12. HEMIPTERA.
1. Cocci else
by
ROBERT NEWSTEAD.
With 31 figures in the text.
This collection of Coccidae, made by Dr. YNGVE SJOSTEDT in Kilimandjaro,
East Africa, contains seven species representing six genera: six of the species being
new to science. Excluding the larvae, which it is practically impossible to count,
this collection consists of 192 individuals in the following proportions: Monophlebus
pallidus, n. sp., 1 J": M. Sjostedti, n. sp., 1 adult ?, 2 immature ??; Walkeriana
africana, n. sp., 49 ?? and numerous larvae; Stictococcus multispinosus, n. sp., 7 ??
and a few young ??; Dactylopius coccineus, n. sp., 31 ??; Riper sia anomala, n. sp.,
42 ??; Saissetia (Lecanium) oleae, BERN., 59 ??. The difficulty of obtaining satis-
factory preparations for microscopical study is, however, so great that many of the
specimens had to be sacrificed in order to determine the essential anatomical cha-
racters of these insects; so that in all cases the total number of individuals has been
reduced.
The two species of Monophlebus, as will be seen on referring to the above list,
are poorly represented; but the material, though scanty, was sufficiently well pre-
served for diagnostic purposes, and the great size of the insects also afforded an
easier means of determining their salient characteristics than is usually presented by
this obscure group of insects.
Hitherto nothing was apparently known of the Coccidae of this region, and
Dr. SJOSTEDT is, therefore, to be congratulated on the discovery of so large a pro-
portion of new species some of which are quite remarkable. In a collection so rich
in new material it is not possible to offer, in a comprehensive form, extensive ob-
servations on the Coccid fauna of this region as compared with that of other parts
of the African continent more especially so as our knowledge of the coccid fauna of
Africa is, broadly speaking, so little known at the present moment. It is interesting
to note, however, that, so far at least as the collection goes, there is an entire absence
Sfootedts Kilimandjaro-JMeru Expedition. /'.' 1
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