OF NATLIIAL IIISTOEY. 6»5o 



line : elytra with a dull [ 195 ] honcy-ycllow villa, cxtcrnul id^t 

 and obsolete spot on the basal middle : postpcctus scriceouii : feet 

 hunoy-yelluw ; tip of the posterior thighs, their tibiiu and tarsi 

 dusky : abdonien honey-yellow. 



Length % nearly three-fifths of an iiieh ; 9 over four-fifths. 



In the form of the thorax it is more like M. bimaniidfus nob., 

 than mdiijimilia, but it is greatly superior in magnitude to either, 

 and very distinet as a species. 



ACANTIIOCINUS Meg. 



A. QUAi>iU(iiuuus. — Antennae annulate; thorax four tulnr- 

 cled ; elytra with a cinereous spot on each. 



Inhabits Louisiana. 



Uody dark brownish, when closely examined, varied with fer- 

 ruginous and cinereous, short, prostrate hair: antennae hardly 

 longer than the body, blackish ; the joints, excepting the ba!<al 

 ones, reddish cinereous at their bases ; basal joint clavate : head 

 before remotely punctured; behind the eyes, small, numcroua 

 punctures : labrum dull honey-yellow : thorax with distant jtunc- 

 tures ; four tubercles nearly in a transverse line, and a longi- 

 tudinal, elevated line : elytra quadrigibbous at base ; inner 

 gibbosity extended into a longitudinal elevated line, gradually 

 declining and terminating before the tip ; numerous, distant, pm- 

 found, punctures; a dilated, undulated, cinereous spot, before 

 the middle ; a sutural series of alternate, (juadrate, small brown 

 and cinereous spots, nearly opposite; tip emarginate: thigh? 

 clavate. 



Jjcngth less than three-tifths of an inch. 



For an opportunity to described this species, I am indebted to 

 Air. Joseph IJarabino, who obtained it near New Orleans. 



[Belongs to AanithihlrrcA. — Lec] [196] 



TETRAOPES Sehbnh. 

 T. TORNATOR Fabr. — This species is subject to vary. I ob- 

 tained an individual near the Rocky Mountains, so covered with 

 short whitish hair as almost to conceal its color; it was destitute 

 of the large black spot of the elytra. Two 8i)ecimens occurred 

 in Mexico, both of which were destitute of the same spot T» 

 is the T. tttiDptlmlmus Forster. 



