GENUS ALEURODICUS. 41 



There is a short, evenly trimmed marginal fringe of white wax all 

 around and from the two anterior abdominal pairs of pores extremely 

 long overhanging white waxen rods are secreted, one from each pore. 

 These give the case the appearance of a phalangid with four white 

 legs. The agglomerate pores secrete a small amount of granular wax. 



Adult female. — Length, 2.24 mm. Vertex (PI. IX, fig. 9) pro- 

 duced, somewhat cone-shaped, with a median longitudinal furrow; 

 ocelli large and distinct. Antenna? (PI. IX, fig. 10) of seven seg- 

 ments: I, 0.064 mm., cylindrical; II, 0.096 mm., broad, pyriform; 

 III, 0.208 mm., narrow, cylindrical; IV, 0.128 mm., cylindrical; V, 

 0.08 mm., cvlindrical, armed near its distal end with a fringed sen- 

 sorium; VI, 0.016 mm., cylindrical; VII, 0.064 mm., armed at about 

 its median part with a fringed sensorium and terminating in a 

 bristle. Segments III-VII imbricated and armed with fine hairs. 

 Between segments V and VI and VI and VII small ring-like seg- 

 ments can sometimes be observed. 



Forewings 2 mm. long, 1.2 mm. wide, transparent, marked with 

 dark brown, as shown in Plate IX, figure 7; hind wings 1.76 mm. 

 by 0.96 mm., marked with brown, as in PI. IX, figure 7. In the 

 forewings of freshly emerged adults, before the markings are evident 

 the cubitus can be distinctly seen (PI. IX, fig. 8). 



Fore-tibise 0.448 mm. ; fore-tarsi, proximal segment 0.192 mm., dis- 

 tal 0.112 mm.; hind tibiae 0.72 mm.; hind tarsus, proximal segment 

 0.288 mm., distal 0.144 mm.; claws of foot (PL IX, fig. 14) well 

 curved and acute, paronychium a narrow hairy structure armed with 

 a central spine ; ovipositor acute, armed with the usual spines. Color 

 of head and thorax a reddish brown, shaded on the segments and 

 appendages with dusky. Eyes brownish black, apparently not di- 

 vided. Abdomen a brownish yellow, the red portions of the eggs 

 within often showing as a red blotch. 



Adult male. — In general appearance similar to the female. Fore- 

 wings 1.84 mm. by 0.9 mm. ; length from vertex to tips of claspers 

 2.64 mm.; genital segment 0.512 mm. long (PI. IX, fig. 11) ; claspers 

 0.48 mm., curved and acute; penis short and recurved. 



Genus ALEURODICUS Douglas. 



Aleurodicus Morgan. Ent. Mo. Mag. (2) vol. 3. p. 32 (1892). 



Forms in this genus have radius i, radial sector, and the media 

 present in the forewing, with sometimes an indication of the cubitus. 

 The paronychium is represented by a large spine and the pupa case 

 has large compound wax pores. A study of the forms indicates three 

 subgenera. 



Type, anonce Morgan. 



