AMERICAN HEMIPTERA 17 



rugated. Color dull brown, varied with ash grey and ferrugfinons, and covered 

 in places with a close grey pubescence. Head more strongly deflexed than in 

 forpida, with the cheeks more tumid above and narrower at apex, their sides 

 very feebly sinuated ; surface of tiie bead blackish clothed with greyish pubes- 

 cence, the tumid disk of the cheeks and tylus obscure fulvous. Antennte rather 

 slender, black with pale incisures, basal joint very short, second about as long as 

 the fourth, reaching about to the apex of the head, third scarcely longer than 

 the basal, fifth longest. Eostrum black, reaching to the base of the abdomen. 

 Prouotuui very uneven, strongly constricted a little before the middle; posterior 

 lobe moderately convex, with a median and two somewhat irregular longitudinal 

 cariuffi on either side, all of which are common to the anterior lobe, where they 

 diverge a little; anterior lobe convex on tiu^ middle, this elevated portion trans- 

 versely impressed and forming almost a hood over the base of the vertex ; surface 

 more depressed toward the anterior angles, the sides deeply sinuated, forming a 

 right angle before the prominent tumid shoulders; the surface is pale on the pos- 

 terior lobe and raised areas, and blackish in the depressions of the anterior lobe. 

 Scutellum suhquadrate. broadly rounded behind, not quite covering the connexi- 

 vum ; surface roughly pitted and corrugated, with an uneven semicircular carina 

 at base enclosing a depressed area which is bisected by the subcarinate medium 

 line, this line forms a tubercle at base and connects with a .square apjcal area; 

 surface a little depressed at base near the lateral margins. Pleural pieces black, 

 greyish pubescent, the prominent shoulders forming an angular projecting shelf 

 on either side beneath. Venter blackish brown, sparcely grey-pube,scent, with a 

 row of pale spots within the stigmata, and a whitish tubercle at each incisure on 

 the edge of the abdomen. Legs black, knees and a broad baud on each tibia pale. 

 In fully colored exanii)les there is a pale basal patch on either side of the disk of 

 the pronotum, another on either side of the base of the scutellum invading the 

 exposed base of thecoriuin. a square s]iot on the scutellum circumscribed with 

 blackish, and an indefinite area anterior to this. All these areas are ill-defined 

 except the square apical i)atch. The pale niedian carina is generally well defined 

 and intensified by darker on either side. Length, male 5 mm. ; female 6A mm. 



Colorado. Desci'ihed from two male and four female examples 

 taken at Fort Collin.*, in June and August, by my good friend, 

 Elmer D. Ball. Those taken in June were accompanied by their 

 pupa cases, indicating that they reached maturity at that season. 

 Phimodera iorpida is less convex both above and below, the body 

 is more narrowed posteriorly, the pronotum is more feebly impressed 

 and not so strongly elevated over the base of the head, the sides are 

 much less deeply sinuated, and all the irregular carinate lines and 

 cori'ugations that cover the whole u})|)er surface in corrngata are 

 wanting. In both torpida and coTrugata the posterior trochanters 

 are unarmed. I regret that it has been impossible for me to com- 

 pare corrvgata with the descriptions of some of the Siberian species 

 j)ublished by Jakowleff. 



TRANS. AM. ENT. SOC. XXX. (3) FEBRUARY. 1904 



