524 Mr. D. Sharp and Mr. F. Muir on the Comparative 
Family DISCOLOMIDAE. 
Form examined: Notiophygus sp. (not named in Brit. 
Mus.), 8. Africa. 
Notiophygus atf. nigropunctati (Pl. LX figs. 109, 109a). 
Median lobe strong and strongly chitinised, forming a short tube 
with the ventral edge of the median orifice pointed and projecting 
long beyond the dorsal edge, the median foramen occupying a 
basal ventral position with its ventral edge produced into a strong 
process (pw) by which it is articulated to the tegmen. 'Tegmen 
forming a strongly chitinised cap-piece, enveloping the median 
lobe, which plays through an orifice on the ventral face, the distal 
edge of this orifice is beset with stout short hairs (wv). Internal 
sac well developed, with two small plates (+) as armature. 
The best position we can suggest for this form at present 
is near to Nitidulidae or Monotomidae, but if there is any 
relation it 1s a very distant one. 
Family COCCINELLIDAE. 
Forms examined: JLasia globosa Schn.; Mysia oblongo- 
guttata L. ; Coccidula rufa, Herbst. ; all abundant Kuropean 
forms. Also Lets 22-maculata F., S. Africa. 
Bigs) Wb Ti 2 VP xT. 
Lasia globosa (=Subcoccinella 24-punctata, recently) (Pl. 
LXI fig. 111). 
Median lobe in form of a long, curved, chitinous tube, with 
the median orifice at apex, the lip of which is turned back on 
the dorsal aspect and likewise projects as a thick spine on the 
ventral face; median foramen at base, where the tube is flattish and 
expanded laterally. Tegmen forming a ring round the median 
lobe, the dorsal part consisting of two large lateral lobes, between 
which is a large curved sclerite, pointed at apex and fastened at each 
basal corner to the large strut on the ventral face. This strut is 
thick and expanded at its end, and fits into the expanded end of the 
median lobe (b and ¢) to which it is attached by muscles. Internal 
sac undifferentiated. 
Mysia oblongo-qguttata (Pl. LXI fig. 112). 
The median lobe is very long, thin and curved, the first connect- 
ing membrane is also very long and allows the median lobe to be 
