1882.] J. Wood-Mason — On new and little-hnown Manfcodea. 23 



being tipped at both ends, the trochanter streaked, and the femur orna- 

 mented along the middle with a streak commencing at the base and taper- 

 ing to a point before the extremity of the joint ; fore tibia furnished with 

 15 and 13 spines on the inner and outer edges respectively. 



Abdomen slightly fusiform, with at least the 2nd to 7th of its ventral 

 arcs bimaculated with dark brown. Cerci rather broad. 



Total length 47 millims. ; height or length of head 6'5, breadth 8 ; 

 length of pronotu^ 11-5, greatest breadth (between the lateral bulgings) 

 6; length of meso. + metanotum = 10; of abdomen 23'5, greatest 

 breadth of abdomen 6*75 ; length of tegmina 40, breadth (just before the 

 middle) 11-5, of the marginal field 2 ; length of wings 35 ; length of fore 

 coxa 7, femur 10 ; of intermediate femur 7, tibia 6 75 ; of posterior femur 

 8*75, tibia 8*75 ; of cerci. 7. 

 Hab. Nyassa. 



Tarachodes dissimulator, n. sp. 

 $ . Pale greyish testaceous or earth-coloured, with the head, the upper 

 (outer in the anterior ones) surface of the legs, and the pronotum symme- 

 trically, speckled and mottled with darker. 



Head with the line of the vertex very slightly bisinuous. Antennae 

 extremely finely-setaceous. Pronotum with two conical tubercles on each 

 side at the junction of the obsoletely denticulate lateral with the anterior 

 margin, which latter has a minute rounded median emargination. 



Organs of flight in repose extending but little beyond the extremity 

 of the abdomen, not quite hyaline, with veins and veinlets pale testaceous 

 marked, especially in their anterior arese, with dark brown short coalescent 

 streaks, both more clouded anteriorly, the tegmina with an oval discoidal 

 pale patch before the middle devoid of dark marks followed by another 

 irregular and less distinct ; the stigma shorter and brownish. Legs and 

 leg-bases long-pubescent ; the anterior pair internally yellowish and 

 conspicuously marked with sliining black, the coxa (which has its upper 

 crest minutely 4-denticulate) throughout except at its two ends, and the 

 femur from the base to the end of the second third, processes being given 

 off from the lower margin of the black patch to all but the apical one of 

 the black spines of the inner and inferior crest and from its distal end 

 along each side of the femoral brush ; fore tibiae armed internally with 14 

 teeth concolorous with the outer surface and internally with the same 

 number of jet-black spines. 



Presternum marked behind the middle with a large and conspicuous 

 deep, but dead, black cordiform blotch, which is succeeded by a pair of 

 similarly coloured puncta placed near the posterior margin of the somite ; 

 and by a small roundish, also dead black, spot on the middle of the meta- 

 thoracic sternum. 



