348 3[R. R. SHELFORD ON A COLLECTION OF 



Cbratinoptera did\'ma, Germ. S; Ber. 



Blatta didyma, Germar & Bereiidr, t. c. p. 34, pi. -4. f. G. 

 ? Blatta elliptica, Giebel, Z. f. d. g. Nat. xx. (1862) p. 315. 



? ? . Nos. 5434, 5472. 



Two females that correspond well with the description and figure ol" this 

 species. The tegmina appear to he semi-corneous, and their venation on 

 account of the clouding of the amber cannot be made out at all distinctly. 

 The femora are sparsely armed ; the front femora have 3 spines in the middle 

 of the anterior margin beneath, succeeded distally by piliform spines, there 

 are about 4 spines on the posterior margin ; the mid- and hind-femora have 

 2-3 spines on the anterior margin beneath, 3-4 on the posterior margin. 

 Sub-genital lamina ample and semi-orbicular. Cerci moderate, fusiform. 



Total length 11 mm. 



Oeratinoptera soror, sp. n. 



S . No. 7^77. ? . No. 5901. 



Allied to C. didyma, Germ. & Ber., but larger and more stoutly built. 



(^ . Piceous, the pronotiim bordered anteriorly and posteriorly with 

 testaceous. Tegmina not exceeding the apex of the abdomen, venation more 

 ■distinct than in C. didijma, mediastinal area broad, 'about 17 costals, anal vein 

 impressed. Sub-genital lamina asymmetrical, similar to that of Phyllo- 

 dromia haJtica mihi, but Avith only one style, the left. Cerci stout, 9-jointed. 



? . Tegmina not extending bej^ond the 5th abdominal tergite, their apices 

 sub-truncate. Apex of abdomen somewhat constricted ; supra-anal lamina 

 transverse, surpassed by the sub-genital lamina, which is semi-orbicular and 

 ample. Front femora armed on the anterior margin beneath wdth a 

 complete row of stout spines ; mid- and hind-femora with 4-5 spines on the 

 anterior margin, 5-6 on the posterior margin, beneath. 



Length {^) lO'O mm., (?) 11"1 mm. ; length of tegmina (j) 8 mm., 

 (?) 5-1 mm. 



Ceratinoptera cruenta, sp. n. (PI. 48. fig. 20.) 



? . No. 352g. 



Light castaneous. Antennae longer than total length. Pronotum trape- 

 zoidal, sides deflexed, posteriorly sub-truncate. Scutellum exposed. Tegmina 

 not reaching to the apex of the abdomen, lanceolate, apparently semi- 

 corneous, venation indistinct ; anal vein deeply impressed, not angulate. 

 Abdomen broadly ovate ; sub-genital lamina semi-orbicular, ample. Front 

 femora with piliform spines only on anterior margin beneath, posterior 

 margin unarmed ; mid-femora with 3 spines on anterior margin beneath in 

 the middle, none on posterior margin ; the left hind femur with one spine on 



