SCARAB BEETLE GENUS PSAMMODIUS — CARTWRIGHT 425 



of punctures apparently independent of the strial punctures. Meta- 

 sternum smooth and shining at middle, median line sharp and distinct, 

 much deeper at each end, the anterior end extending well forward be- 

 tween the middle coxae, anterior postcoxal line with inner end remote 

 from the coxae, strong, extending outward to scabrous area at side, 

 posterior line deep and distinct. Abdominal segments unusually con- 

 vex, shining but minutely alutaceous, very finely crenate along anterior 

 margin and finely margined along posterior edge, each with a median, 

 transverse row of moderate, setigerous punctures, the setae fine, mod- 

 erately long, terminal segment with scattered fine punctures, widely 

 crenate anteriorly. Pygidium alutaceous, fringed apically with mod- 

 erately long setae. Anterior femur with a strong, deep, anterior mar- 

 ginal line. Middle and posterior femurs smooth, shining, with strong, 

 entire, posterior marginal line, and with the usual curving row of three 

 or four setigerous punctures near the knee. Posterior femur one-fifth 

 wider than middle femur. Posterior tibia three times as long as wide 

 at apex, spurs narrow, long spur subequal to first two tarsal joints in 

 length. First tarsal joint elongate-triangular, as long as following two 

 combined. Length 3.3 mm., width 1.5 mm. 



Type: In British Museum (Natural History). 



Type locality: "Mexico, Presidio (Forrer), Jalapa, Mexico City 

 (Hoge)." 



Specimens examined. — A cotype from Jalapa, Mexico. 



RExMarks: This species is very close to interruptus Say and even- 

 tually may be found to be identical; however, the single specimen 

 examined is much darker in color, the alutaceous sculpture much more 

 distinct, the coarse punctures of the pronotum more distinctly defined 

 \vith intervening areas smoother, and the abdominal segments more 

 convex. 



Psammodius saltilloensis, new species 



Holotype oblong oval, slightly broader behind, moderately shining, 

 ferrugineous. Antennae rufotestaceous. Head convex, rather finely 

 verrucose; occiput smooth, a few fine to moderate punctures above 

 each eye. Clypeus moderately, deeply, rather broadly, triangularly 

 emarginate, the limiting angles rounded each side, sides and angles 

 finely reflexed, sides weakly arcuate; genae fimbriate, small, broadly 

 rounded. Pronotum not narrower in front, width 1.4 mm., length 

 1.0 mm., anterior angles rounded, nearly right-angled, posterior angles 

 distinct, obtusely rounded, sides weakly arcuate, base finely, indis- 

 tinctly margined, sides and base crenate, fimbriate with moderate, 

 obtuse setae; surface roughly sculptured throughout with close, mixed, 

 fine, medium, and coarse punctures, four transverse and median longi- 

 tudinal furrows lightly impressed and indistinctly indicated by closer, 

 coarser punctures, convexity beyond lateral fovea with more elongate 

 punctures, anterior angles rather widely, closely, tuberculate-aluta- 



