Pristiphora leucopus (Hellen, 1948)

Grearson, K. John & Liston, Andrew D., 2012, Review of seasonal polyphenism in the Symphyta (Hymenoptera), exemplified by Pristiphora leucopus (Hellén, 1948) (Tenthredinidae), Zootaxa 3502, pp. 72-88 : 74-75

Pristiphora leucopus

Adults with mainly white hind femora (summer morph), and larvae

England: Gloucestershire: Minchinhampton Common (SO862008), 5 larvae on T. cordata , 6.6.2008. 2♀ emerged 21.6.2008, one with white hind femora, leg. KJG. 1 parasitic wasp emerged 4.6.2008, leg. KJG .

Norfolk: Oxborough , 3 larvae on T. cordata collected by J. Badmin, 4.6.2004. 3♀ emerged 14– 16.6.2004, leg. KJG .

Surrey: Wisley, RHS Gardens , Tilia Arboretum (TQ064577), 1♀ swept 19.6.2002, 1♀ swept 7.7.2005, leg. AJH .

Further rearings from Wisley stock. The ♀ arising from eggs laid by black-legged females, rearing code KJG/2011/02 (see below), were used to establish several consecutive rearings: white-legged females emerged from rearing KJG/2011/07 (second spring generation) on 18 / 19.6.2011 and were used to start rearing KJG/2011/13 (third spring generation) from which emerged 14 white-legged ♀ between 20– 25.7.2011. These ♀ were used to start a fourth generation rearing on T. × europaea (rearing KJG/2011/14) and 13 ♀ emerged 25– 28.8.2011. One additional ♀ with black hind femora was found dead in the box on 8.9.2011. 7 ♀ from this rearing were used to start a fifth generation feeding on T. × europaea, (rearing KJG/2011/18); some of the larvae were fed on T. cordata and some on T. × europaea, 11 ♀ emerged 21– 27.9.2011. 10 of the fifth-generation ♀ were placed in a sleeve with T. cordata twigs 21– 24.9.2011 (rearing KJG/2011/21), but no oviposition was noted and no larvae found, leg. KJG.

Wiltshire: Ashton Keynes (SU048938), 1 larva on Tilia × europaea, 6.7.2003, 1♀ emerged 18.7.2003, leg. KJG. 1♀ swept 7.4.2011 at Upper Waterhay SSSI, Ashton Keynes (SU068937), an unimproved neutral meadow with no Tilia , leg. KJG. Warminster (ST879442), 2 larvae on T. cordata , 8.7.2003, 2♀ emerged 22.7.2003, leg. KJG. Water Eaton (SU0133950), 2 larvae on T. cordata , 28.7.2003, 2♀ emerged 10 and 11.8.2003, leg. KJG; 1 larva on T. cordata , 1♀ emerged 12.6.2004, leg. KJG. Brinkworth, Webb’s Wood (SU045855); five larvae on T. cordata , 1.6.2004, 2♀ emerged 11 and 12.6.2004; 1♀ swept 22.7.2005; many larvae beaten 20.7.2008 from T. cordata , 19♀ emerged 28.7.– 5.8.2008; 1early instar larva beaten from T. cordata , 28.8.2009; 1♀ taken with last, laid eggs in captivity from which larvae were reared, 1♀ emerged 24.9.2009, leg. KJG. Swindon, Purton Stoke (SU095897), 10 larvae on T. × europaea, 4.6.2004, 4 preserved and 5♀ emerged 12.6.2004, leg. KJG. Dauntsey (ST993819), 1 larva beaten from T. × europaea, 4.6.2004, released. Purton (SU093875), 2 larvae on T. × europaea, 4.6.2004, released.

Finland: U. Helsinki: 1♀, Laajasalo, leg. E.O. Peltonen (from L.H. Woollatt collection, BMNH) . Laajasalo , 1♀ with left antenna missing, 1964, leg. E.O. Peltonen (from L.H. Woollatt collection, BMNH) . Viipuri : 1♀, leg. M. Hayrynen, det. O. Conde in 1942 as P. ruficornis , det. Lindqvist 1956 as P. leucopus . N. Munksnäs: 1♀ without head, 1967, det. Lindqvist (from L.H. Woollatt collection, BMNH) ; 1♀, 29.7.1965, det. Lindqvist, dissection on slide no. 21.14.66.1 ( BMNH) . Also a drawing by VV from a slide of penisvalve of a male from Helsinki, ex ovo, leg. E. Peltonen (leg colour unknown).

Germany (all leg. ADL, coll. SDEI): Brandenburg: Müncheberg , 2♀, 10.8.2011 . Trebnitz , 1♀, 11.9.2011 . Waldsieversdorf , 3 larvae and two cocoons collected from T. cordata , 2.6.2010 , given to KJG for rearing on 4.6.2010. These larvae would only eat T. cordata . 3♀ emerged 13– 16.6.2010 . 11♀, 1♂, swept 2.9.2011, slide of penisvalves KJG/X193,1 large larva, 11.9.2011; 2♀, 3.9.2011; 1♀, 1 large larva, 10.9.2011; 1♀, 13.9.2011; 1♀, 17.9.2011; 1♀, 21.9.2011; 2 large larvae, 26.9.2011; all swept from T. cordata .