinus 



14 — Prosternum canaliculate; femora unarmed 15 



Prosternum not canaliculate 20 



15 — Prosternal canal very broad and extremely shallow, its sides slightly tumid. 

 Body depressed, elongate-oval, with sparse and erect setae, grooved elytra 

 and small, widely free obtrapezoidal scutellum; beak nearly straight, not 

 separated from the front, with straight mandibles and submedial slender 

 antennae, the club small, abrupt and nearly globular; anterior coxae sepa- 

 rated by somewhat more than their width; femora all strongly inflated, the 



tarsi long and slender. [Type M. hispidula nov.] Myelantia 



Prosternal canal narrow and sharply defined 16 



16 — Prosternum strongly tumid medially before the coxae. Body larger in size, 

 elongate-oval, convex, shining and glabrous, excepting a subscutellar cluster 

 of scales; beak thick, compressed, strongly arcuate; antennae submedial, 

 with thick and oval, rather gradual club; anterior coxae separated by but 

 little more than their width; legs moderate, the femora obtusely dentate 

 beneath, the tarsi not slender; elytra finely grooved; scutellum well devel- 

 oped, free, truncate at tip and wider than long. [Type H. tumidipectus 



nov.] Mexico Hulpes 



Prosternum not tumid before the coxae; scutellum not or but slightly free, arcuate 



behind; femora unarmed; integuments wholly glabrous 17 



17 — Pronotum and entire upper surface impunctate, smooth and polished; form 

 very elongate-oval; scutellum distinct; elytral surface not or but feebly 

 undulated 18 



