432 i\Ir. H. Scott on 



broad, costals regular, discoidal sectors oblique ; castaneous, 

 laterally bordered with oclireous, the band diminishing from 

 before backwards ; extreme outer margin of mediastinal 

 area castaneous^ mediastinal vein piceous ; radial vein 

 ridged on the under surface of the tegmina. Wings flavo- 

 testaceouSj equal in length to tegmina; costals irregular; 

 11 ulnar rami, 4 being incomplete. The abdomen above 

 j'cllow-brown, the disc dark, posterior angles of distal tcrgites 

 dentately produced ; beneath castaneous. Supra-anal lamina 

 subbilobate, barely exceeding the subgenital lamina, which 

 is narrow, produced, slightly asymmetrical (PI. X. fig. 2), 

 and with two small slender styles. Cerci short, pointed, 

 piceous, the two apical joints ochreous. Legs rufo-casta- 

 iieous ; femora strongly armed, front femora with three to 

 four spines on the anterior margin beneath ; forrnvila of 

 apical spines f, |, j ; no genicular spines on front femora. 

 Tibia? triseriately spined on their outer aspect. Tarsi short, 

 with large pulvilli and arolia ; metatarsi quite unarmed 

 beneath ; posterior metatarsus I'ather shorter than the suc- 

 ceeding joints. 



? . Resembles the (^ , but is larger, the ochreous margins 

 of the pronotura and tegmina translucent ; the tegmina and 

 wings are shorter and the abdomen is dark castaneous in 

 colour both above and beneath ; supra-anal lamina slightly 

 more produced, and subgenital lamina ample, produced, with 

 sinuate margins. 



Larva dark castaneous, variegated with rufous in some 

 specimens ; lateral margins of the thoracic tergites trans- 

 lucent ochreous. 



Measurements (S and ? types). — Total length (c?) 28, 

 (?) 38'5 mm. ; length of tegmina {^) 16, (?) 19 mm.; 

 greatest breadth of abdomen {(^) 14, (?) 19 mm; pro- 

 uotum ( c? ) 8 X 12, (?) 9-5 X 14-2 mm. 



Loc. Trinidad, summit of El Tucuche, 3100 feet, 20. iii. 

 1912 ; from leaf-bases of TiUandsia sp., 2 c? » "f' ? j 7 lai'vre. 

 '^yp(^ {<S) and one paratype (?). presented to British 

 Museum, and one paratype (?) to the Hope Museum, 

 Oxford ; remaining paratypes and larvae in Cambridge 

 University Museum. 



A certain amount of water collects in the spaces between 

 the leaf-bases, and the cockroaches must therefore lead a 

 more or less aquatic life ; the spiracular tubes which in 

 both sexes are clearh^ visible, projecting from beneath the 

 antepenultimate abdominal tergite, show that this species 

 is as well adapted for an aquatic existence as those Oriental 



