W. F. KIEBY— OETHOPTEEA. 65 



Grtllacris nana. 



Bruniier von Wattenwyl, Verhandlungen der kaiserlich-koniglichen zoologisch-botanisclieii 

 Gesellschaft in Wien, xxxviii. p. 364. n. 92 (1888). 

 One specimen, taken on Ruwenzori in 1906 ; no special information. Previouslj' 

 brought from Ruwenzori by Mr. Scott Elliot. 



Genus Thaumatoxenia, gen. n. 



An extremely aberrant insect, but showing some affinity with Behrona Walk. 

 {Otiaphysa Karsch). 



Male. — Head small ; fastigium depressed, pointed. Pronotum sellated, the saddle 

 long and narrow, the principal sulcus forming a rectangle about the middle of its 

 length, behind which the saddle is widened to the extremity. Cerci incurved and 

 hooked at the extremity, as long as the subgenital lamina, which is broad and concave 

 at the extremity. Legs very long and slender ; coxse with a slight spine ; all the 

 femora with short spines beneath ; tibiae sulcated and spined on the upper ridges and 

 also beneath ; tegmina oval, about three times as long as broad, and rounded off at the 

 extremity ; costal and inner marginal areas very broad, the costal area with subparallel 

 lines or partially reticulated ; the inner marginal area with more regularly curved 

 parallel lines ; between them rise three parallel nervures close together — the first 

 running to the costa at | of its length, and, in one specimen, dissolving into two short 

 branches on the left side, which soon disappear ; the second running to the costa 

 before the tip, and throwing off beneath at \ of its length a slender branch which 

 presently bifurcates and runs to the costa just above the tip ; the third bifurcates 

 almost at the base, and the upper branch is much waved and runs to the margin just 

 below the tip. After the bifurcation is a long pale space between the branches ; the 

 lower branch curves down to the inner margin, enclosing another pale space, broader 

 than the upper one, and crossed by more distinct parallel nervules ; nearer the base is 

 a small drum, crossed by a very strong slightly oblique nervure ; and the nervure 

 bounding the lower space beneath runs very close to the inner margin, with which it 

 soon coalesces. Wings longer than the tegmina, and rather pointed at the extremity. 



Thaumatoxenia leg get, sp. n. 



Long. corp. 21 millim. ; exp. tegm. 70 millim., lat. 10 millim. ; long. tib. post. 

 28 millim. 



Testaceous ; antennae darker beyond the two basal joints ; pronotum above with two 

 diverging red lines ; tegmina greenish yellow (probably green in life) ; wings rather 

 long and narrow, subhyaline, obtusely pointed at the tip, the upper half of which is 

 greenish yellow. 



Two male specimens from Mubuku Valley, E. Ruwenzori, 6000 feet, Dec. 1905, 

 Jan. 13, 1906. 



VOL. XIX. — PART ]. No. 9. — October, 1909. s. 



