Ajiliidklae of Formosa 4. 4 J 



Wingless viviparous female 



Dark brown, somewhat yellowish, not covered with white wax. Legs black, 

 brownish on the liases of femora and the portions near the bases of tibiae. In 

 specimens treated with caustic potash, antennae dusky on the apex of the 3rd 

 joint and the 4th, 5th and 6th, abdomen with some dark brown spots, cornicles, 

 Cauda and anal plate dark brown. 



Body oval. Head divided, provided with many very stout erect hairs, of 

 which those on the front are a little longer, but somewhat shorter than the 2nd 

 antennal joint. Antennae slender, a little shorter than the front tibia, provided 

 with some very stout erect setae which are somewhat shorter than those on the 

 head: the 3rd and 4th joints without sensoria ; the 5th provided with a small 

 or medium-sized circular sens irium near the apical primary one that is not very 

 large; the relative length of joints about as follows : III-170, IV-68, V-C5, VI-51. 



Rostrum slender, reaching beyond the hind coxae. Abdomen provided 

 with many moderately long bristles. Cornicles situated on large hairy cones, 

 the hairs on which a>-c longer than those on the abdomen. Cauda very short, 

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

 furnished with many very long bristles. Legs long, stout, provided with many 

 very stout setae: tibiae much stouter than the antenna: hind tarsi shorter than 

 the 3rd antennal joint, the 2nd tarsal joint about twice as long as the 1st. 



Length of body — about 5.5 mm. Antenna— about 2 mm. 



Hind tibia — about 4.2 mm. 



"Winged viviparous female 



In a specimen treated with caustic potash, antennae black, paler on the 

 basal half of the 3rd joint, head and thorax blackish, abdomen with some 

 brownish spots, femora black except on the bases, tibiae black at the base and 

 on the distal half, cornicles, cauda and anal plate dark brownish. 



Head divided, with many very stout bristles, of which those on the front 

 are somewhat longer, almost as long as the 2nd antennal joint. Antennae 

 slender, shorter than the middle tibia, provided with some erect very stout setae 

 which are shorter than the 2nd antennal joint, much shorter than the hairs on 

 the head; the 3rd joint provided with 12-13 medium-sized or rather large 

 circular sensoria arranged in a row over the whole length except on the base; 

 the 4th with 2 similar sensoria on the distal half: the 5th with a medium-sized 



