1852.] 167 



Eb.eus Er. 



1. E. morulus, niger nitidus, parce pubescens, thorace subtransverso, 

 lateribus et basi rotundato, elytria irapunctatis, abdomine brevioribus, abdo- 

 minis segmentis flavo-marginatis, clypeo pedibusque anterioribus testaceis. 

 Long. -12. 



One specimen, Missouri Territory. The antennae are piceous, with the infe- 

 rior margin pale. 



2. E. apicalis Er. Entom. 119. Malachius apicialis Say, Journ. Ac. Nat. 

 Sc. 5, ITO. 



Southern States, very abundant; the elytra of the female are entirely blact. 

 It is the Malachius melinojHerus of Dejean's Catalogue. 



3. E. bicolor, niger, tenuiter cinereo-pubescens, capite, thorace antenna- 

 rum basi pedibusque flavis, elytris subtiliter alutaceis. Long. -07. 



One male-, from Georgia, with the tip of the elytra yellow and hamate as in 

 the preceding species, from which it differs principally by its yellow head. 



4. E. pu si 11 us, 3Ialachius pusillus Say, Journ. Ac. Nat. Sc. 5, IVO. 

 Southern States; the male has the tip of the elytra yellow and hamate ; the 



female resembles very much Anthocomus granularis Er., but is distinguished at 

 once by its bluish color and densely alutaceous elytra. 



5. E. o bl i t u s , niger, vix cyanescens, tenuiter cinereo-pubescens, thorace 

 convexo, subtilissime punctulato, subtransverso, lateribus et basi rotundato, 

 po=?tice subangustato, elytris convexis subtilissime punctatis, antennarum basi, 

 pedibusque flavis. Long. -OV. 



Middle and Soutbern States. Differs from the preceding by its less transverse 

 more convex, and finely punctured thorax; the male, as usual, has the tip of 

 the elytra pale colored and hamate ; in the female the elytra are much dilated 

 behind. 



6. E. submarginatus, longiusculus, sneo-niger, tenuiter pubescens, 

 thorace subtiliter alutaceo non transverse, versus basin angustato, basi refun- 

 data obsolete rufescente, elytris vix dilatatis depressiusculis, obsolete rugosia, 

 abdomine brevioribus. Long. '06. 



One specimen, Colorado River, California. The antennae and tibiae are testa- 

 ceous at base. 



7. E. minutus, Malachius minutus Mels. Pr. Ac. Nat. Sc. 2, 305. 

 Pennsylvania. This species is unknown to me. It is described as being 



black, with the feet antepectus, head and thorax rufous, the latter with a 

 dusky vitta. It may be an Anthocomus, but from its small size, the reference 

 to this genus is probably correct. 



AcLETUS Lee. 



Antennae U-articulatae, maris pectinatee. CJypeus brevissimus, indistinctus. 

 Labrum parvum transversum, breve. Palpi maxillares breves, arliculo 4to apice 

 acurainato. Tarsi antici maris articulo l^o inferno, 2ndo obliquo. 



I have only males of this genus, which differ from Ebaeus by the first joint 

 of the anterior tarsi being inferior, and almost indistinct; the tip of the elytra 

 is not impressed ; the ventral segments of the abdomen are entirely corneous. 

 The itisect has somewhat the appearance of Malihinus, but with longer elytra. 



1. A. nigrelluSj niger, nitidus, vix pubescens, thorace valde transverse, 

 capite vix latiore, angulis omnibus rotundatis, posticis, explanatis, elytris thorace 

 paulo latioribus, subtilissime vix rugosis. Long. -11. 



Two male from Eagle Harbor, Lake Superior. The posterior tibiae are slight- 

 ly bent inwards, and the joints of the antennae after the 4th, are triangular, 

 with the internal angle much prolonged, so that the organs become tolerably 

 strongly pectinate. 



