12 ORTHOPTERA 



the lateral lobes; lateral and median carina? absent ; lateial lobes very narrowly rounded below, the 

 humeral sinus shallow. Pro-, meso- and metasterni each with a pair of moderately long apically roun- 

 ded tubercles. 



Legs moderate ; all femora above punctate with minute granules, on the outer side, principally 

 posteriorlv. provided with parallel transverse sulci, sulcate ventrally and unarmed : anterior coxa- 

 armed ; anterior femora somewhat rounded, the inner apical lobe minutely spinose, the outer lobe 

 smooth ; middle femora similarly formed, both apical lobes minutely spined ; for and middle tibia.' 

 rounded above, armed below on both sides with five spines: anterior tibiae unarmed above and 

 furnished with linear foramina ; intermediate tibise furnished above with one basal spine situated 

 towards the hind margin. Posterior femora long, strongly swollen basally. slender in the apical half, 

 the apex stouter, both genicular lobes spinose ; posterior tibiae long and slender, flat above and with 

 many spinules on both margins, beneath towards the apex with three or four short slender spines; apical 

 spurs five in number, one above on the outer margin and four beneath, two longer ones embracing 

 two shorter ones. Tarsi moderate, the first joint laterally lightly sulcate, beneath furnished with a free 

 plantula as in the Decticina?. 



Wings and elytra entirely absent. 



Abdomen moderately slender ; supraanal plate short ; ovipositor robust, compressed, gently 

 curved upwards, obliquely acuminate apically, the upper and lower margins finely serrate ; subgenjtal 

 plate slightly sinuate apically. 



Type. — Mortoniellus kamyi, Griffini. 



Geographical distribution of species. — Sumatra. 

 i. M. kamyi Griffini, Wien. Ent. Zeit. Vol. 28, p. 108, f. A, B, C (1909). Sumatra. 

 — Plate I, Fig. 7. 



