243 



Tylococcus (jlffardi sp. n. 



Adult female viviparo;is, thickly covered with white pow- 

 dery secretion, not hiding segmejitation. Body about 3 to 

 3I/2 nun. long by l^/ij to 2 mm. broad. Margin beset with 

 long, coarse, white appendages, 17 on each side, which are 

 subequal in length, except the last 3 pairs near caudal end, 

 which are much longer and more or less curved and aliout 2 

 to 2V2 mm. long. The insect superficially has the appear- 

 ance of an Orthezia. Color of body light pink or pinkish 

 brown, which is easily seen on the ventral side. Legs and 

 antennae light brown. When placed in potassium solution 

 insect turns ferruginous brown, with a dark central spot in 

 body and light margin. Antennae long and slender, of eight 

 joints, of wliich the eighth is the longest. Joint 1 next, but 

 very little shorter. Joints 6 and 7 subequal. All joints with 

 long, stout hairs. Formula: 8, 1, 2, 3, 5, 4 (6, 7). Legs 

 longer than antennae. Coxa broader than long. Trochanter 

 plus femur very little longer than tibia plus tarsus plus claw. 

 Tibia about twice as long as tarsus. Claw stout, with short 

 flattened digitules, those of tarsus very long slender hairs. 

 Anal orifice" with six stout hairs, very little shorter than cau- 

 dal setae. Caudal lobes very pronounced, quite broad, with 

 many short, stout conical spines, varying in size, the longer 

 ones' in the center of the round-pore-area. Marginal processes 

 or tubercles, not as prominent as those figured in the descrip- 

 tion of T. madagascariensls IsTewst., but quite pronounced. 



Adult male of the usual type of Pseudococcini, with well 

 developed caudal lobes, each bearing three long setae. Style 

 short and stout. Antennae ten- jointed, of which joints 1 and 

 2 are sube(pial and the longest, and both are broader than the 

 rest. Joint 3 is about twice as long as 4; the rest are sub- 

 equal. Color of body reddish brown. Caudal setae snow- 

 white; eyes black; legs and antennae of a lighter color than 

 the body. 



Habitat. — On the leaves of Pandanus odoratissimus, Ho- 

 nolulu, Hawaii. Differs from T. madagascanensis ISTewst. in 

 not having as pronounced marginal tu.bercles, according to 

 figure in text of description. Also in having more blunt spines 

 on the tubercles. The antennae also vai-y in sequence of joints. 

 I take pleasure in naming this species for my friend. W. M. 

 Giffard, of Honolulu. 



