REVISION OF LISTROCHELUS SAYLOR 105 



shorter than the funicle, but the majority of characters ally it with 

 this species and the genitalia are apparently identical. There is some 

 Uttle variation in the Mexican specimens, and the extremes in size 

 and color look quite different superficially, but all essential characters 

 are apparently exactly similar, and in several instances the extremes 

 have been collected together. 



PHTLLOPHAGA (LISTROCHELUS) MEADEI. new species 



Figures 4, c; 12, j-l 



Male. — Antennal club testaceous and slightly longer than the 

 rufous funicle. Clypeal apex weakly reflexed. Thorax with a small 

 irregular median smooth area. Fifth abdominal segment at apex 

 weakly incised, not longitudinally impressed ; sixth with faint trace of 

 the impressed longitudinal line. First two hind tarsal segments 

 subequal in length. All three teeth of front tibia strongly developed 

 and equidistant. Otherwise, all characters are the same as described 

 for L. cavata. 



Female. — Antennal club much shorter than the funicle. Pygidimn 

 plane on disk, widely and transversely gibbose just before the rather 

 acuminate apex (especially evident in lateral view) ; disk very sparsely 

 punctate; apical margin itself slightly incised and the sides expanded 

 a bit so as to form two very blunt teeth, which are separated from 

 each other by a moderately broad and rather shallow emargination . 

 Apicol segment of abdomen convex and coarsely punctate and having 

 only the faintest trace of a very small fovea at the middle apex 

 (absent entirely in a few specimens). All claws serrate along a single 

 margin with a large triangidar tooth nearly at the center. 



Length. — 12-14 mm. Width. — 6-7 mm. 



Types. — Holotype and allotype are from San Antonio in Durango, 

 Mexico, and were collected by Al Meade on June 10, 1937 [Saylor], 

 and are deposited in the National Museum (No. 53768). 



Paratypes: Males, 11 ; females, 19. Mexico: From the same locality 

 as the t3^pes [Saylor]; Torreon, Chiapas, June 14, 1937 (Meade) 

 [Saylor]; J. Manuel, El Salto, Durango, 9,300 feet, June 10, 1937 

 (Meade) [Saylor]. 



Remarks. — Described in the present revision since it is so closely 

 alUed with the rest of the L. cavata complex and may be expected to 

 occur within our borders. 



PHYLLOPHAGA (USTROCHELUS) COCHISA, new species 



Figure 12, a-c 



Male. — Rufotestaceous to rufocastaneous above, strongly shining. 

 Front moderately, not densely punctate. Antennal club subequal to 

 funicle. Thorax finely, densely, somewhat irregularly punctate, with 



