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 Schbnherr’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, prodive, nigro-subaeneum fere opacum, parce cinereo-pubescens, capite punctato, inter 
oculos sulcato, rostro corporis aimidio baud breviore, tenui cylindrico paulo arcuato, utrinque 
ad latera postice unistriato ; thorace latitudine baud longiore antrorsum angustato, lateribus 
parum rotundatis, ad apicem transversim paulo constricto, grosse punctato, basi medio foveato ; 
elytris convexis ovatis, humeris 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. crihricolle , nigrum (capite fracto,) rostro crassiusculo subarcuato, thorace paulo longiore, 
subtiliter rugose punctulato ; thorace latitudine baud breviore confertim 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 excavato, 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 
