184 Mr. E. Saunders' Synopsis of 



19. Nomadaferruginata, Kirb. (PI. VII., figs. 6 — 6 b). 



Kirb., Mon. Ap. Angl., ii., p. 218 = germanica, Smith, 

 Cat. Brit. Hym., 2nd ed., p. 126 (nee Panz.). 



Head and thorax black, clothed with greyish brown hairs ; labrum 

 black ; 3rd, 4th, and 5th joints of flagellum dilated in the $ , and 

 black above. Abdomen ferruginous in both sexes, spotted with 

 black. 



cT . Head and thorax black, closely and largely punctm^ed, rather 

 denselj' clothed with greyish brown hairs ; hairs of the face below 

 the antennae and of the thorax below the wings, silvery ; mandibles 

 ferruginous, flavous at the base, somewhat rounded at the apex, 

 which is piceous ; labrum black, armed with a strong central tooth ; 

 cheeks between the eyes and the mandibles flavous ; clypeus tes- 

 taceous at the apex. Antenna with the scape very wide, black ; 

 1st joint of the flagellum hidden ; 2nd much shorter than 3rd ; 

 3rd, 4th, and 5th swollen ; 6th, 7th, 8th, and 9th with a small 

 tubercular elevation at the side ; terminal joint nearly as long as 

 the two preceding together. Thorax with the tubercles and tegulae 

 testaceous ; wings with a dark apical border, otherwise but little 

 clouded ; scutellum with two dull red spots. Abdomen finely 

 punctured, fen-uginous-red, its base black, with a black basal spot 

 on each side of the 2nd and 3rd segments, and a black line at the 

 base of the 4th, 5th, and 6th ; apical segment narrowly rounded, 

 sides and apex of the abdomen with silvery hairs ; beneath punc- 

 tured, the base of each segment black in the middle, and the apical 

 margins fringed with white hairs at the sides ; 8th segment with its 

 apical process short and dilated at the apex, which is sinuated and 

 armed on each side with two strong reflexed spines, the sides of the 

 process fi-inged with hairs (for genitalia see PI. VII., figs. 6 — 6 6). 

 Legs ferruginous ; femora at their base, especially beneath, black ; 

 posterior femora densely hairy beneath ; tibiae with a black spot near 

 the apex. 



$ . Very like the $ , but with the mandibles piceous, the labrum 

 with a central tubercle, face below the antennae without silvery 

 hairs, cheeks between the eyes and mandibles testaceous. An- 

 tennae simple, flagellum ferruginous, slightly darker above ; wings 

 clouded. Abdomen and legs marked as in the $ , but the former 

 with less silvery pubescence at the sides, and the latter with the 

 posterior metatarsi black. Length, 7 — 8 mm. 



Hab. London District, rarely ; Deal ; Eeigate ; Chob- 

 ham ; Blackwater, Hants ; Bournemouth ; Exeter ; Pen- 

 zance ; Yorkshire. Parasitic on Andrena fiUvescens ; 

 appears in July and August. 



