OF PHILADELPHIA. 145 



cljijeus ou the anterior margin reflected and emarginate at tip : 

 antennae bright yellow : thorax punctured, with short, numerous, 

 yellowish hairs ; a longitudinal, dilated, slightly indented line : 

 elytra finely iridescent, with dilated, punctured, impressed strise : 

 posterior feet robust. 



Length less than one-quarter of an inch. 



Knoch's name niicans is pre-occupied. My excellent and in- 

 genious friend Mr. John F. Melsheimer, makes the following re- 

 marks on this insect in a letter to me : " This insect is very nearly 

 related to M. sericea, but it is still sufficiently distinct, to entitle 

 It to the rank of a peculiar species. It abounds in hilly and 

 mountainous situations, where, in the month of May, the time of 

 the sexual union of the species, it may be seen flying about 

 amongst the whortle-berry bushes, in such profusion, that in a 

 very short time any number desired might be collected : whenever 

 a female alights upon the surface of the ground, she is imme- 

 diately surrounded by a number of males." 



[Also a Serica. — Lec] 



8. M. 10-LiNEATA.— Above covered with a yellowish down ; 

 thorax trilineate, and elytra quadrilineate with white. 



Inhabits Missouri. r247l 



Body reddish-brown, covered with a very short spiniforn; 

 down: clypeus quadrate, slightly wider at tip and truncate, 

 emarginate in the middle ; down yellowish, dusky on the tip, and 

 whitish above the eyes : antennae pale yellowish-brown, glabrous : 

 clava elongated, and composed of neven lamina : thorax with 

 yellowish-brown, and three longitudinal lines of white down, of 

 which the lateral ones are interrupted near the anterior tip: 

 scutel with white down, and glabrous margin : elytra with yel- 

 lowish down ; a common sutural line, and three others upon the 

 disk of each elytron of white down ; an abbreviated oblique white 

 line from the humerus : pectus and postpectus hairy : feet cas- 

 taneous, with white down ; thighs and intermediate and pos- 

 terior tibia, hairy behind ; venter with white down, more dense 

 upon the margins of the segments and in triangular spots each 

 side. 



Length nearly one inch. 



A large and beautiful insect, which I first saw above the Paw- 

 1811.] 10 



