38 



R. Takahashi. 



front tibia, with many long bristles which are almost as lung- as those on the 

 head' the 3rd joint provided with 1 or 2 medium-sized circular sensoria on the 

 distal portion : the 4th with 1 or 2 similar ones on the distal half; the 5th with 

 a similar one m-ar the primary sensorium which is not very large: the relative 

 length of joints about as follows: III-140, IV-54, V-65, VI-46. Rostrum slender, 

 reaching beyond the hind eoxae. Cornicles on large hairy cones. Cauda very 

 short, rounded, with many very long bristles. Anal plate larger than the cauda, 

 broadly rounded, with many very long bristles. Legs very long, covered with 

 many very long bristles: tibiae much stouter than the antenna: hind tarsi 

 longer than the 5th, but shorter than the 3rd. antenna! joint: the 2nd tarsal 

 joint about twice as long as the 1st. 



Length of body — about 4.5-5 mm. Antenna — about 1.6 mm. 



Hind tibia — about 3.Q nun. 



Winged viviparous female 



In a specimen treated with caustic potash, antennae dusky, abdomen with 

 some small dusky s]iols on the dorsum, femora blackish except on the basal 

 portions, tibiae almost as in the apterous form, cornicles, cauda and anal plate 

 dark brownish. Body oblong, covered with many long rather tine bristles. Head 

 divided, with many very long hairs which are a little longer than the 1st 

 antenual joint. Antennae covered with many very long bristles which are 

 somewhat stouter than, but almost as long as. those on the head: the 3rd joint 

 provided with 15-18 medium-sized to very large circular or oval sensoria over 

 the whole length arranged in a single row: the 4th with 3 or 4 very small or 

 large circular sensoria over the whole length: the 5th with 2 sensoria. the 

 primary sensorium very large: the relative length of joints about as follows: 

 111-168. [V-58, V-74, Vl-48. The 1st oblique on the front wing straight; the 

 2nd somewhat curved; the 3rd faint, obsolete at the base, twice forked: stigma 

 large, not elongate at the apex; stigmatic vein stout, almost straight, reaching 

 the apex of the wing: hind wings with 2 divergent obliques; booklets .">. 

 Cornicles situated on hairy cones which are smaller, but higher than those of the 

 apterous form Cauda and anal plate almost as in the apterous form. Legs 

 long, rather slender, covered with many very long hairs; tibiae much stouter 

 than the antenna: front tibiae almost as long as the antenna ; hind tarsi slightly 

 longer than the 5th antenna! joint, the 2nd tarsal joint about twice as long as 



