120 Psyche [August 



the Ectatommiini, but the deep scrobes of the head are unlike 

 anything seen in other known Ponerine genera. Paraponera, to 

 be sure, has scrobes, but these are of a very different conformation, 

 being angulate and enclosing the eye in such a manner that the 

 scape hes over, and the funiculus under the eye, when the antenna 

 is folded back against the head, whereas in Paranomopone the 

 whole scrobe is above the eye. In other respects the head shows 

 close affinities with the Ectatommiini, so that, on the whole, I am 

 inclined to assign it to this tribe. The peculiar ergatoid female is 

 of unusual interest in connection with similar females of the genera 

 Onychomyrmex and Leptogenys and the apparent absence of definite 

 female forms in some of the other Australian ant-genera, notably 

 Rhytidoponera sens, str., Diacamma and Leptomyrmex. 



EXPLANATION OF THE PLATE. 



Fig. 1. Paranomopone relicta sp. nov. "Worker in profile. 



Fig. 2. Head of same seen from above. 



Fig. 3. Thorax and abdomen of same seen from above. 



Fig. 4. Antenna. 



Fig. 5. Female (ergatoid), in profile. 



Fig. 6. Thorax and abdomen of same seen from above. 



Fig. 7. Nearly full grown larva. 



Fig. 8. Head of same from above. 



NOTES ON THE EXTERNAL ANATOMY OF BOREUS 

 BRUMALIS FITCH.i 



By S. M. Dohanian. 



In December, 1914, and January, 1915, a score or more of Boreus 

 hriimalis Fitch were found by Mr. Richard Mead in Weston, Mass., 

 near the base of an oak tree. Another was found by the writer 

 during the latter part of January in the Arnold Arboretimi, 

 Jamaica Plain, Mass., on melting snow near a brook. Investiga- 

 tion of this curious and interesting insect has called attention to 



1 Contributions from the Entomological Laboratory of the Bussey Institution, Harvard Uni- 

 versity, No. 97. 



