Apliididau of Formusa. — I. 57 



] )r. Sliivaki collected a few winged and wingless females in Ma}^ 

 \\)2] in Kosliyun. 



Apliis maiclls Fit'-.h. 



Aphis maidis, Fitch, Insects N. Y., vol. i. p. :^!8 (18.").-;): Oestland, 

 Geol. Nat. Hist. Survey Minnesota, Bull 4. p. r^r, (l.ss 7): Sanborn, 

 Kansas Univ. Sc. Bull. vol. Ill, No. 1, p. 58. pi. xi, fig. (J0(1'JU4); 

 Davis, U. S. Dept. Agr. Bur. Enl. Tech. Ser., No. 12 (1909): FuUaway, 

 Ann. Kept. Hawaii Agr. Expt. St.. p. 41 (1910): Patch, Maine Agr. 

 Expt. St.. Bull. 202 (1912): Theobald, Bull. Ent. Kes., vi, p. 128 

 (191.".): Das, Mem. Ind. Mus. vi, p. 20S (191cS). 



Sijjhonaphis maidis, van der Qoot, ( 'ontrili. Faun. Ind. Neerland.. 

 i, iii. p. Cm (1917). 



«*#- Mmmmmmm^ no. 8, p. 120 c;*:3ez:^) 



Hosts. — Wheat: oats; grasses. 

 Distribution. — Formosa; Japan (Toki(.i). 



Java (v. d. G); India (Das); Hawaii (Fullaway): Africa 



(Theobald); North America. 



ApUs ficicola n. sp. (PL. iv, 2, figs. 13-17). 

 Wingless viviparous female. 



Described from specimens preserved in alcohol. 



Body and antennae blackish brown. Eyes, coi'nicles and cauda 

 l)lack. Legs black, except the basal half of femur and the middle 

 part of tii)ia which are dark brown. 



Body wide, with some long fine hairs. Eyes rather small. 

 Frontal tubercles very short. Antennae slout, provided witli many 

 long fine liairs: the 3rd joint imbricated, lacking sensoria; the relative 

 lengtli of joints as follows: III-30, IV-22, V-24, VI-3.3 (10 + 25). 

 Rostrum reaching almost the middle coxae. Prothorax with a 

 lateral tubercle. Abdomen with a few lateral olituse tubercles which 

 are smaller than those on the prothorax. Cornicles \ery short, almost 



