The genus Pachyglossa resembles Prionochilus in many respects, but the wing is extremely long with a much shorter first primary, and the secondaries fall short of the tip of the wing by a distance greater than the length of the tarsus. The lower edge of the inferior mandible is nearly straight.
The sexes are dissimilar, but not very much so. I have not been able to examine a young bird, but it will, without doubt, be found to resemble the adult female.
The only species of this genus inhabits the Himalayas, and nothing appears to be known about its habits. Hodgson, fide Jerdon, says that it feeds on small insects and viscid berries and makes a pendulous nest.