542 TRANSACTIONS OF THE 



2. A. BASiLLARis Say, (Feronia) Trans. Amer. Philos. Soc. 



3. A. IMPUNCTICOLLIS Say, (Feronia) Trans. Amer. Pliilos. 

 Soc. — Dejean thinks it tlie same as A. trivialis, Duftsehm., but 

 I have not yet compared it. 



4. A. ANGUSTATA Say, (Feronia) Trans. Amer. Philos. Soc. 



5. A. OBESA Say, (Feronia) Trans. Amer. Philos. Soc. 



6. A. iMPUNCTATA Say, (Feronia) Trans. Amer. Philos. Soc. — ■ 

 Deiean thinks it the same as the famiUaris, Duftsehm., but I 

 have not satisfactorily compared them. 



The following species appear to be new : [429] 



7. A. DOLOSA. — Black; oblique line near the thoracic angle 

 obviously impressed ; eljtra with impunctured striae. 



Inhabits Mexico. 



Body black, impunctured ; head with the impressed lines be- 

 tween the antennge absolete ; antennae fuscous, joints rather short, 

 three basal joints honey-yellow ; palpi black piceous, thorax rather 

 short lines not deeply impressed ; oblique line near the posterior 

 ano-les very distinct; hair of the lateral margin situated at one- 

 third of the distance between the anterior and posterior angles, 

 another hair at the basal angle ; elytra with impunctured capillary 

 strise • interstitial lines depressed, hardly convex ; feet piceou,s- 

 black ; tibiie and tarsi a little paler. 



Leno-th nearly three-tenths of an inch. 



Resembles A. impuncticollh, nob., and A. communis and vul- 

 garis Fabr., but diifers from all in color, greater brevity of the 

 thorax, more robust form, &c. Viewed in a particular light, a 

 tint of blue may be, with some difficulty, detected. 



8. A. SERA. — Greenish black ; three basal joints of the anten- 

 nae yellowish. 



Inhabits Mexico. 



Antennae fuscous; first, second, third and base of the fourth 

 joints yellowish ; thorax impunctured, basal angles rectangular, 

 with the oblique line not deeply impressed ; basal lines rather 

 deep, abbreviated, definite, impunctured; dorsal line distinct; 

 elytra with the striae impunctured, acutely impressed ; basal ab- 

 breviated striae rather long ; interstitial lines with a very slight 



[Vol. IV, 



