158 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
The principal purpose of this paper is to enable the recognition of the genera.. 
Until more material is available, of specimens of both sexes taken together, it will be 
impossible to re-describe the various species. 
KEY TO THE GENERA OF THE STENOCOTIDAE. 
1. Head ventrally as -wide as long 
Head ventrally longer than wide . . 
2. Labium reaching well beyond hind coxae 
Labium reaching to middle coxae 
3. Ocelli marginal, in shallow oval depressions 
Ocelli ventral, in very shallow depressions 
4. Ocelli marginal, directed ventrally 
Ocelli dorsal . . 
2 
4 
3 
Anacotis gen. nov. 
Type Anacotis hackeri sp. nov. 
Stenocotis Stal 
Typo Stenocotis planiscnla Stal 
. . . . . Kyphocotis Kirk. 
Type Kyphocotis tessellata Kirk. 
. . . . . Smicrocotis Kirk. 
Type Smicrocotis obscura Kirk. 
. . . Ledracotis gen. nov. 
Type Ledracotis rugosa sp. nov.. 
STENOCOTIS Stal. 
Ofv. Vet-Ak. Forh. 11 ; 254, 1854. 
Ofv. Vet-Ak. Forh. 13 ; 67, 1856. 
The following species belong to this genus : planiscnla Stal (Type), subvittata 
Stal (1854) , corticalis Wa\k.,ferruginea Walk., depressa Walk., australis Walk., brevis 
Walk., varia Walk., conferta Walk., unicolor Walk. (1851) ; delineata Walk. (1858) ; 
dimorpha Kirk., reticulata Kirk. (1907). 
Stenocotis australis is synonymous with S. brevis, S. subvittata, 8. varia and 
S. delineata with 8 . depressa, and 8 . dimorpha with 8 . costatis. 
The male genitalia of a number of colour varieties have been examined, but 
have disclosed no significant differences, and although doubtless there are a number 
of distinct species within this genus, it is probable that they are few'er than the above 
list would suggest. Figures are given (Text-figure 1, figs. 1-6) of Stenocotis depressa, 
and a re-description of the genus folIoAVs. 
$, Head ventrally, flat anteriorly. The maxillary plates extend beyond the 
apex of the clypeus and the labium extends beyond the hind coxae. The antennal 
ledges are distinct and extend across the frontal suture. Tlie hind margin of the frons 
is not defined and the vertex has a median longitucbnal ridge. The ocelli, which are 
marginal, lie in shallow oval depressions, and the crowm is wider in the centre than 
against the eyes on each side. The eyes are prominent. 
