Note on Agalliasies Wilkinsoni, Douy. S; Scott. — On the 30th June, I found, 

 near Perth, a little macropterous Heraipteron, which belongs to the genus Agalli- 

 astes. It is very different from A. pulicarius, Fall., having entirely brown antennas 

 and testaceous tibiae without black spots, and resembles the macropterous form of 

 A. saltitans, Fall., but is not metallic shining, has unicolorous elytra, and much paler 

 antennae. I think that this insect is the (till now unknown) macropterous form of 

 A. Wilkinsoni, Doug. & Scott. The body is black, shining, clothed with fine, pale, 

 ailpressed hairs ; the posterior margin of the vertex is sharp, the front convex ; the 

 antennae are pale brownish, the first joint at the base blackish, the second joint 

 shorter than the width of the head ; the basal margin of the pi-onotum is nearly 

 one-half wider than the head, and largely emarginate, the calli very distinct ; lieme- 

 lyti'a clothed with longer pale hairs, half of the membrane exceeding the apex of the 

 abdomen, cell-nerves whitish ; thighs brown, testaceous at the apex ; tibiae testaceous, 

 with fine spine-like black hairs ; tarsi brownish. — O. M. Reixter, Lerwick, Shetland : 

 JhIij Wth, 1876. 



Note on a variety of MegalocercBa (Trigonotylus) ruficornis, Fall. — In the 

 " Scottish Naturalist," vol. i, p. 264, Dr. Buchanan White gave us a list of the Scottish 

 species of Miris, and mentions the protective mimicry of 31. hohatus, laevigatus, 

 and calcaratus, which have a green form when the grass is green and juicy, and an 

 ochreoua form when their food plant is getting dry and yellowish ; whereas M. rufi- 

 cornis has not an ochreous autumnal form. But this insect offers another example 

 of protective mimicry. It is commonly darker green, with the antennae red, and 

 with brownish stripes on the pronotum and scutellum. During an excursion I made 

 with Mr. Norman to the Culbin Sands near Forres, I found M. ruficornis very 

 abundant on Psamma arenaria, but all the many hundred specimens which we saw 

 were more robust and larger than the usual form ; their colour was bright green 

 (almost " glauco-virescens "), in accordance with the colour of the food plant ; the 

 brownish stripes almost invisible ; the first two joints of the antennae were ^\so green, 

 the third green only towards the apex, and the fourth entirely pale testaceous. It is 

 curious that this insect, which typically lives in damp places, is larger on these dry 

 sand hills. — Id., Forres : Atigttd 4th, 1876. 



A phase in the history of Awpulex compressum, the destroyer of the common 

 Cockroach. — On June 1st, 1876, a general holiday, called " Dusliohara," I went for 

 a day's collecting in the jungly ground about Pultah, near Barrackpore, and, on 

 visiting a favourite spot, an old peepul-tree by a tank, that I have known for the last 

 tliree years to be the chosen haunt of several species of Hymenoptera, and especially 

 of the common, but beautiful, wasp Ampulex compressum, and the ant Pseudomyrma 

 hicolor, I was surprised to find an unusual commotion, or, as the natives would 

 express it, " tummasha," going on between the above-mentioned species ; all over 

 tlie trunk of the tree were couples engaged in a series of struggles or wrestling 

 raatclies — wasp versus ant — and so many individuals were occupied in this way, and 

 their actions were so rapid, that for some time I could make little out of their proceed- 

 ings ; so, picking out a single wasp low down on the trunk, and in an easy situation for 

 observation, I sat myself down to watch her movements. She was apparently keeping 

 guard over a small piece of smooth bark, about eighteen inches in diameter, and in 



