42 tJ. S. p. R. R. EXP. AND SURVEYS — ZOOLOGY — 47TH PARALLEL. 



rotundatis, elytris striis subtiliter punctulatis, interstitiis planissimis obsolete punctulatis, 2ndo 

 (et 3io, 4toque saepe ad basin) margine basali apicalique tetaceis ; pedibus pieeis. Long. "16. 

 San Francisco. The spines of the apical fringe of the posterior tibiae are somewhat unequal 

 in size. The clypeus is not tuberculate in either sex. 



Aegialu. Latr. 



Ae. crassa, ovata, crassa, convexa, nigra nitida, subtus flavo-setosa, clypeo scabro, thorace 

 punctato, apice laevi, lateribus valde rotundatis vage impressis, elytris striis punctatis, interstitiis 

 parum convexis laevibus. Long. '17. 



San Francisco. The thorax is very short and much narrowed in front, less punctured on the 

 sides than in the middle ; the general form is that of Trachyscelis. 



Ae. caelata, ovata convexa, nigra nitida, subtus flavo-setosa, clypeo valde scabro, thorace brevi 

 lateribus valde rotundatis, fovea media sulcisque duabus transversis interruptis grosse punctatis 

 (posteriore profunda), elytris inflatis, striis profundis fortiter crenatis interstitiis parum convexis 

 laevibus, subtus pedibusque pieeis. Long. '13. 



San Francisco, abundant. The impressions of the thorax are very coarsely, punctured, the 

 elevated parts are smooth ; the apical coriaceous margin is testaceous, varies with the elytra, 

 and feet rufoiis. 



SiNODENDRON Fabr. 



S. rugosum, piceo-nigrum nitidum, thorace grosse, elytris confluenter foveatim punctatis vix 

 obsolete striatis. Long. •48 — '55. 



Mas capite punctato, cornu elongate antice protenso, superne parce ciliato paulo concavo, 

 armato ; thorace ad medium antice subito declive, transversim carinato, denteque medio armato; 

 parte anteriore concavo, dense punctato. Tab. I, fig. 15. 



Femina capite rugose jiunctato tuberculo frontali munito, thorace aequaliter grosse punctato, 

 convexo linea dorsali antice abbreviata et elevata, calloque utrinque parum elevato sublaevibus, 

 ad apicem transversim impresso. 



Mann. Bull. Mosc, 1843. 



California, sent me by Colonel Motschulsky. 



Anctlochira Esch. 



A. Gibhsii, viridiaenea, elongata, capite purpurascente punctato, fronte . carinato, thorace 

 latitudine sesqui breviore, punctato, lateribus subparallelis, basi bisinuata, elytris purpureis, 

 macula magna obliqua antica (puncto humerali aeueo includente), macula transversa postica 

 suturam baud attingente, alteraque ante apicem rufo-flavis, striis profundis punctatis, interstitiis 

 parce punctatis ad apicem emarginatis bidentatis, labro antennisque testaceis, his articulo prime 

 aenescente. Long. "6. Tab. I, fig. 17. 



One specimen, collected at Steilacoom, by Mr. George Gibbs, to whom I dedicate it with much 

 pleasure. The second spot of the elytra is situated about one-third from the apex, and extends 

 from the margin nearly to the suture ; the posterior one is near the apex, it also extends nearly 

 to the suture, but is dilated along the margin. 



A. Langii, laete viridiaenea, vel cupreo-aenea, capite confertim punctato, thorace latitudine 

 breviore antrorsum sensim angustato, subcanaliculato, versus latera foveato, confertim punctato, 



