1987] 
Chandler — Tyrini from Australia 
17 
Tyroeetus occidentalis n. sp. 
(Figs. 1-4) 
Length 1.68-1.77. Body with moderately dense appressed setae; 
maxillary palpi with last segment angulate and directed laterally in 
apical two-thirds, abruptly swollen at point of angulation; eyes with 
about 15 facets; elytra with discal stria extending past middle; ter- 
gite I twice length of II, II as long as IV, III three-fourths length of 
II, V with narrowly truncate apex, apex slightly indented; protro- 
chanters with stout swollen ventral knob, profemora with flattened 
carina on inner margin from near base to middle, protibia with 
small spur at apex. 
Males with sternites II-IV flattened medially, V with shallow lon- 
gitudinal groove. 
Females with sternites II-V medially convex. 
Measurements of holotype: Maxillary palpi with fourth segment 
0.06 wide, 0.16 long; tergite I 0.33 long, II 0.17 long, III 0.13 long, 
IV 0.18 long, V 0.07 long; carina on profemora 0.17 long. 
Specimens examined, 6: Holotype male, Tasmania, Mt. Field 
National Park, near SE end Lake Fenton, 1000 m, 1-30/ II-5-1980, 
A. Newton & M. Thayer, Nothofagus gunnii-Richea spp .-Arthro- 
taxis spp .-Phyllocladus asplen. forest (ANIC). Paratypes: 1 male, 
Hartz Mountains National Park, Hartz Road, 740 m, 11-8/ 10-1980, 
Eucalyptus- Nothofagus, A. Newton & M. Thayer, berlese forest leaf 
& log litter (DSC); 1 male, Willie’s Saddle, 9 km W Geeveston, 370 
m, 11-8/ 10-1980, A. Newton & M. Thayer, Eucalyptus forest, 
berlese forest leaf & log litter (AFN); 1 female, Great Lakes, C. Oke 
(MVMA); 1 male, 1 female, no locality, C. Oke collection 
(MVMA). Found in the southwestern half of Tasmania. 
Discussion: This species is quite similar in general appearance to 
palpalis Broun. In occidentalis tergite I is shorter, flagellomere VII 
is wider than VI and forms the base of the antennal club, and the 
last segment of the maxillary palpi is expanded in the apical two- 
thirds. Palpalis has tergite I longer, flagellomere VII is barely wider 
than VI so the antennal club appears almost two-segmented, and the 
last segment of the maxillary palpi is expanded in the apical half. 
Etymology: The name is derived from the distribution in the 
western portion of Tasmania. 
