42 COLEOPTERA. 



The head in bulk is very nearly equal to the thorax, 

 nearly square behind the antennae, the upper surface being 

 depressed, and it is from this peculiarity of structure that 

 Mr. Waterhouse has given the insect its specific name ; it 

 may here be observed that he at first intended to call the 

 species H, flatyceiihalaj forgetting at the time the existence 

 of another species in the same genus under that name ; this 

 error was corrected in the diagnosis of the species, but es- 

 caped notice in the subsequent description, where the name 

 j)latycepliala still remains. 



The male has a small laterally compressed tubercle on the 

 upper surface of the sixth abdominal segment, and the termi- 

 nal segment with four denticles in the middle, the middle 

 pair nearest each other and most prominent, the external pair 

 slightly obtuse, and separated by a deep nearly semicircular 

 notch from a spine forming the lateral boundary of the plate. 



The basal joint of the hinder tarsi is, as in H. gregarluy 

 pretty distinctly longer than the three following joints ; in 

 which character these species are at variance with most of the 

 vvther members of the sfenus. 



12. HoMALOTA PUNCTiCEPS, Tliomson, Ofv. af Yet. Ac. 

 Forh. 1852, 133, 6 ; id., Skand. Col. iii. 49, 1 

 (Malobrectha) ; G. R. Waterhouse, Proc. Ent. Soc. 

 2 Feb. 1863, Zool. 8453 (1863), (nee Cat.). 



atricilla (Erichs.), Ktz. (in error). 



alg(Bf Hdy. and Bold. 



anthracina, Fairm.' 



This species, found under rejectamenta on the sea-shore, 

 resembles S. occulta, but with smaller antenna. It is 

 black, with the antenngg, palpi and legs more or less pitchy, 

 the former without any paler colouring at the base, and the 



