The early stages of none of the thirty odd species of the genus Phasis (Lycaenidae) occuring in South Africa were known until quite recently. The food-plants being altogether unrecorded, it was difficult to trace any individual species. The majority occur at the Cape; a few others are scattered over the arid regions of the Karroo, and South West Africa and one or two occur in the Transvaal.
This species, very well descriptionbed by Westwood and illustrated by Angas, has evidently been misidentified by Rothschild, who referred it to caffraria Stoll. Distant, who at first (1897) agreed with Rothschild, due also to a misidentification (he took alcinoï¿½ Cr. for angasana), corrected his mistake in Insecta Transvaaliensia (1911). Notwithstanding this, later workers continued treating angasana as a form of alcinoï¿½ Cr. (of which caffraria Stoll. is a form) .
The genus Alluaudomyia was erected in 1913 by Kieffer for imparunguis collected by Alluaud and Jeannel in British East Africa. Since bellus Coq. is regarded as a synonym of splendida (Winn.), Malloch's Neoceratopogon: falls away under Alluaudomyia. Carter, Ingram and Macfie in erecting the genus Prionognathus, pointed out that it was very like Alluaudomyia, but differed chiefly in the character of the wing microtrichia. Prionognathus being preoccupied, the generic name was changed to Thysanognathus. Macfie (1924) in a footnote to his paper on some Egyptian midges pointed out that Hoffman had found Thysanognathus and Neoceratopogon to be congeneric. Johannsen (1934) gives Isoecacta poeyi Garrett as a synonym of C. bellus Coq.
At times when bands of hoppers of the phase gregaria of the brown locust are prevalent in the Karroo, locust officers and farmers frequently find hoppers ,dying as a result of the attack of fly maggots. The presence of the maggots in the hoppers naturally attracts a good deal of attention, and the Department of Agriculture is often asked whether these natural enemies could not be enlisted in the fight against the locust.
Podothrips graminum Priesner. 1937 Podothrips longiceps Jacot-Guillarmod (in. part). On receiving Priesner's descriptionption, I restudied my specimens of P. longiceps m. and found one macropterous male to belong to graminum. Comparison with two of Dr. Priesner's paratypes, which he was kind enough to send me, proves it without doubt to be graminum. This specimen was taken at Potgietersrust, Transvaal, 29-V-1933, on grass (J. C. Faure).
From a review of the voluminous literature on the body temperature of insects, it is apparent that the available data are rather fragmentary and in some cases inexact. For example, the temperature of the same species has, in some instances, been found to be higher and in others to be lower than that recorded for the surrounding atmosphere. This lack of uniformity in results may be attributed to faulty technique, inaccuracy of the apparatus used, or to conclusions based on an insufficient number of observations.
In March 1935, at the end of the very extensive campaign of 1934-1935, field experiments were being conducted with the object of studying the technique of the application of bait against the hoppers of the brown locust. During the campaign, serious stock losses had resulted from excessive spraying with sodium arsenite solution, and this led to agitations against its use by the farming community. It was consequently felt that for future campaigns the policy of large scale spraying would have to be abandoned, and that the use of sodium arsenite would have to be limited as far as possible.
Pseudococcine forms in which the adult female becomes enclosed in a closely felted sac. Anal ring of the adult female with eight setae of which six are situated normally and two just beyond the anal ring of pores at the posterior extremity of the anal orifice. Anal lobes small but conspicuous. Cerarii confined to the anal and penultimate segments. Posterior abdominal segments with or without transverse rows of stout conical spines. Antennae of 8 or 9 segments. Tarsal claws without a denticle. Dermal pores of the types normally found in Pseudococcine forms.
In part I the species are listed under their families and orders. The known food plants, the nature of the damage done, and the geographical distribution are noted for each species. The geographical distribution is usually indicated by reference to administrative districts.