428 Mr. C. O. Farqfiarson’s Five Years’ Observations 
noise over by the sideboard I saw a Rhynchium [Odynerus | 
laterale in the very act of going down the spout of one of 
the “reserve” pots. I have just discovered that the inner 
holes at the bottom of the spout, are “ built up” with 
mud and the mouth of the spout in process of being also 
built up. It is my “ going away”’ pot. I must remember 
to warn the boy next time I travel to Agege. These wasps 
are the most persistent animals. Vespem “ furca” (any 
convenient missile or newspaper) expellas, tamen usque 
recurret, 
IV. COLEOPTERA. 
1. Colour Associations of S. Nigerian Mylabrid Beetles. 
[The first three paragraphs refer to the species of an 
Ibadan colour-association, described in Proc. Ent. Soc. 
Lond., 1916, pp. xcix—cx, pl. B.] 
May 3, 1917.—The suggestion that it was the sterile 
flowers that were eaten is correct [Proc. Ent. Soc., Lond. 
1916, p. ci]. I may say that just lately I have seen one 
or two forms on the flowers of native Convolvulaceae, 
which are abundant here and elsewhere in the Colony. 
Lamborn suggests that the larvae may feed on the ova of 
the Acridian Zonocerus variegata, but before I'd got his 
letter these had disappeared for the season, but I will bear 
it in mind. 
Dec. 12, 1917.—Do you know, a few months ago I had 
to go about the day after I had seen two Decatoma affinis Ol. 
(type) ovipositing! I had perforce to go away and leave 
them. I saw the 9s digging holes in the ground like Fossorial 
wasps. One oviposited about 6 or 8 inches down, a mass 
of yellow sticky eggs. [{A. Loveridge describes, in Proc. 
Ent. Soc., 1921, p. xe, the large Mylabris oculata Thunb., 
var. tricolor Gers * ovipositing in a hole about 1 in. deep. | 
I had hoped to follow up a tip from Lamborn to look for 
them in contact with Acridian ova, but they were in 
contact with nothing that I could find. The other 2 was 
just startimg to excavate. That is only one of many 
disappointments. 
[The remainder of this section describes a somewhat 
different Mylabrid association from another locality. The 
material is tabulated in detail on p. 432. The species were 
kindly determined by Mr. K. G. Blair with the able assist- 
ance of Mr. H. Britten in the preparation and examination 
of male genitalia. | 
