226 NEW NORTH AMERICAN DECTICINAE 



Typc—d"; Crestline, Lincoln County, Nevada. Elevation, 

 GOOO feet. September 4, 1909. (Rehn and Hel)ard; in juniper 

 {Jumperus utahensis) .) [Hebard Collection, Type no. 540.] 



Size medium: form rol)ust, micropterous, with pronotum produced and 

 (uioullate, much as in A. oval us (the genotype): surface smooth, of prono- 

 tum distinctly pohshed over numerous rugulosities. 



Head well seated in the pronotum, short, deep, from cephalic aspect seen 

 to be distinctly inflated in the ventral portion of the genae, the greatest width 

 of the head across genae apparently greater than that across eyes; face in pro- 

 file weakly convex; occiput arcuate longitudinally and transversely, regularly 

 declivent cephalad to the apex of the fastigium: fastigia of the vertex and 

 of the face not in contact, separated by an interspace which is triangular when 

 seen in profile; fastigium of the vertex with the disto-lateral margins distinct 

 and converging, when seen from the dorsum the apex is broadly blunted; 

 dorsal surface of fastigium with a narrow, sinuate median sulcus; fastigium 

 of the face blunt tuberculate. Eyes moderately prominent; in basal outline 

 short ovoid. Antennae rather heavy, in length somewhat surpassing the 

 body; proximal joint slightly broader than long, decidedly depressed. 



Pronotum strongly cucullate and appreciably inflated, considerably de- 

 veloped dorsad of the base of the abdomen, the greatest dorsal length of the 

 pronotum about three-fourths that of the caudal femora. In profile the 

 dorsal outline of the pronotum is weakly concave and subsellate cephalad, 

 distinctly and rather strongly arcuate caudad from the cephalic sulcus; when 

 seen from caudal aspect the disk is appreciably tectate transversely. Disk 

 of pronotum with the mesozona and metazona together ovoid in outline, 

 the broadest point of disk at three-fifths of entire pronotal length, the great- 

 est width contained one and one-half times in the greatest length of the pro- 

 notum, the width of disk on prozona about two-fifths of the greatest width 

 of the mesozonal disk: cephalic margin of disk of pronotum subtruncate; 

 caudal margin and caudal portions of lateral margins regularly semi-ovate, 

 the lateral margins obsolete on the prozona, sharply and arcuately developed 

 on the mesozona, thence regularly diverging to the point of greatest width 

 of disk; lateral and caudal margins of disk thickened, substrumose on the 

 mesozona and cephalic section of the metazona, elevated and smooth else- 

 where on mesozona: median carina virtually obsolete on the prozona, weakly 

 indicated on the mesozona and distinctly and continuously indicated on 

 the metazona: surface of the mesozona of the disk rugulose, of the metazona 

 arcuately buUate both transversely and longitudinally, the sculpture decided 

 and made u|) of fine transversely vermiculate rugulae; a weak depressed 

 internal (ihamiel borders the lateral carinae of the disk, this becoming more 

 decided and much more evident caudad: transverse sulci distinct, the cei)hali(^ 

 alone cutting the carinae. Lateral lobes of the pronotum of the deep type, 

 without distinct humeral sinus indiciations, charactcsristic of the genus: greatest 

 dejjtli of lateral lobes at cephalic fifth, contained two and one-half times in 

 the dorsal length of the same: cephalic; margin of lobes sinuato-truncate, 

 V(!n(ro-c('ph:ili<' angle broadly routided, vcniral margin sinuate, ascending 



