42 U. 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 piceis. 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. 
Aegialia Latr. 
Ae. crassa, ovata, crassa, convexa, nigra nitida, subtus flavo-setosa, clypeo scabro, thorace 
punctato, apice laevi, lateribus valde rotundatis vageimpressis, 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. cadafa, 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 j)iceis. Long. "IS. 
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 rufous. 
SiNODENDRON Fabr. 
S. rugosum, piceo-nigrum nitidum, thorace grosse, elytris confluenter foveatim punctatis vix 
obsolete striatis. Long. "48 — '55. 
Mas capite punctato, cornu elongato 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 pxinctato 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. 
Ancylochira Esch. 
A. Gihhsii, viridiaenea, elongata, capite purpurascente punctato, fronte carinato, thorace 
latitudine sesqui breviore, punctato, lateribus subparallelis, basi bisinuata, elytris purpureis, 
macula magna obliqua antica (puncto humerali aeneo 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 aboiit 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. 
