REVISION OF LISTROCHELUS — SAYLOR 111 



apical third and rather coarsely punctured thereon, with much finer 

 punctui'es basally; sixth as long as preceding, somewhat convex, with 

 dense and coarse punctures, and moderately long and erect hairs. 

 Hind tarsus distinctly shorter than their tibiae. All claws serrate 

 along a double margin (20 X) and with a somewhat larger tooth at 

 the middle. Otherwise as in the male. 



Length. — 10-13 mm. Width. — 5-6 nma. 



Types. — Holotype male from Wichita Mountains Wildlife Refuge, 

 Oklahoma, April 1938 (Frank McMurry) [Saylorl and allotype 

 female from Austin, Tex., July [Saylor]; both are in the United States 

 National Museum (No. 53773). 



Paratypes: Males, 16; females, 2. Oklahoma: Headquarters site, 

 Wichita Mountains Wildhfe Refuge, May 11, 1938 (Frank McMurry) 

 ISaylor and U. S. Biological Survey]; Wichita Mountains, April 16, 

 1918 (R. Kuntz) [Univ. Oklahoma]; Wichita National Forest, May 3, 

 1936 [Saylor]. Texas: Austin, June and July [Saylor]. 



Remarks. — This hairy Httle species is abundantly distinct from all 

 other United States species of the group, and the small robust body 

 and shining surface, with the dense long hair of the entire dorsal surface 

 readily distinguish it. Named for Frank McMurry, of the U. S. 

 Biological Survey, who collected the Oldahoma specimens and trans- 

 mitted them to the writer. 



PHYLLOPHAGA (LISTROCHELUS) DUNCANI (Barrett) 



Figure 6, g, h 

 Lisirochelus duncani Bahrett, Can. Ent., vol. 65, p. 129, 1933. 



Male. — Oblong-oval, shining above, sparsely pilose, rufotestaceous, 

 head and thorax rufous. Head with front and clypeus coarsely, very 

 rugosely punctate, punctures of front variolate and nearly contiguous, 

 those of clypeus smaller and much denser at the center of disk, front 

 and clypeus with sparse, short, erect hair; transverse occipital ridge 

 moderately sharp and distinct, entire ; clypeus moderately reflexed and 

 very slightly emarginate at apex, angles broadly rounded. Antenna 

 10-segmented, 3-5 subequal, 6 and 7 transverse, club lighter in color 

 and nearly one-third longer than funicle. Thorax very finely, rather 

 regularly punctured, with a broad, median, impimctate strip, disk 

 apparently glabrous except for several minute hairs at center of base; 

 front and hind marginal lines entire, that of front margin greatly 

 widened; lateral margins coarsely crenate, ciliate, hind and front 

 angles obtuse but evident, not prominent. Elytra finely wrinkled, 

 very finely sparsely punctate, with minute semierect hair; sutural 

 striae wide and prominent, elytral disk with one strongly oblique 

 stria running from inside the humeral umbos toward the sutural stria 

 and fading out just before reacliing the latter. Pygidium convex, 



