NOTES. 55 
generation of fertile females was raised. The third generation 
proved to be sterile. No males appeared at all. 
({) Homoptera infested by Stylops.—A small Jassid (Thompsont- 
ella arcuata), abundant in the short grass outside my laboratory, 
is very commonly parasitized by a Stylopid insect, probably a 
species of Hlenchus. I have been unable to breed out the adult 
male insect, but have extracted fairly perfect specimens by boiling 
the dead pupz in liquor potasse. I have seen as many as five of 
the parasites projecting from between the abdominal rings of the 
living Homopteron. The same parasite occasionally occurs upon 
other species of Jasside in the same locality. 
(g) Hare attacked by Crow.—A curious incident was observed in 
these Gardens afew weeks ago. A full-grown hare was seen racing 
across the lawns, closely followed by a crow. The hare repeatedly 
dodged and doubled, but the crow—flying quite low—kept up with 
it, making repeated dabs at it with its beak. Eventually the 
pursued and pursuer disappeared round a corner, and the finish of 
the hunt was not observed. 
(2) An effective Butterfly Trap.—A large wire netting enclosure— 
originally designed as an aviary, but now unoccupied—is proving 
itself a very effective butterfly trap. For a few weeks, during the 
migrating season, many different kinds of butterflies entered through 
the open door and seemed incapable of finding their way out again. 
Kach day fresh arrivals appeared, and remained there until captured 
and liberated. The most constant tenants have been Huplea 
asela, Danais aglea, Ornithoptera darsius, Papilio parinda, and P. 
polites. Smaller species also enter, but are able to make their way 
through the wire mesh. The height of the trapping season was at 
the end of May and early in June. Since the middle of June no. 
further captures have been effected. The door was open towards 
the south-west, and the opposite side of ghe enclosure was occupied 
by a blank whitewashed wall. 
(«) Characteristic odour of Leaf-cutting Bees.—I do not know if 
the peculiar odour of many species of Megachile (leaf-cutting bees) 
has ever been noticed or recorded in print. It is so distinctive that 
I could guarantee to recognize a freshly caught Megachile though 
blindfolded. It is a decidedly unpleasant smell, suggestive—more 
than anything else—of sour bile. 
(j) Food of the Reduviid Bug, Physorhynchus linnei.—In Vol. 
TIT. (p. 159) of this Journal I gave an account of the slaughter of 
a large millipede by a comparatively small Reduviid bug. I have 
since had repeated evidence that this bug (Physorhynchus linnei) 
preys habitually upon millepedes. I have on several occasions 
seen the Reduviid perched upon the top of its recently vanquished 
victim, and its body distended with the blood of its prey. On 
