AMERICAN COMPONENTS OF THE TENTYRIINyE 289 



9 — Frontal margin evenly and broadly arciiato-truncate, without 



emarginations ; wings apparently wanting or vestigial; elytra 

 feebly and bricflv carinulate at each side of the suture near the 

 tip. [Type Emtnomstiis punctatus Lee] Emmenides 



Frontal margin feebly and angularly produced in the middle; wings 

 very full}' developed; elytral series entire and conspicuous. 

 [Type Iimmcnasti/s tcxanus Lee] Armalia 



10 — Frontal margin somewhat variable, evenly sinuato-, or arcuato- 



truncate, the epistoma sometimes very feebly produced and 

 broadly truncate; wings fully developed to decitledlv abbrevi- 

 ated. [Type Emmenastiis loitgulus Lee] Hylocrinus 



II — Head very short and broad, the apical margin rectilinearly 

 transverse and even; tarsi with stiff yellow setiform hairs be- 

 neath ; wings apparently somewhat abbreviated or perhaps ves- 

 tigial; pronotum not foveate, the elytra margined at base as 

 usual. [Type E, cribratiis Horn] Emmenastrichus 



Head less transverse, the frontal margin very broadly arcuate from 

 above; tarsi with numerous short decumbent stiff yellow sub- 

 spiniform hairs beneath; wings as in Hylocrinus; pronotum 

 with two deep fosste at base, the elytra not margined at base ; 

 first joint of the hind tarsi much elongated. [Type E/n/nenas- 

 tiis foveicollis Champ.] *Ditaphronotus 



12 — Tibiae normal, subcylindric, the anterior nearly straight as 



usual ; frontal margin generally feebly sinuato-truncate, not 

 evidently biemarginate. [Type Einmenastiis conicicollis Csy.]. 



Steriphanus 



TibiiE gradually enlarged to the tip, the anterior short and arcuate ; 

 frontal margin broadly arcuato-truncate, with two very minute 

 feeble emarginations ; basal joint of the hind tarsi longer than 

 the fourth ; prothorax narrowing from base to apex as in Crypta- 

 dius. [Type Em7nenastiis pinguis Lee] Stictodera 



13 — Frontal margin broadly arcuato-truncate, entire; hind wings 



very small and vestigial; tarsi sparsely spinulose beneath, the 

 basal joint of the posterior longer than the fourth ; right mandi- 

 ble with a small acute tooth on the upper surface; body elon- 

 gate, parallel to suboval, the integuments dense. [Type Etn- 

 nie7iast7(s ater Lee] Melanastus 



The characters given above for Eurymetofon Esch., are those 

 published by Lacordaire in the " Genera," as before intimated. 

 The genus is not known to me. 



Metoponium n. gen. 



This is the genus that is known in our lists under the name 

 Eurymetop)on Esch., and was so designated by the writer in his 



