340 Ml!. I!, SHELFOED ON A COLLECTION OF 



abdomen. The subgenitul lamina of the female is semiorbicular. ample, and 

 with the posterior margin sliorhtly sinuate. 



A slight A-ariation in the coloration of the pronotum is exhibited by some 

 specimens (Nos. 5428, 543G, 5474, 5503) ; in these the disc of the pronotum 

 is divided by a pale central line, which at the base divides into two^ and two 

 short lines maj or may not be given off from the limbs of the bifurcation. 

 In No. 5436 the " titillator penis " is extended, its shape is as in E. laj>ponkus. 

 The species average 9 mm. in length ; the females are slightly shorter and 

 broader than the males. 



ECTOBIUS INCLl'SUS, sp. n. (PI. 47. fig. 2.) 



S S • ^"o^- oifOg, 5531 (adults), 5530 (larva). 



? ? . Nos. 5/^57, 5543. 



Allied to E. halticus, Germ. & Ber., but the disc of the pronotum testaceous, 

 with numerous castaneous dots (? punctures) and lines more or less sym- 

 metrically arranged. Sub-genital lamina ( c? ) rather more elongate and 

 furnished with one long and sharply pointed style. ? . Shorter and broader, 

 Avith tegmina and wings exceeding apex of abdomen : sub-genital lamina 

 semi-orbicular, ample, posterior margin sinuate. Femora A'ery sparsely 

 armed. 



Total length (c?) 1* mm. ; (?) 8-8 mm. 



In No. 5437 the tegmina are slightly parted, revealing the apex of the 

 wing, the venation of Avhich, so far as it can be seen, conforms to the arrange- 

 ment characteristic of the genus. In the larva (No. 5530) the posterior 

 angles of the meso- and metanotum are backwardly produced, as in all Blattid 

 larvse of svinged species. The genital style of the male is highly characteristic 

 of the species. 



Subfam. PHYLLODKOMIINiE. 



ISCHNOPTEEA GEUANENSIS, Germ. ^ Bev. (PI. 47. fig. 3.) 

 Ischnoptera gedanensis, Germar & BereDdt, t. c. p. 33, pi. 4. fig. 4 (1856). 

 c? S ■ Nos. 5455, 5462, 5484, 5562, 6702, 6706, 6709, 6715, 6717, 6722, « 4. 

 ? . No. 6712. 



Since the wings are completely concealed in all the examples which have 

 been examined, it is impossible to be absolutely certain if this species really 

 belongs to the genus IscJiiioj)fera ; but as the insect in its general facies 

 bears a very close resemblance to certain modern species of Ischnoptera, I 

 refer the fossil form to that genus without much hesitation. The published 

 description of the species is fairly complete and the following details only need 

 to be added to it : — Tegmina with mediastinal vein simple or with one short 

 branch, radial vein bifurcate and ramose at apex, 15-17 costals, 9-10 longi- 

 tudinal discoidal sectors connected svith each other bv numerous transverse 



