80 PHILHYDRlDA. — HETEROCERID^E. 



drate and margined : legs long ; tibiae slender, not spinous ; tarsi long, 

 4- or 5-jointed. 



Fam. 13 HELOPHORiDiE. Ant. 9-jointed, rather abruptly perfoliate-clavate, 

 the club somewhat serrated : mand. not toothed at the tips : max. palpi 

 very long : body oblong, flattish : tho. rather 4-drate, rarely orbicular : 

 tibiae slightly spinous; tarsi 5-jointed, filiform, not ciliated, basal joint 

 minute. 



Fam. 14 Hydrophilid^e. Ant. 6-, 9-jointed, perfoliate-clavate, club dis- 

 tinctly cleft : mand. 2-dentate at the tip : max. palpi very long, usually 

 filiform : body oval, frequently globose : tho. short, transverse : tibia; 

 slightly spinous ; tarsi 5-jointed, filiform, the basal joint minute, the 2d 

 longest ; hinder pair often ciliated. 



Fam. 15 Sph^eridiiduE. Ant. short, 9-jointed, basal joint very long, 4 next 

 short, the rest forming a compressed perfoliated club : max. palpi as long 

 as ant., 2d joint thickened: head round in front: tho. transverse: body 

 more or less hemispheric : tibia compressed, spinous ; tarsi 5-jointed, filiform, 

 basal and terminal joints long, last with 2 unequal claws. 



Fam. 16 Akisotomid^:. Ant. 1 1 -jointed, longish, slender at base, terminating 

 in a club, of a variable number of joints : palpi short : head small, ovate : 

 tho. more or less gibbous : body convex, orbicular or globose, never linear : 

 tibice often spinous and compressed; tarsi various 4- (rarely 5-) jointed, 

 or heteromerous. 



Fam. 10. HETEROCERID.E MacLeay. 



cvi. Heterocerus Ant. with the 7 terminal joints forming a serrated club: 

 palpi short, 3-jointed : body ovate, pubescent. 



106 Heterocerus Bosc. 



619 marginatus Fab. E. i. 355. — Sam. pi. 3. f. 11. — Ste. M. ii. 100 



Dusky ; pubescent ; finely punctured : elytra with the margin and several 

 irregular spots on the disc, more or less united, or wanting, pale dull-red ; 

 tarsi testaceous ; antenna? pale, with the club dusky ; anterior angles of 

 the head sometimes reddish. (L. 1^-2^ 1.) Near London, and N. West 

 coasts of England ; Aberystwith, &c. : 4. 



620 flexuosus Ste. M. ii. 101. — Fuscous; pubescent; finely punctured: 

 elytra yellowish, with a longitudinal flexuous stripe, composed of irregular 

 black spots, a black streak at the shoulder, and a faint one near the 

 suture, towards the apex, which last is spotless; tarsi pitchy. (L. 2 1.) 

 Near Gravesend : 5. 



Var. ? He. Marshami Ste. M. ii. 101. — Dusky-black; very pubescent: 

 thorax with a small obscure yellowish spot in the middle of the base ; 

 elytra with a similar spot near the tip; legs yellowish. (L. If 1.) Banks 

 of Humber? 6.? 



621 laevigatus Fab. E. i. 356. — Pz. F. xxiii. f. 11. — Ste. M. ii. 101. — 

 Fuscous, shining; finely punctured, and slightly pubescent : elytra with 

 the outer edge and several large, squarish, pale yellowish spots, disposed in 

 3 irregular bands on the disc ; legs pale-testaceous; tibia? dusky : thorax 

 sometimes with a pale spot at the anterior angle; the abdomen at times 

 testaceous, and the spots on the elytra more or less united, or obscured. 

 (L. l|-2i 1.) Wandsworth Common; and in Norfolk and Suffolk. 



622 obsoletus Curtis, v. pi. 224. — Ste. M. ii. 102. — Black ; shining ; 

 finely punctured and pubescent : thorax with a yellowish spot on each side 

 at the anterior angle ; elytra with about 7 or 8 pale ochreous or reddish 

 spots, placed 1 (sometimes wanting) near the scutellum, 3, 1 curved, and 



