Apbididae of Formosa. — 4. 25 



antennal joints taken together, about twice as long a s the cauda, stouter tlian 

 the cauda. Cauda large, very stout, with 5 or 6 bristles. Legs long: femora 

 more slender than the cornicle; tibiae stouter than the :3rd antennal joint, 

 furnished with many moderately long setae: hind tarsi shorter than the basal 

 part of the last antennal joint. 



Length of body — about 2.0 mm. Antenna — about 1.65 mm. 



Cornicle — about 0.55. 



Amphorophora katoi n. sp. 



(PI. IV. A. tigs. 1-6) 

 Wingless viviparous female 



Black. Kyi- reddish brown. Antennae pale brownish, slightly dusky at 

 tie- apices of the 3rd and 4th joints, black on the distal part of the 5th and 

 the 6th. Cornicles and cauda black. Legs almost white to pale brownish, 

 blackish on the apices of femora and tibiae, and tarsi. Body oval. Head on 

 the dorsum provided with 4 very sin rt setae arranged in a transverse row between 

 the eyes and two pairs of much longer setae between the frontal tubercles. 

 These setae are not knobbed. 3 very small ocelli present. Compound eyes 

 normal. Frontal tubercles almost as long as the 2nd antennal joint, on the 

 inner side somewhat convex and furnished with a few setae. Antennae very 

 long and slender, imbricated, with some very short not knobbed setae: the 1st 

 joint much larger than the 2nd. somewhat angulated on the inner side: the 

 3rd furnished with a very small circular sensorium near the base; the 4th 

 without ssnsoria; the relative length of joints about as follows: 111-140, IV-108, 

 V-92, VI-205 (35 + 170). Rostrum reaching the hind coxae, furnished with 

 many rather fine bristles. Abdomen provided with a few very short eetae on 

 the dorsal side, but with some moderately to rather long setae on the ventral 

 surface. Cornicles stout, slightly dilated about the middle, somewhat dilated at 

 the base, imbricated on the distal portion, not reticulated, stouter than femur, 

 almost as Ion-- as the 4th antennal joint, a little more than twice as long as 

 the cauda. Cauda almost as stout as the cornicle, tapering, much longer than 

 wide, furnished with ."> very long bristles. Legs very long and slender; tibiae 

 almost as stout as or slightly more so than the 3rd antennal joint, furnished 

 with many rather short stout setae not knobbed: hind tarsi shorter than the 



