16 
Psyche 
[Vol. 94 
often used in conjunction with other characters to discriminate gen- 
era in the Tyrini. However, all other features used to separate tyrine 
genera are uniform in these species, and, coupled with the identical 
suite of foveae and quite similar general appearance, it is readily 
apparent that these five species form a monophyletic group. At this 
time I prefer to take a conservative course and place the undescribed 
Tasmanian species in Tyrogetus without division into subgenera or 
genera, at least until the New Zealand fauna is better known. 
Tyrogetus Broun is characterized by: Body smooth, legs rugosely 
pebbled; head nude with vertexal foveae placed laterally above eyes, 
nude antero-median fovea at base of antennal tubercle, antennae 
with apical three flagellomeres forming club, segments II-IV of 
maxillary palpi elongate and basally pedunculate, 1 gular fovea; 
pronotum lacking antebasal foveae or sulcus, prosternal foveae 
present; elytra with two basal foveae; lateral mesosternal foveae 
broadly meeting internally, with small anterior fork, shallow 
median mesosternal fovea, lateral mesocoxal foveae placed poste- 
rior to mesocoxae, with median metasternal fovea; metasternum 
short, longitudinally tumid between meso- and metacoxae, meta- 
coxae abruptly strongly protruding at junction with trochanters; 
abdomen with tergite I two to five times length of II, II-IV sub- 
equal, III shorter than IV, I with three basolateral foveae, antero- 
lateral foveae small, II-IV with two baso-lateral foveae separated or 
partially fused, V with single baso-lateral fovea; sternites II— III 
deeply incised laterally at base (only visible on cleared specimens), 
incision joining globular invagination medially, IV-VI lacking baso- 
lateral foveae. 
Key to Tasmanian Tyrogetus 
1. Fourth segment of maxillary palpi no more that three times as 
long as wide, basal third abruptly narrowed (Fig. 1); eyes with 
about 15 facets occidentalis n. sp. 
Fourth segment of maxillary palpi five times or more as 
long as wide, gradually narrowed (Fig. 5); eyes with 10 or fewer 
facets 2 
2. Length 1.5- 1.8; males with paired teeth at apex of fifth tergite 
(Fig. 7); southwestern Tasmania howardi n. sp. 
Length 1.3; male lacking teeth at apex of fifth tergite; northeast- 
ern Tasmania minimus n. sp. 
