in the British Museum. 457 
(type now designated E. lavateri, Heer, from Oeningen), 
seems applicable to the present insect. I include in 
Elaterites, however, various Elaterid elytra from the Tertiary, 
which cannot be definitely assigned to known genera. Those 
described below, if completely known, would very likely be 
found to include as many genera as species. 
Elaterites perditulus, sp. n. (Pl. XVI. fig. 7.) 
Elytron about 10°3 mm. long, width about 2 mm. ; eight 
rows of fine punctures, about the middle four rows in 1 mm. 
transversely ; punctures in the rows about 130-160 yp apart, 
and placed in delicate grooves. The general form is that of 
Monocrepidius ; the apex is too pointed for Athous. 
Corfe, I. of Purbeck, Dorset (Brodie). Brit. Museum, 
10418. 
This is labelled “ Ayrilus, Buprestide (W.).” W. probably 
stands for Westwood, but in spite of this high authority the 
insect must be referred to the Elateride. 
Elaterites laconoides, sp.n. (Pl. XVI. fig. 8 ; text-fig, 1.) 
Elytron 7 mm. long and 2°5 mm. broad, formed much as 
in Lacon, the apex very obtuse. Ten striz, bearing five 
round (not elongate) punctures; near the humeral angle 
the second stria (counting from without) is deflected toward 
the third at its upper end, and in the space thus formed 
between the first stria and upper end of second is a little 
Fig. 
Lea 
os 
1eqqa, 
Elaterites laconoides (sculpture). 
if 
1 
aie 
: 
row of four punctures. On the basal half of the elytron the 
punctures are very distinct, but on the apical part they are 
small and obscure. On the basal part the punctures are 
about six in a mm., and there are three strie to a mm. 
transversely. 
Bartonian, Bagshot Beds ; Bournemouth, near the pier. 
Presented by Alfred Bell. Brit. Museum, 18998. 
