ART. 17 WASPS OF THE GENUS TIPHIA ALLEN" AND JAYNES 53 



and 1 female, September 15, 1921 (Clausen) ; 1 female, October 20, 

 1921 (King). From Suigen, Chosen, 1 female, August 24, 1922 

 (King) ; 43 females, August, 1923 (Clausen) ; 3 females, September, 

 1924 (Gardner), Clausen No. 1856; 3 females, September 11, 1924 

 (Sato), Clausen No. 1856, parasite on Popillaafrocoerulea/Z females, 

 September 15, 1924 (Sato) Clausen No. 1862, parasite on P. cas- 

 tanoptera; 3 females, September, 1925 (Gardner), Clausen No. 1856; 

 (Sato), Clausen No. 1856, parasite on Popillia atrocoeruZea; 3 females, 

 September, 1925, Gardner No. 13 equals Clausen No. 1862; 1 male 

 and 3 females, insectary reared, Riverton Exp. 220; 4 males, in- 

 sectary reared, Riverton Exp. 320; 1 male and 1 female, insectary 

 reared, Riverton Exp. 321; 1 female, insectary reared, Riverton 

 Exp. 318; 2 females, September 12, 1925 (Sato), Gardner No. 5; 

 2 females, September 26 and 30 (Sato), Gardner No. 13; 2 males, 

 Gardnerf No. 5 From Penniu, China, 127, dates from Septem- 

 ber 24 to October 9, 1925, " laid on P. T. grubs '" {Popillia formosana 

 Arr.) ; 1 female, September 30, 1925 (Wong), " laid on P. T. grubs "; 

 29 females, between October 8 and 16, 1925 (Wong) ; 124 females, 

 1926, Jaynes No. 115 (Wong) ; 9 males and 20 females, insectary 

 reared, Riverton Exp. 205 ; 2 males and 3 females, insectary reared, 

 Riverton Exp. 305; 44 females, numbered specimens. From Hang- 

 chow, China, 13 females, between September 4 and October 30, 1924, 

 lettered, respectively, P5, T5, V8, Z6, D6, W7, X7, S8, L8, U7, N8, 

 K8, and V7; 1 female, September 19, 1924. Specimens from the 

 above list have been deposited in the collections of the British Mu- 

 seum, the Illinois Natural History Survey, and the Philadelphia 

 Academy of Natural Sciences. 



This group seems to be one of the dominant complexes in the 

 TipMa of the Oriental region. After studying a much larger series 

 than Rohwer had at the time his description was made, the writers 

 accept his finding on the species, with minor exceptions. His seven 

 paratype females from Suigen, Chosen, which were collected August 

 20, 1923, by C. P. Clausen and recorded, under Clausen No. 3, as 

 parasitic on the grubs of Phyllophaga species, are unquestionably 

 another species which we have described as phyllophagae. Two ad- 

 ditional paratype females collected by J. L. King at Suigen, Chosen, 

 August 26, 1922, also belong under phyllophagae. Certain biological 

 differences exist between the material reared in Japan and that 

 reared in China or Chosen, but a prolonged study of our material 

 has failed to reveal any constant anatomical characters of sufficient 

 importance to elevate them to the rank of separate species. In the 

 Japanese females examined, the pronotal ridge is almost always 

 complete across the dorsum, there is present in a small number a 



