DACTYLOPIUS CITRI. 165 



Adult female (PL LXIV, fig. 1) slightly elongate- 

 ovate ; covered with white mealy wax, except at the 

 articulation of the segments, where the colour of the body 

 shows through. Marginal appendages equal in length, 

 and equidistant; outer caudal pair of appendages 

 about ten times longer than those at the margin; 

 inner caudal pair very short and placed closely 

 together, scarcely longer than those at the margin. 

 Antennae (PI. LXIV, fig. 2) long, of eight joints ; the 

 second, third, and sixth much the longest ; all the 

 joints with fine long hairs; formula 6, 3, 2, 1, 5 (4, 6, 

 7). Legs longer than the antennae, hairy; tarsus 

 much shorter than the tibiae ; digit ules to claw and 

 tarsi simple. Mentum (PL LXIV, fig. 4) long and 

 somewhat pointed; basal joint much the shortest. 

 Anal lobes (PL LXIV, fig. 3) faintly indicated, each 

 bearing one long and two minute hairs, a ventral group 

 of spinnerets, and two short spines, the latter being 

 situate at the base. Anal orifice with six comparatively 

 short hairs. Dermis with many long hairs and numer- 

 ous spinnerets ; and there are small groups of spin- 

 nerets (PL LXIV, fig. 6) surrounding a pair of short 

 spines, and outside each group a pair of short hairs 

 equidistantly placed all round the margin of the 

 body, indicating the position of the marginal waxy 

 appendages. 



Long, 2-3 '50 mm. 



Male (PL LXIV, fig. 7) reddish-brown, farinose ; 

 legs and antennae paler ; eyes and ocelli black ; 

 wings with an intense blue iridescence. Caudal fila- 

 ments long and rather stout. Antennae (PL LXIV, 

 fig. 9) of ten joints, of which the third and tenth are 

 longest ; all the joints rather thickly clad with fine 

 hairs, those on the apical joint, two of which are very 

 faintly clubbed, being the longest. Legs thickly set 

 with fine hairs ; digitules to claw extremely short 

 and rarely traceable; those of the tarsi ordinary. 

 Genital armature (PL LXIV, fig. 8) shaped somewhat 

 like the stern of a boat and protected by a broad outer 



