114 B. Takaha«l.; 



Daring copulation the oviparoui? female, upon the dorsum of which the male 

 cliiuba, usually holds her wings spread out. However, when copulation takes place 

 soon after the last moult of the female, as is sometimes the ease, her wings are car- 

 ried on the back, being not yet dried out, and are trod upon nnd broken by the 

 male. These females with broken wings arc not able to Hy. 



Many sexual forms were collected by the author in June, 1923, at Meguro and 

 Ikegami, near Tokyo. 



Patchia spiraeae n. sp. * 



(PI. X, A, figs. 1-2) 

 Wingless vivijiarous female. 



Body not elongate<^l, provided with many very long stout bristles each arising 

 from a very small tnlierele. Head very short, wide, the dorsal surface provided 

 with about 10 very long stout bristles. Eyes very small, with distinctly protubemnt 

 ocular tubercles. Frontal tubercles lacking. Antennae much shorter than the bods', 

 rather stout, 6-jointed, each joint furnished with a few- very long stout bristles which 

 are shorter than those on the Iwdy; the Ist joint larger than tk? 2nd, provided with 

 3or 4 long bristles; the 3rd not imbricated, without sonsoria, moderately narrowed 

 toward the liase, stouter than th(' front tibia, almost as long as the bristle on the 

 body, with about o very long liristles and a fi^w shorter ones mostly on the distal 

 half; the 4th almost as long as the 5th; the 5tli with a large circular apical sensorium 

 which is surrounded by a row of short haire; the 6th with a similar sensorium; the 

 elative length of joints about as follows: IU4'>, IV 21, V-22, Vl-^P, (15-fl8). 

 Rostrum rather slender, reaching the middle coxae. Body without prominent tuber- 

 rcles. Cornicles distinctly expanded toward the liase, constricted on the distal 

 portion, wider than long, not reticulated, almost as long as the Isisal j>art of the 6th 

 antennal joint, much shorter than the bristle on the Iwly. Anal plate moderately 

 bilobed, provided with one or more pairs of long bristles. 



Cauda longer than wide, narrowed on the distal half, not constricted at the 

 base, with a pair of very long bristles. Legs rather slender; tibiae with many 

 rather long bristles; tarsi normal, longer than the base of the last antennal joint. 

 Jjength of body-about 2.0 mm. Antenna-about 0.7 mm. 



lioat. -Spir(V(i cnnlonlni.vi.s (Rosaeeae). 



Di8tribution.-<Ta}>an: Tadono in Wakayama-prefe<'ti]re. 



A few wingless forms M'ere collected by Mr. M. Kurisaki on May 4,1920. 



This aphis is the second species of the genus Palchin, which is new to japan. 



