Vol. XXV] ENTOMOLOGICAI. NEWS. 299 



single sensorium on the inner side of the segment, about midway from 

 the ends. The fifth with one sensorium near the tip, sixth with usual 

 sensoria at the base of the spur. 



Head with distinct frontal tubercle, prothorax long and with two 

 dentate tubercles on each side instead of one, the usual number. Wings 

 hyaline, hind wing with but a single oblique vein. Abdomen stout and 

 with a row of three black spots on each side in front of the nectaries. 

 Nectaries about three times as long as the cauda and tapering. Cauda 

 short and held with the tip extended toward the head (see PI. xiii, 

 fig. a). 



Measurements: Length of body, 1.81 mm.; width at widest part of 

 abdomen, .76 mm. ; length of antennae by segments, I, .07 mm. ; II, .06 

 mm.; Ill, .24 mm.; IV, .19 mm.; V, .15 mm.; VI, .10 mm.; spur, .5 

 mm.; total length of antennae, 1.31 mm. Length of wing, 1.9 mm. 

 Nectaries, .24 mm. ; cauda, .085 mm. 



Apterous viviparous female. — General color yellowish to dark green. 

 Abdomen robust and with the anal plate broad and conspicuous. An- 

 tennae with six segments and not reaching to the base of the nectaries. 

 Segments one, two, distal part of fifth, sixth and spur dusky to black, 

 other portions opaque. Legs, except femora, dusky to black and the 

 latter dusky at the distal ends. Nectaries black in color and tapering. 

 Cauda short and turned back over the abdomen as in the case of the 

 alate forms. 



Measurements: Length of body, 1.76 mm.; width, .9 mm.; length 

 of antennae by segments, I, -065 mm. ; II, .06 mm. ; III, .22 mm. ; IV, 

 .17 mm.; V, .15 mm.; VI, .09 mm.; spur, .5 mm.; length of nectaries, 

 .24 mm. ; cauda, .08 mm. 



Explanation or Plate XIII. 

 Aphis bitubcrculeta n. sp. Above, alate viviparous female, a cauda 

 enlarged, b antenna. 

 Below, apterous female. 



Monograph of the Chrysophanids (Lepid.). 



My appeal for help from American entomologists has been almost 

 fruitless, only one observer having come to my aid. I want very 

 specially Heodes fieldeni, Chalceria snowi, cupreus, rubidus; Satyrium 

 fuliginosa. I should like also some specimens of Gaeidcs xanthoides, 

 cditha and gorgon. May I again appeal to brother entomologists on 

 your side of the water for help. Palaearctics, exotics or cash given in 

 exchange. — G. T. BEthunk-Baker, 19 Clarendon Road, Edgbaston, 

 England. 



