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© Che Canadian Entomologist. 
VOL. V. LONDON, ONT., APRIL, 1873. No. 4 
NOTES ON CASNONIA LUDOVICIANA, SALLE. 
BY S. V. SUMMERS, M. D., NEW ORLEANS, LA. 
Long, .30-.33 inch. Body elongated, glabrous, sanguineous, pilose. 
Head, disk of prothorax, and under surface black; head rhomboidal, 
middle wider than thorax, thence gradually constricted into a narrow 
rufous neck; eyes large and prominent; mouth parts, three basal joints, 
antennæ and legs rufous ; eighth and ninth joints of antennae white, 
remaining joints black ; prothorax elongate, cylindrical, piceous; humeral 
base and apex rufous, widest just behind middle, when viewed vertically 
two fine long yellowish erect hairs will be observed to arise laterally just 
before the middle, much longer than on elytra.  Elytra faintly striate, 
striae with fine distant punctures, from each arise a single yellowish erect 
hair ; intervals smooth, fiat, elytral constriction at humeri narrower than 
middle of thorax, humerus slightly elevated, angles rounded, a wide black 
band on middle of elytra, sinuated above, arcuate below, apex truncate 
and tipped with black; knees darker than femora, posterior thigh with 
outer two-thirds black. 
I am unable to detect any sexual dissimilarity. 
Its larger size and finer punctured striae before band on elytra, and 
the white eighth and ninth antennal joints, easily distinguishes it from 
pennsylvanica. The Californian ficta is unknown to me. 
Habitat New Orleans, La. Mexico. Rare. 
This charming addition to our North American fauna appears first due 
to M. Salle, of Paris, France, who (if I am correctly informed) about 
forty years ago took a unique near an old Saw Mill, in N. O. 
Subsequently, none others were known to occur until 1861, when an indi- 
vidual was attracted by the lamp of a Mr. Speck, which ultimately became 
the property of Mr. Salle, making the second specimen in all Europe. 
Mr. Trabranelt, a diligent collector who has resided here some eighteen 
