ON NEW AND LITTLE-KNOWN HYMENOPTERA. 369 
Mr. Cameron (Hym. Orient., p. 441) says he has failed to notice in 
his specimens any green tinge about the head and thorax. In all the 
specimens I have taken the fine silky pile on the head and thorax is 
quite markedly of a beautiful greenish silvery hue. 
I have more than once found the nest of this species. One nest I 
found in July was made in the hollow end of a bamboo projecting from 
the thatch of a ruined zayat or rest-house in the Domdami valley. A 
reference to the figure (Pl. I, Fig. 1) will show that the nest consists 
of a series of oval, thin, convex shells of clay, not unlike those made by 
the different species of Humenes, only shallower, not so high, These 
shells were filled with spiders (Epezra). It was a remarkable fact that 
at least a dozen of the Pseudagenia were flying to and from the nest, 
In about a quarter of an hour I had caught nine of them. To a 
certain extent therefore this species, unlike any other member of 
the family Pompilide known to me, nests in societies. A still 
more remarkable fact was that among my captures I found not 
only females, but males (known at a glance by the much shorter 
abdomen and heavier and longer thorax in proportion). Half 
an hour’s careful watching of the individuals left uncaught, however, 
showed me that it was only the females that were busy making 
the cells and collecting the spiders to provision them with. The males 
simply flew around settling occasionally on the thatch of the zayat close 
by. I took the nest cutting off the end of the bamboo. In November 
four of the cells hatched out, one insect each, all females, The rest of 
the cells have remained intact, not even yielding any parasite, such as 
Stelis, which attaches itself to the genus Megachile, or Chrysis, which I 
have seen attending Rhynchium and Eumenes. From the circumstance 
that I have found Pseudagenia tincta making its nests in February and 
March and again in July, I presume it is double-brooded., 
6. PSHUDAGENIA BLANDA, Guérin. 
PomMPILUS BLANDUS, Guér., Voy. Coq:, ool., II, pt. 2, p. 260. 
Hasirat : India, Malacca, Borneo to Flores, Burma, Tenasserim. 
This species is almost equally common as the last. It comes into 
houses and nests in the chinks and crevices in the wood walls, storing 
its nests invariably with the smaller Lycosa or jumping spiders, I saw 
a female one morning in the verandah of my house in Moulmein in hot 
combat with a spider rather larger than what this Pseudagenia generally 
