HIPPODAMIA VARIEGATA, GOEZE. 23 



Abingdon, near Oxford, I swept up a worker of A. (/>.) nii/er, which 

 had two specimens of this Antiunioji/ionis on its head, a J and 2 , one 

 on the chin of the ant, the other on the upper surface of its head. 

 The mites were evidently courting, as they kept vibrating the front 

 legs very rapidly, and tapping at each other round the ants' jaws. It 

 is very unusual to find A)itennoi>hori on ants outside the nest. 



In June, 1914, Mr. P. A. Buxton sent me up a few tubes of ants 

 which he had taken on Caldey Island, Pembrokeshire. In one of 

 these, which contained some specimens of A. (D.) niijer, I found a few 

 examples of Ante)t)io/i/ioran foreli, one of which was a S . 



These are the only British records for this species. 



S/iJuerohelapK calcariyer, Berl. — In searching through my material 

 of S. holothyr aides for 5^ (? ; I found a specimen of a mite (taken by 

 me in a nest of A. {(J.) inixtits at Box Hill on May 23rd, 1918) which 

 I at once recognised as a distinct species, and which appears to me to 

 be S. calcaii(/er, Berl., a species new to Britain. Berlese records it from 

 the same host. I have sent it to Mr. Hull for confirmation, but all he 

 can say at present is that it is new to him and to Britain. 



Araneina. 



Tetriliis arietiniis, Thor. — An immature <^ , and several ? $ (the 

 T. diversa, Camb.) were captured in the Woking fiditiinusits nest on 

 October 7th. The adult male of this spider has only once been taken 

 in Britain, when I first discovered the species here in a nest of h'. rufa 

 at Oxshott on April 19th, 1900. I am indebted to Dr. A. R. .Jackson 

 for the names. 



Hippodamia variegata, Goeze. 



By G. B. C. LEMAN, F.E.S. 



I. — Descriptions of new aberrations : — ■ 



(1) ab. Donisthorpei, n.ab. 



While going through Mr. Horace St. John Donisthorpe's series of 

 this species, I noticed a variety with an arrangement of the spots, for 

 which I have not found any name recorded. 



The distinguishing feature is the somewhat unusual confluence ia 

 this species of spots ^ and 3, and its formula is 1, 3 + |, 4, 5, 6. The 

 marks on the thorax are the usual isolate two small spots and the 

 short medial line. 



Mr. Donisthorpe's specimen was taken by him on September 29th, 

 1920, at Barton Mills, and the type is in his collection. 



Confluence with spot ^ is not common in this species and occurs, 

 as far as I can trace any records, in the following aberrations : — 



ab. mtulata, Ws. [1879] , formula 1, 2, 3 + i 4 + 5, 6. 



ab. italica, Walt. [1882], formula 1, 2, 3+|, 4, 5, 6. 



ab, iiiacrostu/t)ia, Gabriel [1905], formula ^ + 3 + 5 (in an irregular 

 design), 4. 



According to Weise [B.T. 1885] it also occurs in a subvariation of 

 his ab. niaciilit/era : — 



■" h.)P. 4 + 5 + 6 zu einer dicken und formigen Zeichnung oder 

 zu emer grossen, eckigen Makel vereint. Gleichzeitig kann auch P. 

 1 + 3 verbunden sein, oder es fehlen die Punkte 3, 2, und 1 giinzlich. 

 > . . y> niacuWjera, Weise." 



