NO. 3568 MELANOTTJS — QUATE AND THOMPSON 41 



Melanotus Sagittarius. — Candfeze, 1860, p. 547. — Blatchley, 1910, p. 751. — Thomas, 



1941, p. 260.— Dietrich, 1945, p. 58. 

 Melanotus carinus Blatchley, 1910, p. 752; 1930, p. 35. [New synonymy.] 



Male. — Body color reddish brown, covered with yellowish vesti- 

 ture, evenly distributed over body. 



Head: Front with pair of shallow anterolateral or an anterior 

 transverse depression, margin angidate with blunt apex when viewed 

 from above, not strongly protuberant above clypeus; parantennal 

 fovea large and deep, as long as antennal segment 2, opening rounded, 

 foveal tragus weakly developed ; nasale protuberant, width 1 to iKo 

 times height. Mandible mth deep, teardrop-shaped pit. Antenna 

 exceeds tip of hind angle by 2 to 2K segments, reddish brown, ratio of 

 segments 2:3:4=3:6:9, flagellar segments rather elongate, segment 

 4 about twice as long as maximum width; erect male hairs long, 

 rather dense, and easily seen. 



Pronotum wider than long, ratio of width/length = l. 14(1.05-1.22); 

 punctures at center usually separated by distance equal to about 

 own diameter, subequal to size of those on front; sides of pronotum 

 nearly straight beyond small anterior cm*vature, sometimes with 

 slight concavity at base of hind angle. Genitalia as figured; paramere 

 with apical blade. 



Elytron: 9.90 ±0.54 mm (8.70-10.80). 50 spec. 



Female. — Antenna exceeds tip of pronotum by 1 to IK segments; 

 genitalia as figured, bursa with moderate number of peglike spines; 

 accessory gland little longer than bursa, arises weU before sperm duct; 

 sperm duct branches near base. 



Elytron: 10.2 ±0.9 mm (8.5-12.0). 31 spec. 



Types. — •Lectotype of Sagittarius: Male, labelled with white circle 

 "Eastern States & Canada" (MCZ). First specimen in type series 

 selected as lectotype by authors in 1962. Second specimen labelled 

 wiih pink circle "Middle States" is probably the type mentioned in 

 the description but is damaged and cannot be identified definitely, 

 so has not been selected. There appears no question that LeConte 

 studied the first specimen and that it agrees with current interpre- 

 tation of Sagittarius, and its selection as the lectotype will fix the name 

 of the species without disturbing the present nomenclature. 



Holotype of carinus: Male, Lake Co., Ind., June 4, 1905 (PU). 



Distribution.- — New York to Florida and west to Illinois. 



Florida: Pinellas; February, April. Illinois: Putnam; July. Indiana: 

 Marion; May. Maryland: Baltimore; July. Massachusetts: Hampshire, 

 Middlesex; June, July. Mississippi: George; April. New Jersey: Middlesex; 

 July. New York: Dutchess, Rockland, Tompkins, Westchester; June, July. 

 Ohio: Athens; June. Pennsylvania: Allegheny, Bradford, Monroe; May, 

 July. Virginia: Page; July. West Virginia: Hardy; July. 



