32 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



Elytron: 8.0 ±0.5 mm (7.1-8.8). 18 spec. 



Types.— Lectotype: Female, "I11./477" (MCZ). First specimen 

 in type series selected as lectotype by authors in 1962. 

 Distribution. — Indiana and ]\Iississippi, west to Kansas. 



Arkansas: Hempstead; May. Illinois: Greene, Marion, Rock Is.; May, 

 June. Indiana: Owen; July. Iowa: no other data. Kansas: Linn, Mont- 

 gomery, Riley; June. Louisiana; ? Co.; May. Mississippi: George, Greene; 

 May. Montana: Boone, Callaway, Clinton, Jackson; May, July. 



14. Melanotus clandestinus (Erichson) 



Figure 5/ 



Cratonychus clandestinus Erichson, 1842, p. 112. — LeConte, 1853, p. 474. 

 Melanotus clandestinus. — Candfeze, 1860, p. 343. — Thomas, 1941, p. 258.— 



Dietrich, 1945, p. 55.— Fattig, 1951, p. 20. 

 Melanotus peninsularis Candfeze, 1889, p. 46. — Fattig, 1951, p. 22. [New 



synonymy.] 

 Melanotus perplexus Blatchley, 1920, p. 46; 1930, p. 44.— Fattig, 1951, p. 22. 



Male. — ^Body color reddish bro^\^l, head and pronotum usually 

 darker than appendages and elytra, covered with white (sometimes 

 yello\\dsh) vestiture evenly distributed over body. 



Head: Front with prominent anterior transverse depression, margin 

 strongly protuberant above clypeus, a little angulate and blunt across 

 center when viewed from above; parantennal fovea obsolescent, 

 nasale not at all developed. Mandible without pit. Antenna ex- 

 ceeds pronotum by 1-lK segments, ratio of segments 2:3:4=2:2:7, 

 segment 4 about Iji as long as maximum width; erect male hairs 

 long and very dense. 



Pronotum about as long as wide (variable and apparently Texas 

 specimens usually narrower), punctures very dense and subequal to 

 those on front, vestiture little finer than on elytra; sides rounded, 

 with slight concavity at base of hind angles; hind angle subparallel, 

 each with sii:igle carina extending slightly beyond base of hind angle. 



Genitalia as figured; paramere without apical blade. 



Elytron: 5.9 ±0.5 mm (5.0-6.9). 47 spec. 



Female. — Unknown to us. 



Types. — Lectotype of clandestinus: Male, "Amer. Sept." No. 

 17056 (ZM). Selected by Quate, 1960. One other specimen in type 

 series. 



Lectotype of peninsularis: Male, "Florida, ex. coll. Morrison" 

 (Roy. Mus. Nat. Hist., Brussels). Selected by Quate, 1960. Eight 

 other males in type series. 



Holotype of perplexus: Male, Dunedin, Fla., July 5, 1915, W.S.B. 

 (PU). 



Distribution. — New Jersey south to Florida and west to Texas. 



