172 Robert Newstead: 
puparium of the female having no „median longitudinal ridge“, by the entire absence 
of dorsal pores to the mid area of the pygidium; the much longer spines between 
the median lobes and the unusual transverse position of the spine-like process 
over the upper lobule of the second pair of duplex lobes. 
Habitat: „Auf Maerolobium sp. Guinee Francaise VI. 1902. Chevalier Lig. 
Coll. Dr. Busse.“ 
Mytilaspis citricola, Packard (= Lepidosaphes beckii. (Newm.); Fernald, 
Catalogue). Coceidae of the World. P. 303 [1903]. 
Habitat: D. Ost-Afrika, Dar es Salaam, April 1902. Auf Citrus sp. Prof. 
A. Zimmermann (Nr. 5). 
Two females in company with Aspidiotus trilobitiformis Green. 
D. Ost-Afrika, Dar es Salaam. Auf Citrus sp. April 1902. Prof. A. Zimmer- 
mann S. (Nr. 3). 
The leaves of the food-plant (Cirus sp.) were, as is usually the case, covered 
with both male and female puparia. 
Aleurodes marginata n. sp. (Newstead). 
Puparium elongate without secretion of any kind: black, surface highly polished;; 
margin flat; dorsal area rounded or depressed; median dorsal rige to abdominal area 
segmented. Ventral flange (fig. 12a) unusually broad; marginal papillae spinose 
G d b a 
Fig. 12a—d. Aleurodes marginalä (a); A. zimmermanni (b) ; A. eitricola (ce); A. filieicola (a). 
and laterally dentate. Dorsal spines in three pairs, the flirst one placed in the middle 
of the cephalie area, the second pair immediately in front of the abdominal segments, 
the remaining pair immediately anterior to the vasiform orifice; the first and second 
pairs are widely separated. Rudimentary leg-sheaths visable on venter when the 
chitine has been rendered sufficiently transparent by maceration. Vasiform orifice 
almost eircular with the anterior margin truncate. 
Habitat: D. Ost-Afrika, Sigithal bei Amani, auf Urwaldbaum, 4. VIII. 1902. 
Prof. A. Zimmermann 8. (Nr. 17). 
