330 Memoirs on the Coleoptera 



distinctly denticulate beneath, the tarsi narrow; thoracic lobe gradual, 

 broadly rounded, the scutellum small, equilatero-triangular; elytra grooved, 

 the pygidium smaller, vertical. [Type Baridins curtulus Boh.] Solaria 



Anterior coxae remotely separated 30 



30 — Body abbreviated, more or less small in size, the cuneiform elytra undulated; 

 surface shining, glabrous or nearly so; beak arcuate, the antennae generally 

 somewhat post-median, with well developed and elongate-oval club; pygid- 

 ium small, nearly vertical. [Type Rhynchcenus undulatus Say] Madarellus 



Body elongate, more or less cuneiform and generally larger in size, the pronotum 

 in profile generally somewhat ascending with reference to the plane of the 

 elytra; pygidium rather small, nearly vertical 31 



31 — Body with close and confusedly variegated vestiture; beak very long; 

 femora slightly inflated, the inferior denticle distinct; alternate strial inter- 

 vals more convex. [Type P. complexus nov.] Paramadarus 



Body glabrous, or in part with evenly scattered setiform squamules, the third 

 strial interval with a line of denser scales basally and only rarely obsolete; 

 femora slender or not inflated, the denticle beneath very minute and some- 

 times wholly obsolete; strial intervals uniform; striae feeble and punctate 

 to finely grooved; body narrower. [Type Madams vorticosus Boh.] 



Linomadarus 



32 — Claws connate at base; beak moderate, more or less slender; sides of the 

 prothorax rounded in section 33 



Claws very minute but free; beak extremely short, cuneate or conical; sides of 

 the prothorax sharply defined 38 



33 — Scutellum closely fitted 34 



Scutellum free 37 



34 — Scutellum transversely lunate as in the preceding genera; body larger.. . .35 



Scutellum small, equilatero-triangular; body very small 36 



35 — Prosternum prolonged as far as the middle coxae, gradually acuminate and 

 subprominent at tip, without trace of transverse suture between the anterior 

 coxae, which are separated by twice their width; antennal club as long as 

 the preceding six joints; body elongate-oval, smooth; beak thick, strongly 

 arcuate. [Type P. convexicauda nov.] Piperis 



Prosternum truncate behind on a line through the middle coxae, the transverse 

 suture obliterated but indicated by abrupt difference in sculpture; antennae 

 medial, as in the preceding, the club more sharply pointed, sometimes as 

 long as all the preceding joints combined; pygidium smaller, nearly flat, 

 similarly vertical; beak thick and strongly arcuate. [Type P. scrobiculata 

 nov. ] Parapiperis 



36 — Body subrhomboid, with rather long elytra, which are very finely striate; 

 beak moderate, the antennae rather short, medial; prosternum more or less 

 excavated, separating the coxae by about one-half more than their width; 

 legs somewhat slender, the anterior and middle femora sometimes angularly 

 prominent beneath; thoracic lobe moderate, rounded. [Type Baridius 

 sesostris Lee] Ampeloglypter 



Body regularly oval, with less elongate and more rounded elytra, having coarser 

 grooved striae; beak moderate, the antennae short, submedial, with non- 

 abrupt and moderate, oval club; prosternum flat, foveate at apex, separating 

 the coxae by nearly twice their width; legs slender, the anterior femora, as 

 well as the others, mutic; under surface densely cribrate; thoracic lobe 

 very moderate, truncate at tip. [Type 5. nanella nov.] Solariopsis 



Body oblong-oval, with obtuse and rather strongly grooved elytra; beak and 

 antennae nearly as in the two preceding; prosternum separating the coxae by 

 almost twice their width, the anterior slope feebly, longitudinally impressed, 



