HYDROPHILIDjE. LIMNEBIUS. 121 



Sp. 5. nigricans. Oblongo-ovatus, obtusas, niger, Icevis, nitidiusculus, pedibus 



piceis. (Long. corp. § — lj lin.) 

 Dermestes nigricans. Mar sham. — Li. nigricans. Steph. Catal. p. 58. No. 592. 



Oblong-ovate, obtuse, smooth, slightly glossy-black, the margins of the thorax 

 and of the elytra concolorous ; the legs and antennae pitchy. 



It varies in being of a pitchy testaceous hue, with the antennae and legs paler : 

 probably immature. 



Not an uncommon species near London ; and I believe in other 

 parts. " Common near Kimpton.'" — Rev. G. T. Rudd. " Botti- 

 sliam." — Rev. L. Jenyns. " Glanville's Wootton." — J. C. Dale, 

 Esq. 



Sp. 6. lutosus. Oblongo-ovatus, nigro-fuscous, elytris ohsoletissime punctato- 



striatis, pedibus piceis. (Long. corp. f lin.) 

 Hy. lutosus. Marsham. — Li. lutosus. Steph. Catal. p. 58. No. 593. 



Oblong-ovate, dusky-black, or brown, with elytra very obsoletely punctate- 

 striated, the legs piceous : the thorax rugose, with transverse elevated flexu- 

 ous lines. 



The obsoletely punctate-striated elytra well characterizes this species ; as well 

 as the rugosity of the thorax. 



This species I obtained from the Marshamian Cabinet. I am not 

 aware of its locality. 



Sp. 7. mollis. Ater, nitidus, thor ace elytris pedibusque fusco-testaceis. (Long. 



corp. ^ lin.) 

 Hy. mollis. Marsham. — Steph. Catal. p. 59. No. 594>. 



Ovate, slightly acuminate, rather convex, black, shining, with the thorax, elytra, 

 and legs testaceous brown, the margins of the former palest. 



The black head and abdomen of this minute species, as well as its inferior size, 

 distinguish it from all the foregoing. 



Li. mollis is not uncommonly taken in the ponds about London. 

 " Bottisham." — Rev. L. Jenyns. 



Sp. 8. picinus. Ovatus, acuminatus, subconvexus, piceus nitidus, thoracis mar- 



ginibus dilutioribus , pedihus pallide testaceis. (Long. corp. ^ lin.) 

 Hy. picinus. Marsham. — Li. minutus. Steph. Catal. p. 59. No. 595. 



Ovate, acuminate, slightly convex, shining piceous, the margins of the thorax 



rather paler, the legs pale testaceous, or rufescent. 

 This is known by its small size, superior convexity, and the acumination of its 



posterior extremity. 



Of this insect I have examined but one example, which I pro- 

 cured from the Marshamian Cabinet. 



