1853.] | Sad 
where the 5th is truncate and the 6th exserted. This portion may be divided 
as follows: 
A. Coxe antice globose. 
Abdomen articulis 2 primis connatis . : - : . Buprestide. 
Abdomen articulis omnibus liberis, 5to rotundato : . Ejateride. 
Abdomen articulis omnibus liberis, 5to truncato . . Cebrionide. 
B. Coxe antice magne transverse. 
Coxe antice transverse, trochantino magno “ 5 . Atopide. 
Cox antice conice, prosterno brevi, mesosterno protenso . Rhipiceride. 
Coxe anticz conice, prosterno integro, mesosterno simplici . Cyphonide. 
The first two families under (A.) are very extensive, and must form the sub- 
ject of special essays. In the Elateride I include both Eucnemides and Thros- 
cites, as those groups do not appear sufficiently distinct to rank as families. 
There are also strony reasons for considering the Cebrionidz as a group of the 
same value. In them the auterior acetabula are more confined to the prothorax 
than in the remaining three families, which are small in extent, and will be now 
considered. 
ATOPIDE. 
Coleoptera pentamera, antennis serratis, 1l-articulatis, articulo 2do brevi; 
ligula quadrifida; coxis anticis transversis non prominulis, trochantino magno, 
consp cuo, in acetabulis e prosterno et mesosterno compositis pro.unde insertis ; 
prosterno corneo, postice prolongato ; mesosterno concavo ; abdomine segmentis 
5 ventralibus liberis; tarsis articulo 1mo 5toque elongatis, hoc paranychic 
parvo bisetoso. 
1. Tarsi elongati simplices, ungués integri. 
Antenne approximate, fronte elongata angusta, clypeo 
nullo . . : : j ’ : : - Ectopria Lec. 
Antenne distantes; palpi maxillares cylindrici . - Stenocolus Lec. 
Antenne distantes; palpi maxillares dilatati : - Anchytarsus Guer. 
2. Tarsi elongati, ungues serrati . Odontonyx Guer. 
3. TYarsi articulis intermediis dilatatis, ungues integri. 
Antenne distantes, art. tarsorum 1—4 subtus lobatis . Dascillus Latr. 
Antenne approximate, art. tarsorum 2—4 breviter lobatis Eurea Lec. 
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 bicolor, must be placed Elodes dehilis 
Ziegler, Proc. Ac. Nat. Se. 2, 269. 
2. To Odontonyx ornata Guwér.,Schaum refers Dasytes trivittis Germar, 
Ins. Nov. 76. The species must therefore be called Odontonyx trivittis 
Schaum, (Bericht. Entom. 1849.) | 
Ecrorria Lec. 
Antenne basi approximate, elongate, articulo 1mo crasso, 2 et 3 ininutis, 
4—10 triangularibus, gradatim subangustioribus, 1!mo ovali. Frons aneusta, 
elongata; labrum rotundatum, mandibulas obtegens; palpi filiformes, maxillares 
elongati, labiales breviusculi. Pedes tenues, tarsi filiformes, articulis 1mo et 5to 
elongatis, intermediis coniunctis equalibus, his gradatim paulo brevioribus, 
ungues parvi simplices; tibize calcaribus apicalibus obsoletis. 
The body is short, convex, narrowed in front; the thorax is transverse and 
trapezoidal, with a!l the angles acute; the prosternum is produced posteriorly, 
and the mesosternum is concave. ‘The species live on bushes near water. 
1. E. thoracica, atra, subtiliter pubescens, thoracis lateribus tarsisque 
flavis. Long. -16. 
Eubria thoracica Ziegler, Proc. Acad. Nat. Sc. 2, 269. 
Georgia and Pennsylvania, on plants near water. This very pretty little 
insect continues still farther the affinity between Atopide and Parnide, referred 
t) under Stenocolus (p. 229.) ‘To the genus Eurypalpus Lec. it shows strovg 
