Clje Canadian d^ntomolorgbst 



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, 

 antennae 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, flat, 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 picta 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 



