.\[iliiJi(luu of Fonini«i.— 3. 19 



joint, l)nt Ioniser (liau (lie l(,li aiik'iiiial juiiit, about 1.8 tiint'« as lung as tlic I'auda. 

 Cauda cnsiforiu, witli 7 bristlus. 



Wini; veins normal; liiud wings witli 2 paiMlItd obli(pics; hookluts 3. Legs 

 long, provided with many luotlenite to rather long setae; liiud tarsi longer than llio 

 base of the last antennal joint. 



Length of body-about 2.1 nun. Antenna about 2.2 mm. 

 Fore wing-about 4.0 mm. Corniele-about O.'i mm. 



Host.-Alojicci'riis iiri//ia/is. attacking the stem and the base ol'the leaf. 



Distribution.- I'^ormosa : 1'aiiioku. 



Some wingless viviparous lemales and a winged one were collected on January 

 14,192:5, by the author. 



This spceies differs from MacrnKijihuvt (jnaiuf'nini Kirby in tiie following 

 chai'actcrs: 



1. Coruicles not black, being pale green or pale brown, with the apices black. 



2. Wingless viviparous females without markings on the dorsum of the abdomen, 

 o. Spur of tile last antenuel joint shorter than the 3rd antennal joint. 



Macrosiphum sp. 



(Plate J, k.) 

 Wingless viviparous female. 



Green. Kycs black. The ;'>r(], 4tli and oth antennal joints brown, with 

 iilacl.; iipiccs, the Oth alniost black. Cornicles mostly black, with the basal one third 

 ])ale green. Cauda pale green. Feiiioia [ale greenish; tibiae pale brownisli; apices 

 of tibiae, and the tarsi black. 



Jjody long, somewliat nariowed. lie ail [irovidcd with some moderate to rather 

 long bristles w hieli are slightly knoblied. Frontal tubercles very large, nearly as 

 long as the 2nd antennal joint, sliglitly convex ou the inner side. Antennae very 

 long and slender, provided witli some modia'atcly long setae, some of which are 

 slightly knobbed; the 1st 'oint very large, almost twice as long as the 2nd antennal 

 joint; tlie ord not iinbric.ited, ou the basal one-third, provided with about 8-13 

 rather small circular sensoria that are not in a single row; the 4th scarcely imbri- 

 cated, lacking sensoria; the f th somewhat imbricated; the relative length of joints as 

 follows: III-220, IV-195, V-170, VI 303 (53-^250). Eostrum reaching beyond 

 till; middle coxae. 



Alidomeu providinl with some iiKjdcrately long hairs which are slightly 

 cnpitalc. 



