28 MADEIRAN COLEOPTERA. 
Sectio II. PHILHYDRIDA. 
Fam. 4. PARNIDA. 
Genus 30. PARNUS. 
Fabricius, Ent. Syst. i. 245 (1792). 
80. Parnus prolifericornis. 
Parnus prolifericornis, Fab., Ent. Syst. i. 245 (1792). 
, Gyll., Ins. Suec. i. 139 (1808). 
—— ——,, Steph., Ill. Brit. Ent. ii. 103 (1829). 
—— —_, Woll., Ins. Mad. 90 (1854). 
Inhabits Madeira proper, occurring abundantly at the edges of the 
pools and Streams at nearly all elevations. It is found, likewise, in 
the Canarian Group. 


Fam. 5. HYDROPHILID. 
Genus 31. OCHTHEBIUS. 
Leach, Zool, Miscell. iii. 91 (1817). 
81. Ochthebius 4-foveolatus. 
Ochthebius 4-foveolatus, Mots., in litt. 
» Woll., Ins. Mad. 91 (1854). 
Inhabits the rivers of Madeira and Porto Santo; locally abundant. 


82. Ochthebius rugulosus, n. sp. 
O. ovatus eneus, capite prothoraceque profunde punctatis necnon 
(presertim illo) dense granulosis, hoc canaliculato, utrinque fovea 
brevi profunda subcurvata versus angulos anticos impresso, elytris 
rugose punctato-striatis. 
ine ae te 
Long. corp. lin, 14-11, 
O. ovate, brassy, and shining. Head and prothorax deeply, but not 
very closely, punctured : the former densely granulated ; and witha 
curved impression on either side of the forehead, between the eyes : 
the latter less granulated than the head; wide anteriorly, and with 
the sides somewhat straightened behind; with a dorsal channel, 
and a short, deep, distinct, somewhat curved fovea towards either 
anterior angle (which is more or less rufescent); and with just 
traceable indications of a curved transverse depression on the 
centre of its hinder disk. H/ytra rather acuminated posteriorly, 
