214 OKTHOPTERA. 



80 (75) . Hind tibiae with the spines on the outer row regularly 



arranged, seven or more in number. 



81 (92). Posterior tarsi with the first and second joints subequal 



in length. 



82 (89) . Valves of the ovipositor slender, straight, unarmed. 



83 (88). Fastigium of the vertex horizontal or subhorizontal, 



prominent. Front rather strongly oblique. 



84 (85). Front edge of the pronotum above sinuate, decidedly 



emarginate at the centre. Tegmina sometimes com- 

 plete, sometimes abbreviate, but not lobiform. Male 

 cerci long, coarse, and furnished near the middle below 

 with a strong tooth or prong Proctolabus, Saussure. 



85 (84). Front edge of the pronotum broadly rounded, entire or 



only faintly emarginate. 



86 (87). Second joint of the hind tarsi longer than the first. 



Pronotum and tegmina banded with flavous, the latter 



as long as the abdomen Leioscapheus, Bruner. 



87 (86). Second joint of the hind tarsi no longer than, or scarcely 



as long as, the first. Pronotum and tegmina uni- 

 colorous, the latter about one-half the length of the 

 abdomen Anniceris, Stal. 



88 (83). Fastigium of the vertex more or less depressed, less pro- 



minent. Tegmina rudimentary or wanting. Posterior 

 edge of the pronotum truncate. Insect glabrous, 

 metallic Dellia, Stal. 



89 (82). Valves of the ovipositor more robust, of normal form, 



the apex hooked. 



90 (91) . Tegmina complete, as long as, or a little longer than, the 



abdomen. Legs plain, not banded Coscineuta, Stal. 



91 (90) . Tegmina somewhat abbreviated, considerably shorter than 



the abdomen. Legs conspicuously banded .... Zosperamerus, Bruner. 



92 (81). Posterior tarsi with the second joint distinctly shorter 



than the first. 



93 (123). Fastigium of the vertex triangular or in front truncate 



and separated from the frontal costa by a transverse 

 carina or a distinct angle. 



94 (101). Fastigium divided from the vertex by a more or less 



obvious transverse carina. Lateral carinas of the 

 face strongly divergent below. Head large, greatly 

 exserted. 



95 (98) . Frontal costa plain between the antennae, not sulcate. 



96 (97). Posterior tibise armed externally with an apical spine. 



Tegmina and wings complete. Prosternal spine acute. 



Hind margin of pronotum angulate Abila, Stal. 



