PAMPHILIUS FLAVIVENTRIS. 97 



3. PAMPHILTUS FLAVIVENTRIS. 



Vol. II, PI. XXYII, fig. 9, Cerci ; 9 a, Ant. ; 9 b, 

 Labium. Vol. II, PI. VI, fig. 5, ? ; 5 a, Antenna 

 at base. Vol. II, PL XII, fig. 12, Larva ; 12 a, 

 Head ; 12 b, Cerci after Vollenhoven. 



Tentfiredo flaviventris, Retz., De Geer, 74, 312 (1783). 



pyri, Schrank, Fauna Boica, ii, 255 (1802). 



lutescens, Pz., F. G., Heft 107, pi. vii. 



Lyda clypeata, Klug, Berl. Mag., ii, 279, 14 (1807); Htg., 

 Blattw., 344, 15. 



sylvatica, Newman, Ent. Mag., i, 313, pi. i, f. 4 (lar.). 



flaviventris, Fall., Acta, 1808, 223 ; Thorns., Hym. Sc., i, 



306, 9 ; Ste., 111., vii, 101, 17; Andre, Species, 

 i, 516; Cat., 64,* 33. 



albifrons, Fall., 1. c., 225. 



fasciata, Curt., B. E., viii, pi. ccclxxxi ; Ste., 111., vii. 



102, 20. 



pyri, Zad., Schr. Ges. Konig, vi, 147. 



Black; head and mesopleurse coarsely punctured; a large wedge- 

 shaped mark between the antennae (extending from the clypeus to a 

 little above the antennas) ; base of antennae, tegulse, and legs, straw- 

 yellow ; abdomen fulvous at apex, the sides with a triangular yellow 

 mark in each segment, and which become larger towards the apex ; 

 ventral segments banded with yellow. The coxae and four posterior 

 femora black at base. Wings hyaline ; a broad smoky fascia below the 

 stigma, which with the nervures are black. Generally there is a small 

 yellow spot on the inner side of the eyes above, but this is sometimes 

 absent. The palpi and mandibles are yellow, the apex of the latter 

 piceous. Length 4 5 lines. 



The < lias the head below the antennse yellow, the 

 flagellum reddish beneath, fuscous above at base and 

 the abdomen from the second segment is reddish-yellow. 



The larva is yellow, sometimes orange-red, with a 

 shining black head and thoracic plates. It lives on 

 pear, plum, and cherry trees, also on the white thorn, 

 Mespilus, and other rosaceous shrubs, feeding with 

 many others under the shelter of a common web in 

 June and July. 



Parasites : Opliion mercator, Gr. ; 0. mixtus, Gr. ; 

 Tryphon armillatorius, Gr. 



Probably common in gardens in England. I have 

 not found it in Scotland. 



Continental distribution : Sweden, Germany, Hol- 

 land, Italy. 



VOL. III. 7 



