IS OPTERA OF NEW GUINEA. • 
375 
the second. Pro notum narrow, saddle-shaped, the anterior lobe but 
little elevated. Legs long, but shorter than in the soldier, the posterior 
femora not reaching to the apex of the abdomen. Abdomen ovoid, in¬ 
flated, the dorsum much arched. 
New Guinea: Graget Island, 1901. 
«This is the only species in New Guinea that I have seen moving 
about in the sun. 
I have never found the nests ; on the other hand, I have often seen 
specimens forming a row a finger-breadth wide, running in interminable 
processions on the ground or on fallen trees. 
I have followed such troups 300—400 paces, but was never able to 
ascertain their real direction because as many specimens seemed to go back¬ 
wards as forwards from one given point to another. 
The beginning and the end of such a troup disappeared always in the 
crown of some large tree.» (L. Bibó.) 
T. grallator therefore resembles in its habits the species of the 
monoceros group of Ceylon and the Malay Archipelago, but is easily 
distinguishable by the stoutness of the conical rostrum, and by the an¬ 
tennal structure. Mr. Biró noticed further that this species runs more 
slowly than T. umhrinus Hav., which he found in Penang. 
Termes (Euter mes) princeps n. sp. 
Winged form. Length 9—11 mm. Head dark brown, abdomen 
castaneous above, thorax and legs dark ochreous. Head ovate, rounded 
behind. Eyes rounded, large but not very prominent, finely faceted. 
Ocelli approximated to the eyes, distant from these by less than half a 
diameter. Fenestra present, small. Antennae of 15 segments, 1st cylin¬ 
drical, the following more or less rounded ; 3rd segment a little longer 
than the 2nd (in some cases the 3rd segment appears to be but very 
little longer than the 2nd, in other cases it is distinctly larger). Epi- 
stoma pale, scarcely prominent. Apical tooth of the mandibles subequal 
to the second. Pronotum not so broad as the head with eyes, with an 
Y-shaped pale mark, the front margin nearly straight, the anterior cor¬ 
ners depressed; postero-lateral margins converging, posterior margin 
narrow, slightly lobed. Posterior margin of the meso- and metanotum 
concave. Eorewings from 14'5 mm. long by 3*7 mm. broad to 16 mm. 
by 4 mm., pale fulvous. A yellow stain runs close to the last two thirds 
of the radius. The mediana runs much nearer to the cubitus than to 
the radius, is faint, and emits 2— 4r branches reaching the apex and 
the end of the posterior border of the wing. The cubitus emits 10—12 
