241 



quite hairj. Antennae ten-jointed, of the usual type; joints 

 1 and 2 stouter than the rest, joints 8 and 4 subequal and 

 longer than 5, 6, 7, S and 9, which are subequal; joint 2 is 

 subequal with 9, and joint 1 is the shortest. 



Habitat. — Between folded leaves of Acacia koa. Mount 

 Tantalus, Oahu, Hawaiian Islands. Collected by Mr. O. H. 

 Swezey, for whom I take pleasure in naming the species. 



Pseaclococcus galUcoIa sp. n. 



Adult female viviparous, about 2^2 mm. long, with caudal 

 retae S^o mm. long, by II4 mm. broad, convex, varying from 

 ;i grayish green to a yellowish brown color, with a faint dark 

 JJne running lengthwise in the center of the dorsum. There 

 are three pairs of filaments, which are quite pronounced, the 

 two caudal ones being about twice as long as the two preced- 

 ing pairs. The filaments on the four other segments are very 

 short. When placed in hot KOH body turns dark reddish 

 b]-own. Antennae eight-jointed, joint 8 longest. Joint 1 

 twice as broad as 2, both broader than the rest. Joints 1, 2 

 and 3 subequal, joint 1 being broader than long at its base. 

 Joints 4, 5 and 6 subequal and a little shorter than 7. Joint 

 8 is one-third longer than joint 2. All joints bear a few 

 hairs. Legs short and stout. Femur much swollen (middle 

 leg). Femur plus trochanter about subequal with tibia plus 

 tarsus. Claw stout, with short flattened digitules ; those of 

 tarsus are long fine knobbed hairs. Tibia more than twice 

 as long as tarsus. Caudal lobes well developed, with setae 

 about as long as hairs on anal ring, and also bearing two very 

 stout conical spines in a group of round pores in which are 

 also several long fine hairs. Anal ring large, with usual six 

 hairs, which are stouter than the caudal setae. There is a 

 marginal patch,, similar to the one on the caudal lobe, on the 

 penultimate segment. Marginal patches become less pro- 

 nounced cephalad. There are numerous hairs and round pores 

 scattered on the last segment, as well as on the cephalic por- 

 liv.n of the body. 



The galls, or rather pockets, in which the insect lives are 

 usually on the upper side of the leaves. The young larvae 

 station themselves on the underside of the very young, tender 

 leaves, and by irritation cause a depression in the leaf, which 

 grows very quickly, forming a deep, pocket-like gall. As the 



