Anatomy of the Male Genital Tube in Coleoptcra. 491 



Bhysodes sp. ? (Fig. 36). 



Median lobe a strongly chitinised, curved tube, with median 

 orifice on ventral side of apex and median foramen at basal end. 

 Lateral lobes asymmetrical, the right large, flat and subtriangular, 

 the left small and irregularly oval. Internal sac well developed, 

 a large lobe arising from the apex armed with patches of hairs and 

 chitin plates. 



This is a characteristic Caraboid type and must be placed 

 near that family. 



Family PELOBIIDAE. 



Pelohius tardus Herbst, from Brockenhurst has been 

 examined. 



Fig. 40 PL XLIX. 



PcloUm tardus (PI. XLIX fig. 40). 



Median lobe strong, curved, somewhat flattened, produced into 

 blunt barb at tip, with a shallow groove along the ventral side (or 

 the lateral edges turned down ventrally), a membranous tongue 

 (a) covers the basal four-fifths of the groove, the median orifice 

 being covered by this tongue. Lateral lobes large, j^roduced into 

 filament at apex ; articulated to median lobe on dorsal side of base. 

 Basal-piece forming a T-shape sclerite, with a large head. No 

 difterentiated sac. 



Family HALIPLIDAE. 



The form examined is the common European H.fulvus 

 Fabr. 



Fig. 39 PL XLVIII. 



Haliplus fidvus (PL XLVIII fig. 89). 



Median lobe a flattened curved body, deeply grooved along the 

 ventral side, with a membranous tongue («) covering the basal 

 three-fourths of groove ; the basal part expanded, with lateral lobes 

 articulated to dorsal edge. Lateral lobes asymmetrical, left one short 

 and broad, with hairs on inner surface near distal end ; right lobe 

 longer and narrower, with slender tip, inner surface covered with 

 long fine hairs. Basal-piece forming a wide V-shape sclerite joining 

 lateral lobes across the ventral side. No differentiated sac. 



