1853.] S51 



wh^re the 5th is truncate and the Gth exseiteil. This portion nnay be diviileil 

 as follows : 



A. Coxrc anticae globosa?. 



Abdomen articulis 2 primis connatis . . . . . Bnprestidcc. 



Abdomen articulis omnibus liberis, Oto rotimdato . . Elateridfe. 



Abdomen articulis omnibus liberis, 5to truncato . . . Cebrionidae. 



B. Cox.TB anticae masna? tiansversre. 



Coxnc anticae transversoe, trochantino masno . Atopid:p. 



CoxE anticiB cotiicce, prosterno hrevi, mesosterno protenso . Rhipiceiidn?. 



Coxae anticae coniciB, prosterno iiitegro, mesosterno simplici . Cyphonidap. 



The first two families under (A.) are very extensive, and must form the sub- 

 j'^ct of special essays. In the Elateridce I include both Eucnemides and Thros- 

 cites, as those groups do not appear sufficiently distinct to rank as families. 

 There are also strong reasons for considering the Cebrionidoe as a group of the 

 same vulue. In them the autprior acetabula are more confined to ihe prothorax 

 than in the remaining thiee families, which are sma^l in extent, and will be now 

 considered. 



AxOPlDiE. 



Coleoptera pentamera-, antennis sprratis, 11-artioKlatis, arti-culo 2do brevi ; 

 liiiula c|uadrifida ; coxis anticis transversis non prominulis, trochantino maiino, 

 consp cuo, in acetabulis e prosterno et mesosterno coinpositis pro unde insertis ; 

 prosterno corneo, postice prolongato ; mesosterno concavo ; abdomine spgmentis 

 5 ventralibus liberis; tarsis articulo Imo 5toqiie eiongatis, hoc paranychio 

 parvo bisetoso. 



1. Tarsi elongati simplices, nngues integri.. 

 Antennae approximatae, fronte elongata angusta, clypeo 



nuilo .......... Ectopria L^c. 



Antennae distantes ; palpi maxillares cylindrici . . Stenoeolus Z,.?'-. 

 Antenne distantes ; palpi maxillares dilatati . " Anchytaisus G/a-r. 



2. Tarsi elongati, ungues serrati . Odontonyx Gucr-. 



3. Tarsi aiticulis intermediis dilatatis, ungues intesri. 

 Antennas distantes, art. tarsorum ] 4 subtus lobatis . Dascillus Latr. 

 Antennae approximatae, art. tarsorum 2 4breviter lobatis Eurea Lcc. 



Stenocolus, Anchytarsus, Dascillus and Odontonyx are sufficiently explained 

 at p. 229 of the present volume. I must add, however, 



1. To the synonyms of Anchytarsus b i c ol o r, neust be placed Elodea dehills 

 Ziegler, Proc. Ac. Nat. Sc. 2, 269. 



2. To Odontonyx ornata (x/^fr., Schaum rpfprs Dasytef trivittis GermdiT, 

 Ins. Nov. 76. The species must therefore be called Odontenyx trivittis 

 Sr/iaum, (Bericht. Entom. 1819.) 



Ectopria Lee. 



Antennae basi approximatag, elongatae, articulo Imo crasso, 2 et 3 minutis, 

 4 10 triansularibus, gradatmi subarigustioribus, llmo ovali. Frons angusta, 

 elongata; labrum rotundatum, mandibulas obtf^gen^ ; palpi filiformes, maxillares 

 elongati, labiaies breviusculi. Pedes tenues, tarsi filiformes, articulis Imo et 5to 

 eiongatis, intermediis coniunctis aequalibus, his gradatim paulo brevioribus, 

 ungues parvi simplices; tibiae calcaribus apicalibus ob^oletis. 



The body is shoit, convex, narrowed in front; the thorax is transverse and 

 trapezoidal, with all the angles acute ; the prosternum is produced posteriorly, 

 ami the mesosternum is concave. The species live on bushes near vi-ater. 



!. E. thoracica, atra, subtiliter pubescens, thoracis lateribus tarsisque 

 finvis. Long. ]-'. 



E/ibn'a tlioraciia Ziegler, Proc. Acad. Nat. Sc. 2, 2G9. 



Georgia and Pennsylvania, on plants near water. This very pretty little 

 insect continues still farther the affinity between Atopidae and Parnidae, referred 

 t-> under Stenocolus (p. 2"29.) To ths genus Eurypalpus Lee. it shows strong 



