in the British Museum. 463 
elytron, but beyond the distance decreases to 2 mm.; three 
other rows of punctures are visible, the last only 1 mm apart. 
Bartonian, Bagshot Beds ; Bournemouth (J. S. Gardner). 
Brit. Museum, 19004. An abdomen, nearly 12 mm. broad, 
probably belongs to the same species (B. Mus., 19087). 
There is also a prothorax, 10 mm. broad, and 5 mm. long 
in middle, formed exactly as in Cotalpa lanigera, but im- 
punctate, which may well belong here (B. Mus., 19040). 
The data for the abdomen and prothorax are the same as for 
the elytron. 
Fig. 6. 
er er 
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—— 
. 
2S wire 
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een eo @ 
. 
Pelidnotites atavus, Ckll. 
This is by far the oldest genuine Scarabeid known, but it 
seems clearly to belong to the Rutelini in the vicinity of 
Pelidnota and Cotalpa. The reference is strongly supported 
by the abdomen and prothorax, which show the presence of 
such a type in the deposit, or at least indicate a veritable 
Scarabezid. As it is impossible to definitely refer the insect 
to a living genus, I propose the name Pelidnotites for it. 
EXPLANATION OF PLATE XVI. 
. Elaterites paleophilus, Ckll., x 8. P. 458: 
ig. 1 
Fig. 2. Megapterites mirabilis, Ckll., type. P. 278. 
‘ig. 3. Pycnoscelus gardnert, Ckll., type, X 13. P. 275. 
Fig. 4. Hammapteryx anglica, Ckll., type. P. 276. 
Fig. 5, Geophylla bartoniana, Ckll., type, x 2. P. 277. 
Fig. 6, Allopterites multilineatus, Ckil., type, x 2. P. 275. 
Fig. 7. Elaterites perditulus, Ckll.,.x 3, P. 457. 
‘ug. 8. Elaterites laconotdes, Ckll., type, X 8. P. 457. 
Fig. 9, Elaterites sculptilis, Ckll., x 8. P. 458. 
Fig. 10, Carabites gardnert, Ckll., type, X 2. P. 455. 
Fig. 11. Formica heteroptera, Ckil., type, x 2. P. 278. 
Fig. 12. Leptura bartoniana, Ckll., type. P. 462. 
[Figs. 2, 3, 4, 5, 6, and 11 illustrate the paper in the March issue ; 
figs. 1, 7, 8, 9, 10, and 12 belong to the present paper.—Ebs. | 
