ANISODACTTLUS, Dej. 
1. A, dilatatiis^ Black; thorax transverse quad rale, not 
contracted behind : in'.[)imctiu*ed ; first joint of the anteimx> 
testaceous. 
Inhal). Mexico. 
Body black, impuncluved : antenme not reaching tlie base 
of the thorax; first joint pale testaceous, second joint dark- 
er, remaining joints blackish: impressed frontal Hoes very 
distinct: thorax without any appearance of pimc ure, not 
narrowed beliind ; lateral edge regularly arquated ; poste- 
rior angles rounded ; dorsal line not very obvious ; basal 
indentations much dilated, not profound ; minute longitudi- 
nal lines or wrinkles at the middle of the base, and less ob- 
vious ones on the anterior margin : elytra, strue profound, 
impunctured ; interstitial spaces depressed : tip very ob- 
tusely sinuous : abdomen, terminal aiid. anal segments above 
punctured. 
Length less than half an inch. 
This species is closedy allied to the A. ccenns^ Say, and 
its form is perhaps still more like that of an Amaka \n 
being more obtuse and robust. It is muck hn“geF and more 
rounded behind. It was taken in Mexico by Wm. Bennett 
and was presented to me by Mr. Maclure, 
2. A. baltimoriensiSf Say, (Harpalus) Trasis. Am. Phi- 
los. Soc., Dej. Spec. A very bad name, as t.he species is 
found as well in Indiana as in Baltimore ; bud ii: is a spe- 
cific name and therefore imcluingeable. 
3. A. riistlciiSy Say, (Harpalus) Trans. Amer. Philos. 
Soc.; Dej. Spec.; A. merulns F G^ermar. 
A. ccaniiSy (liarpalos) Trans, Am. Pliiios. Soc. ; 
Dej. Spec. 
5. A. agricolaSj Say, (Harpalus) Trans. Amer. Philos. 
Soc*; Dej. Spec. 
6. A. carbonarius, Say. (Harpalus) Trans. Aiiier. Phi- 
los. Soc. 
7. A. Imtiis? Dej. An insect is fouml in this vicinity, 
which I iiave referred, but very doubtfullv to iiie Imtu.'s.-™ 
its characters correspond to the description, but if it be in- 
deed the same, a very important charctcter m\iHt Ife added. 
My specimen is a male. The altemaie inlersiitial spaces 
are cupreous and the remalnlog part is green, it ha.s a 
very much dilated, slight iodentadon r>ehind the middle of 
the elytra and a smaller one nearer the dp. 
SO, 1850. 
