28 HYDROPHILID^. 



as L. cupreus; it is, however, now appai^ently recognised as a good 

 species by some authorities, and we therefore insert it as such. 



L. ytenensis. Sharp, Ent. Mo. Mag. xlvi, (2 Ser. xxi.) 1910, p. 250. 

 Oval, rather narrow, acuminate behind, black, with the base of the 

 antennse and the palpi yellow, t,he sides of the thorax rather narrowly 

 testaceous, and the elytra more or less dark, with the margins and 

 apex testaceous. The punctuation is close and distinct, but is not 

 arranged in evident rows ; the legs are yellow, with the posterior femora as 

 a rule, but not always, darker. Male with two lens-shaped shining spaces 

 on the labrum of large size and almost circular form, separated from one 

 another by a rather less space than the transverse diameter of one of 

 the spaces ; the middle femora have no spot of pubescence. L. 3^-4 mm. 



New Forest in profusion in September (Sharp) ; Devonshire (de 

 la Garde and Champion) ; Cornwall (Champion and Lamb ; the latter 

 found one specimen at Padstow). The species varies considerably in the 

 colour of the posterior femora, and to a certain extent in that of the 

 elytra. Dr. Sharp places it between L. oblo7i g us, Gorh. and X. regularis, 

 Rey., but it appears to be most closely allied to L. nigricejys, from which it 

 difiiers in the size, shape and distance of the lens-shaped spaces on the 

 labrum or "goggles" as Dr. Sharp calls them ; in L. 7iigriceps they are 

 much smaller, less circular and further apart. Captain Deviile has sent 

 us this species from Ponferrada. 



Ii. regularis, Rey. Ann. Soc. Linn. Lyon. 1884, xxxi., 1885, 14, 

 3^00. Very closely allied to L. oblongus, Gorham, but much darker in 

 colour ; the dark colour of the thorax is more extensive and there is no 

 pale mark on the side of the head ; the hind and middle femora are 

 black, and the lines of black spots on the elytra are nearly confluent on 

 the disc, which is sometimes entirely black ; the series of punctures on 

 the elytra are coarser and more regular than in L. simiatus, and the 

 punctures of the thorax are more numerous ; the shape is short oval. 

 It is the darkest species of Laccohius in our lists, and may be known 

 superficially by its colour and shape. L, 3-3^ mm. 



Chobham (Champion), Brockenhurst (Sharp), River Tavey, near 

 Horrabridge, Devon, and Newbury (Tomlin). 



Dr. Sharp, who inti"oduces the species as British (Ent. Mo. Mag. xlv. 

 (2 Ser. XX.), 1909, 217), is of opinion that Motshulsky's description is 

 not drawn from this insect, although Kuwert and Ganglbauer apply the 

 name thereto ; the beetle certainly does not agree with Motschulsky's 

 very meagre account of it, and, as we have said above, no type 

 apparently is in existence. 



L. oblongus, Gorham, Ent. Mo. Mag.xliii. (2 Ser, xviii.), 1907, 54, 

 Allied to L. nigrlceps, Thoms., with which it agrees in colour, but 

 easily distinguished by its distinctly longer oblong-ovate form ; the 

 head is more finely alutaceous and the intermediate femora of the 

 male have no spot of pubescence at the base ; the sculpture of the 

 elytra appears to be stronger, but this may be variable ; it is irregular, 

 but less so than in L. nigrlceps. L. 3-3^ mm. 



