104 Mr. Malcolm Burr’s Preliminary Revision of the 
recto, postico subconvexo, lateribus rectis ; prozona tumida, sutura 
distincta, lateribus reflexis: scutellum nullum; elytra brevia, 
carinula humerali ad apicem elytri attingenti, margine postico 
truncato; alee nulle; pedes longi, graciles, tarsorum segemento 
primo cetera unita superanti; abdomen subcylindricum, convexum, 
plicis lateralibus distinctis, integrum ; seymentum ultimum dorsale 
¢d angustatum, declive, margine postico medio impresso, utrinque 
tuberculato ; 9 angustius, inerme; forcipis bracchia sat valida, 
subrecta, basi remota, sensim convergentia, rotundata; 9 gracilia, 
attenuata, contigua. 
Type of the genus.—Opisthocosmia dubia, Borm., Ann. 
Mus. Civ. Gen. xxxiv, p. 399, 2. (1894.) (Burmah.) 
This genus removes from Opisthocosmia the wingless 
species described by de Bormans under the name dubia ; 
it resembles true Opisthocosmia in every respect except 
the form of the elytra, in which it approaches the large 
and stout Skendyle, from which it differs in the narrow 
and somewhat elongated pronotum; the elytra are broad, 
coriaceous, with a sharp keel on the outer edge running 
the whole length of the elytra; the general form of the 
forceps also recalls Skendyle. 
Verhoeff included this species with the other wingless 
forms previously included in Opzsthocosmia, in his genus 
Cosniella, characterised by the keeled elytra and absence 
of wings; but Kirby fixed 0. rebus, Burr, as the type of 
Cosmiclla, from which this species must be removed by 
its long and narrow pronotum, which approaches true 
Opisthocosmit. 
Genus 6.—KLETER,* nov. gen. 
Statura mediocri, gracili; pronotum capite vix angustius ; elytra 
tantum ad humeros carinata; alee perfecte explicate; pedes graciles, 
longi; abdomen vix dilatatum, subcylindricum ; segmentis lateribus 
4-7 plicis recurvis depressis instructis; segmentum anale haud 
angustatum, transversum; forcipis bracechia elongata, gracilia, 
spinata, 
Type of the genus.—Opisthocosmia amazonensis, Borm., 
and Burr, Ann. Mag. N. H. ser. 7, vol. 11, p. 164. (1899.) 
(Upper Amazons.) 
This genus is a transition between the Opisthocosmiine 
* Gr. cknrip= policeman, 
