Apbididae of Formosa. — 3. 51 



domeu provided with a ffw minute setae. Cornicles very short, wider tlian long, 

 somewhat expanded toward the base, not imbricated. 



Cauda very short, much wider tlian long, broadly rounded, with a pair of 

 long bristles. 



Legs rather stout; tiijiac stouter than the antenna, provided with a few modc- 

 nitely long to ratiier short setae; hind tibiae with some very long bristles; tarsi 

 scarcely imbricated, hind tarsi" almost as long as the 3rd anlcnnd joint, 

 liengtli of liody-about 0.75 mm. 



(Fnll-grown nymph of winged viviparous fomalc). Green. Head somewhat 

 dnsky. Eyes blaciv. Antcnna(^ p.i,lc brownish, blackish on the distal part. Thorax 

 yellowish green. Wing pads dusky. Cornicles dusky green. Cauda green. L'gs 

 ;ihnost j)ale Iirown, apices of tibiae, and tarsi dusky. Head somewhat protruding at 

 the middle of the front, provided witli a few rather long liairs. Frontnl tubercles 

 aliscut. Eyes witli small ocular tiilicrcles. Antennae stout, 6-jointed, witli a few 

 moderately long to short hairs; the or.) joint slightly imbricated, stouter than the 

 tibia; the 4th imbricated, shorter than the tas.il two joints taken together; the 5th 

 witii a rather small apical sensorinm; the relative length of joints as follows: III- 

 52, IV-20, V-16, VI-08 (16+42). Rostrum reaching almost the middle coxae. 

 Prothor.ix witli a small blunt tubercle on either side near the hind margin; abdomen 

 wiiliiuit tubercles. '1 lionix and abdomen ])rovided with a ihw rather sliort hairs. 

 CVirnicles very sliort, somewhiu longer tlian wide, somewhat curved, scarcely imbri 

 cated, not constricted, very slightly or not cxi>anded toward tiie base. Cauda when 

 seen from aljove almost tri.uignl ir, with the apex rounded, wider than long, almost 

 as long as the 4:h antennal joint, with 4 piirs of long bristles. Legs furnished with 

 many long bristles; hind tarti much longer than the 4th antennal j(jint. 

 Length of body-about L2 mm. Antenna-about 0.75 mm. 



The cornicles of tiie young nymph are wider th-Mi long, not curved and some- 

 wliit expanded toward tlie base. 



The above description was made from specimens on Heracleutii sp. A few 

 wingless viviparous females were found on the curled leaves of Daucm carotu 

 ( Umbelliferae ) on February 20, 192^, near Taihoku. Many viviparous females, 

 botli winged and apterous, and a few winged males were collected on Coriandrum 

 intinn,! on December 23, 1 23, at Taihoku, but no oviparous females were dis- 

 covered at this time/ 



