228 THE CANADIAN ENTOMOLOGIST. 



Pedes. — First pair raptorial with incrassate femora^ grooved for the 

 reception of the tibiae, which are curved and furnished with a one-jointed 

 tarsus, destitute of claws. Second and third pair cursorial, with normal 

 femora and tibiae, with two-jointed tarsi, armed with moderately long, slen- 

 der claws. The tibiae are furnished with moderately long spines in two rows. 



Coloration. — Head flavous, with a dark median line of varying width, 

 sometimes reduced to a triangle at the vertex, and at others entirely absent 

 or very faint. Prothorax also flavous, the punctuations of the disk brown, 

 the flattened outer margin much lighter in colour ; the area caudad of the 

 suture, more or less variegated with perpendicular black lines of varying 

 widths. ScuteHum brown, the apex sometimes lighter in colour, 

 approaching to flavous ; some individuals have lighter vermiculations in 

 the disk. Hemelytra also brown, with lighter vermiculations, the ground 

 colour of varying shades ; the darker forms have two flavous spots on the 

 corium at the edge next to the membrane, which disappear in the lighter 

 forms. The embolium is testaceous, darkening caudad. The connexival 

 segments are black posteriorly. The abdomen varies from testaceous to 

 dark brown. The legs are concolorous except the spines, which are 

 darker and black- tipped ; the anterior legs are flavous, except the apex of 

 the tarsus, which is dark. Labrum flavous ; terminal segment of rostrum 

 darker at the lip. 



Measurements. — Head, ^ , long., 1.5 to 1.7 mm.; lat., 2.6 to 2.9 mm. 

 9 , long., 1.8 to 1.9 mm.; lat., 2.8 to 3 mm. Pronotum. — $ , long., 1.7 to 

 2 mm.; lat., 4 to 4.6 mm. $ , long., 1.9 to 2 mm.; lat., 4.5 to 4.7 mm. 

 ScuteHum. — ^, long- (measured from prothoracic groove), 1.3 to 1.4 

 mm.; lat., 2.3 to 2.7 mm. $ , long., i 4 to 1.5 mm.; lat., 2.7 to 2.9 mm. 

 Insect. — (^ , long., 8.2 to 9.3 mm ; lat., 5 to 5.5 mm. 9, l'^"g-, 9 3 to 

 9.6 ; lat., 5 6 to 6. 1 mm. 



Described from 8 males and 8 females taken by Mr. C. S. Brimley, 

 at Lake Ellis, Havelock, N. C., and two carded specimens from Blanfort, 

 S. C, in the American Museum of Natural History collections. Types 

 in U. S. National Museum ( $ and ^ ), American Museum of Natural 

 History (two carded specimens mentioned above), collection C. S. Brimley 

 ( ^ and ? ), and my collection. 



This bug differs from the species recognized as Pelocoris femoratus, 

 Pal., Beauv., in its smaller size, more slender shape, the cleft female 

 genital segment, the more densely punctate and stouter prothorax, and the 

 more noticeably flattened prothoracic margins. Mr. Brimley says of this 

 water-bug* : " Among the Hemiptera the only form of note was a 

 Naucorid, which fairly swarmed in the lake among the water-weeds." 

 The lake referred to is Lake Ellis. 



*Ent, News, xvii, No. 3, p. 85, March, 1906, 



