1916] Nearctic Species of Paracalocoris 369 



inner side invariably is appressed. In specimens having the 

 pile of hind tibiae mostly rubbed off, the presence of a few 

 OMtstandiyig hairs on inner side of tibiae usually is sufficient 

 indication that the specimen belongs to the scrupeus group. 



Measurements:* Total length 6-7.5 mm.; width of thorax 

 across front .7-73 mm., across posterior angles, 1.73-2.3 mm., 

 length of thorax (seen from side) 1.16-1.6 mm.; length of 

 antennal joints; first, 1.6-1.63 mm., second 1.9 - 2.66 mm., third 

 .7-.9 mm., fourth .83-.9 mm. 



Range: The specimens examined came from the region 

 marked off by the following states: New York, North Dakota, 

 Texas and Virginia. 



Paracalocoris scrupeus divides into numerous color varieties, 

 of which those seen may be separated as follows: 



a. Costal margin of hemelytra of about the same color as disc of corium; cuneus 

 sometimes dusky red. 

 b. Thorax with dark markings in addition to the discal spots. 



c. Thorax with typical dark markings, that is: portion anterior to discal 

 spots or less piceous or only dusky, and usually piceous dots or more or 

 less dusky clouding near posterior angles. 



d. Corium fusco-piceous var. scrupeus Say. 



dd. Corium dark red, cuneus a little lighter var. ruhidus n. var. 



cc. Thorax otherwise marked. 



e. Thorax very dark. 



f. Scutellum mostly yellowish or reddish; thorax all dark above 

 except for a median and two lateral areas in line with the discal 



spots var. triops n. var. 



ff. Scutellum dark. 



g. Scutellum piceous; thorax with two lateral yellow areas. 



var. diops n. var. 

 gg. Scutellum dusky with median light vitta, spots on clavus and 



coritim yellowish red var. delta n. var. 



ee. Thorax all light, except for indistinct vittas and dusky maculations 

 from discal spots to posterior margin, and between these and lateral 

 margins; a broad pale vitta traversing scutellum, thorax and top 



of head; corium yellow brown var. perciirsus n. var. 



bb. Thorax without definite dark markings in addition to discal spots. 



h. Corium red-brown with yellow dots var. compar. n. var. 



hh. Corium except apex, and clavus except base and thin inner 

 margin, uniform orange red; the extreme form of 



var. ardens n. var. 



*Intended to show merely the ordinary range of variation. 



All measurements were taken with eye-piece micrometer in Zeiss binocular 

 using No. 1 eyepieces and A-2 objectives, which combination yields a magnification 

 of 20. The measurement, length of thorax, is taken with the insect viewed from 

 side and is the direct length from upper front to upper hind margin, disregarding 

 the curvature of dorsum. To have a definite point for beginning, the measurement 

 of first antenna] joint is always from constriction above basal knob. 



