556 Mr. D. Sharp and Mr. F. Muir on the Comparative 
the tegmen causes us at present to put it, as exceptional, 
along with Oedemeridae. 
Family RHIPIPHORIDAE. 
Form examined: Hmenadia sp. ? Australia. 
Pp 
Fig. 192 Pl. LXXL 
Median lobe long, slender, membranous, supported by a thin 
chitin rod on each side which meet together at the base. Tegmen of 
the Mordellid type. Internal sac undifferentiated. 
This is the same type as Mordellidae (excl. Anaspis). 
Family CANTHARIDAE = MELOIDAE. 
Forms examined: TZegrodera crosa Lec., California. 
Cissites (Horia) debyi Fairm., Borneo. Nemognatha sp.* 
Big, 193) Pl) LX 
Horia (Cissites) debyi (Pl. LX XI fig. 198). 
Median lobe large, flattened laterally, and bent nearly at right- 
angles one-third from base, the whole organ being pistol-shape ; 
median orifice at apex, and median foramen occupying the ventral 
base of basal third. Tegmen consisting of a large “tambour” 
shaped basal-piece, and a single median piece, rounded at the 
apex, representing the lateral lobes. Internal sac undifferentiated. 
Tegrodera crosa. 
Median lobe tubular, flattened laterally, with the median 
orifice on dorsal aspect at tip and median foramen occupying the 
ventral aspect of the basal half; on the ventral aspect near tip 
are two spines, one in front of the other. Tegmen composed of a 
large rounded and curved hasal-piece and a pair of lateral lobes 
consolidated at their base. Internal sac small with a strong curved 
spine at its base. 
Nemognatha sp. 
Median lobe tubular with a large median foramen occupying the 
ventral aspect of the basal half. Tegmen with lateral lobes con- 
solidated to tip, which is roundly bilobed, basal-piece large. Internal 
sac well developed, but without armature. 
* This specimen has unfortunately been lost ; only the dissection 
now exists, 
