INSECTS COLEOPTERA. 53 



rugoso, thorace latitudine vix longiore punctato ; elytris fortiter seriatim cribratis, interstitiis 

 uniseriatim punctatis ; rostro valido brevi ad apicem latiore. Long. 15. 



San Francisco, May. The rostrum is hardly longer than the head, and besides the two 

 diverging grooves which unite between the eyes, there is a slight fovea between the antennae. 

 Belong to Schonherr s Stirps 2, Manipulus 2. 



APION Herbst. 



A. crassinasum, nigrum minus subtiliter cinereo-pubescens, capite subtilius punctato, inter 

 oculos profunde sulcato, rostro thorace vix longiore, crassiusculo ad basin paulo dilatato, punc- 

 tulato ad apicem laevi, thorace confertim cribrato latitudine non longiore, lateribus paulo 

 rotundatis, ad apicem subtubulato, ad basin medio profunde foveato ; elytris subovatis longius- 

 culis subaenescentibus, convexis, striis valde crenatis, interstitiis subrugosis, uniseriatim 

 punctulatis, ad basin subtruncatis humeris rotundatis ; antennis versus rostri basin insertis. 

 Long. -08. 



One specimen, San Francisco ; another found by Dr. Cooper at Prairie Paso. Belongs to 

 Schonherr s Stirps 1, near A. Sayi, but is much smaller and more elongate, being nearly the 

 shape of A. proclive. 



A. proclive , nigro-subaeneum fere opacum, parce cinereo-pubescens, capite punctato, inter 

 oculos sulcato, rostro corporis dimidio haud breviore, tenui cylindrico paulo arcuato, utrinque 

 ad latera postice unistriato ; thorace latitudine haud longiore antrorsum angustato, lateribus 

 parum rotundatis, ad apicem transversim paulo constricto, grosse punctato, basi medio foveato ; 

 elytris convexis ovatis, huraeris obtuse rotundatis, thorace duplo latioribus, striis crenatis, 

 interstitiis subplanis subtilissime rugosis ; antennis versus rostri basin insertis. Long. 08.. 



San Francisco, June, not rare. The foregoing characters will enable it very readily to be 

 recognized. It may be, perhaps, A. cuprescens Mann., but the description of the latter is not 

 very definite, and its locality is Sitkha. 



A. cribricolle, nigrum (capite fracto,) rostro crassiusculo subarcuato, thorace paulo longiore, 

 subtiliter rugose punctulato ; thorace latitudine haud breviore confertini cribrato-punctato, ad 

 apicem angustato et subconstricto, lateribus subparallelis, pone medium canaliculato ; elytris 

 virescentibus fere nitidis, striis crenatis, interstitiis planis subrugosis, subtilissime uniseriatim 

 pubescentibus, convexis longius ovatis, ad basin subtruncatis, humeris obtuse rotundatis ; 

 antennis ad rostri medium insertis. Long. *07. 



San Francisco, one specimen. 



A. cavifrons, nigrum parce subtiliter cinereo-pubescens, capite punctato, inter oculos 

 tenuiter carinato utrinque longe excavate, rostro thorace paulo longiore, crassiusculo cylindrico, 

 versus basin opaco ; thorace latitudine haud breviore, antrorsum angustato, lateribus paulo 

 rotundatis, confertim cribrato-punctato linea dorsali profunde antice paulo abbreviata ; elytris 

 ovatis longiusculis convexis fere nitidis subvirescentibus, striis fortiter crenatis, interstitiis vix 

 rugulosis, uniseriatim punctulatis, ad basin subtruncatis humeris obtuse rotundatis ; antennis 

 versus rostri medium insertis, articulis baseos duabus rufis. Long. -08. 



Prairie Paso, Dr. Cooper. Only one specimen was obtained of this very interesting species ; 

 the thorax is not at all constricted at the apex. 



A. protensum, valde elongatum, nigrum, capite punctato inter oculos subfoveato, ante oculos 



