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Psyche 
[Vol. 90 
small, has slightly convex sides of the head, scapes that just fail to 
reach (or just barely reach) the occipital border when held straight 
back, and a median clypeal lobe that is as long as, or slightly longer 
than, wide at its widest (near apex). The end of the lobe is convex or 
straight, and the free angles may be rectangular or rounded. Mea- 
surements for Papua New Guinea North Coast workers are: TL 
2.S-3.7, HL 0.53-0.71, HW 0.45-0.60 (Cl 81-91), ML 0.30-0.43 
(MI 81-92), MLO 0.40-0.57, SL 0.42-0.58 (SI 87-95), EL 0.03-0.06, 
WL 0.95-1 .25 mm. Workers of a colony series from Salawati Island, 
at the western end of New Guinea, fall within these dimensions and 
proportions. Workers from Bisianumu, in the hills above Port 
Moresby, fit the North Coast dimension range, while a sample from 
Karema, in the lowlands north of Moresby, tends slightly to exceed 
the North Coast samples in size. 
Samples from the Cape York area of North Queensland average 
larger than any of the New Guinea series; a large worker from the 
Black Mt. Road, north of Kuranda, measures TL 4. 1 , HL 0.74, H W 
0.67 (Cl 91), ML 0.43 (MI 91), MLO 0.58, SL 0.59 (SI 88), EL 0.04, 
WL 1.34 mm. The Australian samples often have the laid-back 
scapes reaching the posterior border of the head, and the posterior 
border is more distinctly concave. In addition, the median clypeal 
lobe tends to be wider, often as wide as or wider than long, and the 
minute punctures, especially on the head, are a trifle coarser and 
more distinct. Several of these series have sordid yellowish individu- 
als, undoubtedly partly callow, that correspond to Mdcc.fulvescem. 
New locality records: papua new guinea: Karema, Brown R., 
rotten log, lowland rain forest, leg. Wilson, No. 552. Bisianumu, 
near Sogeri, about 500 m, hill rain forest, Wilson Nos. 637, 637A, 
litter and rotten wood, strays. In the vicinity of Lae (Didiman 
Creek, Bubia and lower Busu R.), several nests and litter strays, 
Wilson Nos. 688, 689A, 690, 716, 939, 962, 978, 1037, 1045, 1058, all 
in lowland rain forest. No. 689 was a small colony in a Zoraptera- 
stage log, with about ten workers and two queens. No. 716 was a 
worker carrying an entomobryid collembolan about its own length 
lengthwise beneath its body, army ant fashion. No. 1037 was a nest 
in a cavity in the under surface of a hard, barkless log in leaf litter. 
No. 1045, a nest in a soft Passalus-s\?igQ log, had peripheral galleries 
packed with unidentified arthropodan cuticular fragments. Nadzab, 
dry evergreen forest, Wilson No. 1 100. Wau north, on Bulolo road. 
