THE CANADIAN ENTOMOLOGIST 129 



in outline as fig. 6. Anal spines, (fig. 7) three in a triangle, with proximal 

 base and distal apex, slightly curved, sharp, three-fifths length of hind ungues, 

 on low papillae. The anal and genital segments bear many long straight setae 

 with conspicuous round heads, and a few simple setae interspersed. Clothing 

 (fig. 8) a few short curving setae. Integument finely tuberculate. Maximum 

 length, 1 mm. Found under bark, April and October, near Arnprior, Ontario. 



Compared with the powerful springing apparatus of an expert leaper 

 like Isotoma palnstris Mull., the furcula of Friesea sublimis appears small and 

 weak. Nevertheless it is much better developed than in any other known mem- 

 ber of the genus, and it is that that chiefly distinguishes the new species. The 

 furculas of all other described Frieseans are little more than rudimentary, but 

 with F. sublimis, though short, it is actually functional, and I have seen them 

 leaping a distance of two or three inches, though they seldom indulge in the 

 practice. The maxilla as shown in fig. 3 is a conspicuous object in the head 

 when the specimen is depigmented. 



As usual, I am much indebted to Dr. J. W. Folson of the University of 

 Illinois for advice and assistance in describing this species. 



Explanation of Plate V. 



Fig. 1. Eyes of left side, x 600 



2. Left antenna, x 1200 



3. Maxilla, x 900 



4. Left hind foot, x 1500 



5. Dens and mucro, x 1000 



6. Tenaculum in outline x 1500 



7. Anal segment showing spines and capitate setae, x 800 



8. Clothing of first abdominal segment, x 1000 



MISCELLANEOUS STUDIES IN THE COLEOPTERA— NO. 1. 



B^' FRANK E. BLAISnELL, Sx. 

 Stanford University, Calif. 

 The following new species and races of American Coleoptera were found 

 among a number of other specie's recently submitted to me for identification. 



Listrus provincialls, New Species 

 Form oblong-ovate, about three times as long as wide and slightly robusl. 

 Colour black; moutli-parts. antennae and tarsi more or less piceous ; second 

 antennal joint frequently paler. 



Pubescence moderate in length, recumbent, linear and subsquamiform, quite 

 dense and argenteo-plumbeous to luteo-cinereous in colour. Dark hairs arranged 

 as follows : basal parascutellar and humeral macules very small or obsolete ; 

 post-basal macule at middle of each elytron, small and irregularly rounded: a 

 rather ^^lenaer transverse submedian fascia slightly behind the middle, zic-zac, 

 and scarcely attaining the lateral margin or suture; subapical fascia similar ot 

 broken inio two macules on each elytron; apical macules very feebly indicated or 

 obsolete. Median pronotal macule more or less broken into four parts, two 

 small anterior dots and two larger and slightly elongate, posterior dots; lateral 



