56 FOSSIL TXSECTS OF THE BRITISH COAL MEASURES. 

 Familv LAMPROPTILID/E (Brongniart), Handlirsch. 



1885. Brougniart, Bull. Soe. Amis Sri. N;it. K'oiicn [3 . ami. .\\i. |>. >'<'>. 

 190C. Handlirsrli. Hie Kossilcu Insi-kti-n, p. lu'.i. 



Fore- and hind- wing stronglv marked. Veins of the anal and cubital groups 

 numerous and directed obliquely backwards. Hind-wings short and broad. 



(ienus BOLTONIELLA, Handlirsch. 



1885. Lamproptilia, Brongniart. Bull. Sue. Amis Sci. Nat. Rourn :! , aim. x\i. p. tl:;. 

 1919. Boltoniella, Handlirscli, Revision <ler Paliiozoischeii Insi-kli j n, p. Jl. 



Generic CJiarnrferx. Fore-wings two and a halt' times as long as wide ; hind-- 

 wings as long as wide. Outer margin of former curved, of hind-wings almost 

 straight. Apex of wings rounded. The fore-wings are almost elliptical, and the 

 hind-wings rectangular in shape. The costa is marginal and the costal area some- 

 what narrow. The subcosta joins the costa far out. Radius simple, the radial 

 sector arising near the base of the wing and giving off three forked branches, 

 which pass obliquely to the inner half of the wing-apex. Median dividing into 

 two main branches, the inner twice as much divided as the outer. Oubitus with 

 tw r o main branches, each breaking up into numerous twigs. Interstitial neuration 

 consisting of widely spaced straight cross-nervures. 



Handlirsch, who has formed this genus, admits that it reminds one in many 

 ways of Lamproptilia, but by reason of the small si/,e and closer spaced cross- 

 nervures he separates it from that genus. 



Boltoniella tenuitegminata (Bolton). Plate TIT, fig. 4. 



1911. Lamproptllin tenuitegminata, Bolton, Quart. Journ. Geol. Soe., vol. Ixvii, p. 170. pi. x. fit;, li. 



Ti/jie. A right hind-wing, in a small fragile block of brown mudstone or shale, 

 crowded with plant-remains; Museum of Practical ( Jeologv, .lermvn Street, London 

 (no. 24509). 



Hori::oit nt/il Lnrnlifi/. Coal Measures (Xo. -2 Rhondda Seam, base of the Pennant 

 Scries) ; 1 : ( ! miles north-east of Resolven Station, Glamorganshire. 



S/nrijic Characters. Broad wings of great tenuity and blattoid-like in character. 

 Principal veins much divided, and fading out on the inner margin. Apex of win^ 

 bluntly rounded. Anal veins very numerous. 



Descfijilinii.. The type-specimen consists of a right hind-wing of considerable 

 tenuity, the underlying plant-remains being easily traceable through the texture 

 of the wing. The greatest length is 'J'.t mm., and the greatest breadth 7 mm. The 

 neuration is so similar to thai which I have observed in the hind-wind's of blattoids 



