78 
PROCEEDINGS OF THE ACADEMY OF 
Colorado Desert. Found with the preceding, which it greatly resembles, but 
differs from it in the color of the pubescence. In each the posterior femora are 
armed near the tip with one tooth and two small denticles. 
B. desertorum, oblongo-ovatus, ferrugineo-testaceus, dense cinereo- 
pubescens, ssepe ferrugineo-nebulosus, fronte verticeque infuscatis, thorace 
latitudine hand longiore, antrorsum angustato, punctatis ; elytra striis angus- 
tis profundis punctatis, sutura margineque ssepe subinfuscatis, pedibus anten- 
nisque testaceis. Long. '08. 
Colorado Desert. Also allied to the two preceding, and found on the same 
plants ; it is however much smaller, but otherwise shows no special difference. 
Apion Herbst. 
A. oedorhynchum, brevius ovatum, virescente nigrum, parce tenuiter 
cinereo-pubescens, rostro cylindrico curvato, capite thoraceque fere longiore 
opaco, pone medium subsubito crassiore, fronte subtiliter striata, thorace opaco 
latitudine hand breviore, lateribus vix rotundatis, dense cribratim punctato, 
postice canaliculato, elytris ovatis valde convexis, striis profundis punctatis, 
interstitiis subtiliter dense rugulosis, antennis pone rostri medium insertis. 
Long. -05. 
San Diego, California, one specimen. Quite distinct from any other species 
known to me. 
A. ventricosum, brevius ovatum, nigrum vix virescens, glabrum, rostro 
cylindrico, thorace paulo longiore, punctatum, versus apicem subnitidum, 
capite opaco, fronte medio sulcata, thorace opaco, latitudine longiore, lateribus 
subsinuatis, biimpresso, cribrato, postice canaliculato, elytris ovatis convexis, 
thorace triple latioribus, sulcis profundis punctatis, interstitiis dense subtiliter 
rugulosis, antennis ad rostri basin insertis. Long. *06. 
One specimen, Fort Yuma, California. The impressions of the thorax are 
near the side, and a little before the middle. 
Cleonus Schonh. 
C. molitor, niger, pube decidua farinosa alba plus minusve dense vestitus, 
parceque brevissime pilosus, capite thoraceque variolosis, interstitiis dense 
punctulatis, rostro nec canaliculato, nec cristato, thorace parum breviore, hoc 
latitudine paulo longiore, lateribus rectis, prope apicem rectangulariter anguia- 
tis, et usque ad apicem constrictis, max ante medium utrinque transversim 
vage impresso, elytris thorace latioribus, dense punctulatis, striatim punctatis, 
interstitiis parce nigro-punctatis, pedibus antennisque valde albo-pubescenti- 
bus, his articulis arete conjunctis, 2ndo et 3io sequentibus paulo longioribus. 
Long. -7. . 
Vallecitas, California, Fort Yuma and Sonora. This is the largest species m 
my collection ; it belongs near C. angularis Lec. (Beckwith's Exped.), al- 
though the first joint of the funiculus of the antennae is not longer than the 
second. 
Lixus Fabr. 
L. pleuralis, valde elongatus, niger sat dense cinereo-pubescens, thoracis 
lateribus elytrorumque vitta laterali densius albo-pubescentibus, thorace antror- 
sum angustato, lateribus late rotundatis ad basin profunde excavato, elytris 
versus scutellum impressis, dense punctulatis, punctisque quadratis striatim 
positis, ad apicem brevissime singulatim acuminatis ; rostro cylindrico recto 
punctato, thorace sesqui breviore. Long. '34. 
One specimen found on the Colorado River below the Gila. 
L. laesicollis, elongatus niger dense punctulatus, tenuiter irregulariter 
cinereo-pubescens, thorace profunde cribrato, latitudine haud longiore, lateri- 
bus postice subparallelis, antice rotundatis, ad apicem subtubulato, postice 
profunde haud late excavato, elytris versus scutellum impressis, ad apicem 
rotundatis, subtilius punctulatis, punctis oblongis striatim positis ; rostro 
[March, 
