102 CALIFORNIA ACADEMY OF SCIENCES. 



apex somewhat truucate. Posterior coxae small and subtriangular, oblique. 

 Abdomen: ventral segments six; fifth and sixth movable. 

 Spiracles situated upon the inner edge of the inflexed portion of the 

 ventral segments except the posterior one, which is in the suture, where the 

 propygidium meets the fifth ventral segment. The middle and hind tibiae 

 have each two oblique carinas across the middle portion, and their apices are 

 expanded and digitate. 



Middle tarsi moderately stout, first joint more robust, the second and third 

 of equal length, and the fourth shorter. 



Hind tarsi shorter than those of the middle pair; more robust 

 and more equal in length. 

 Propygidium regularly rugose, what might be called reticulate. 

 Pygidium very obtusely and evenly rounded in the male. 



Anoplognatho Dunnianus sp. nov.— Elongate-oval, convex, broader 

 behind. Clypeus triangular, with the sides slightly emarginate, tip 

 rounded, upturned; the edge carries a raised margin that meets the 

 sutural line, which increases in hight towards the middle, but is cut by 

 a slight depression in the center, giving the outline of a double curve. This 

 character, however, is not constant. There is no other urmature on the 

 head. Vertex rugoseiy punctate, as is the depression forming the area of 

 the clypeixs. Prothorax transverse, narrower in front, angles pointed, sides 

 reflexed, partly reticulated but flattened before reaching the hinder angles; 

 hind margin well defined part of the way across from the angles, but con- 

 tinued over the middle by punctures only. The middle of the disc towards 

 the hind margin is free from punctures, but towards the side margins they 

 become closer and merge into each other, while at the front angles 

 they form a densely rugose surface. Elytrre elongate-oval, wider behind the 

 middle, and covering the propygidium; the sutural margins near the apex 

 appear depressed, but it is caused by ^^™^™^™ the bulging on either 

 elytron by the usual broad tubercle; ^Q^^^M^| there ure three series of 

 obliterated strijB, the two inner sets E^^^nRyfl being doiible, and occu- 

 pying an oblique course from base KA^HMfl to apex. Pygidium very 

 obtusely rounded. Front tibi;i? HH^hII strongly sinuate. Be- 

 low, the various parts are clothed HSMHHM with h;iirs placed in lines; 

 the color is deep chestnut. Above, ^H^Hfll the surface, particularly 

 of the elytr^e, becomes almost smooth ^^H^l^^l and shining; the color is 

 brownish black, Inclining to a chestnut tone towards the hinder part of the 

 elytrse. 



Length .9.^-1 inch. 



Female generally smaller, with the sidesof the elytrae more parallel; it ismore 

 convex than the other sex, the elytrte shorter ?io< covering the propygidnm, and 



H smoother. Pygidium obtuse but not evenly bulging, because the 

 lower part is incurved and margined by a bold edge. Front tibiae 

 strongly tridentate. Length .75- .95 In^'h. 



Locality: El Paso, Texas. 



