MOUM EORAIMA IN BEITISH GUIANA. 71 



//. Infero-lateral crests on anterior three caudal segments obsolete ; inferior medians 

 absent; dorsal integument not noticeably punctured ; terga closely granular 

 throughout in male ; vesicle granular ; hand granular, less globular, with 

 compressed inner edge, without finger-keels. 



a'. Carapace {^) entirely covered with close-set granules; sterna minutely and 

 closely punctured througliout ; lower surface of tail finely and closely 

 granular and punctured ; legs also densely and closely punctured ; fingers 

 longer, the movable as long as carapace, immovable more than twice as long 

 as its basal width. (Of large size, 46 mm. in length.) ffranosus, sp. u. 



b\ At least the upper portion of the carapace smooth ; sterna and lower surface of 

 anterior segments of tail smooth aud polished, not punctured or granular j 

 legs mostly smooth aud polished ; femora at most weakly granular ; fingers 

 shorter, movable shorter than carapace, immovable not twice as long as 

 its basal width. 



«'. Tail very thick, width of first caudal segment considerably exceeding the 

 width of the hand, and equal to length of first and second caudal segments 

 taken together ; hand very smooth, rounder, its inner edge less compressed, 

 with keel of underhand obsolete; tarsi longer, more thickly covered below 

 with long hair Scluteri, miiii. 



b". Tail much thinner, width of first segment generally much less tlian, rarely 

 equal, to width of hand, aud less than sum of lengdi of first and second caudal 

 segments ; hand at least with its inner edge granular and subcom pressed; 

 tarsi shorter and more scantily clothed with shorter hairs . . Golliacri, delicatus, parvulus. 



(For tabulation of the characters of the last three species, see my paper in Ann. Mag. 

 Nat. Hist. (6) xix. pp. 365-3G6, 1897 ; and Kraepelin, Das Tierr., Scorp. etc. p. 173, 

 1899.) 



HYMENOPTERA, HEMIPTERA HETEROPTERA, HOMOPTERA, 

 NEUROPTERA, AND ORTHOPTERA. 



By W. F. KiEBY, F.L.S., F.E.S. 



(Plate 6. figs. A, B.) 



The few specimens of these Orders which have been submitted to nae for identification 

 consist almost exclusively of common and well-known South American species. A few 

 species, mostly immature, are hardly in a condition to be determined with certainty. 

 Tliese are one Forficulide, three Blattidoe, and one Pentatomide. One Hemipteron 

 I have described as new. 



The two species noted from the greatest elevation {Folistes annularis and Sympetrmu 

 gilvum) are southern representatives of forms found in North America. 



