140 8ERRICORNIA. 



under-side yellow, breast and under-side of head blackish; legs long, 

 clear yellow. L. 4|-5j mm. 



Male with the head very strongly constricted behind, and the thorax 

 yellow, immaculate. 



Female with the head moderately constricted behind, and the thorax 

 yellow with disc dark, sometimes dark with margins narrowly yellow. 



By beating and sweeping in woods, &c. ; on oak, hazel, hawthorn, and other trees 

 and shrubs; generally distributed throughout the greater part of England and 

 Wales, and in many districts, especially in the Midland counties, very common ; 

 Scotland, not rare, Solway, Tweed, Clyde, Forth, and Moray districts ; Ireland, near 

 Belfast and Armagh, and probably common. 



XAK. fasciatus, 01. Considerably smaller than the preceding, which 

 it much resembles in general appearance; head and thorax rugosely 

 punctured, the former large and much constricted behind, vertex 

 narrowly dark, front broadly yellow; antennae comparatively short, not 

 reaching apex of elytra, yellow at base, fuscous towards apex ; thorax 

 about as long as broad, broadest just before middle, narrowed in front, 

 with the posterior angles right angles; scutellum either fuscous or 

 yellowish ; elytra broader than thorax, of a light grey colour, with the 

 base and a spot before apex, and sometimes suture, dark, apex sul- 

 phureous yellow, punctured in rather strong and distinct rows; under- 

 side and legs yellow, breast more or less infuscate. L. 3-3^ mm. 



Male with the posterior tibiae furnished with a small tubercle on their 

 inner side behind middle. 



By beating and sweeping in and near woods ; somewhat local but rather common 

 in the London, Southern, aud Midland districts of England. I do not, however, know 

 of any localities in England further north than Huustanton (Norfolk), Cuunock 

 Chase, and Glandovey near Barmouth. Ireland, Armagh (Johnson). 



VI. balteatus, Suffr. (fasciatus, var. b, Er.). Very closely allied to 

 the preceding, of which it has been by some authors considered a 

 variety or one of the sexes; in general appearance, however, it is very 

 different, being much darker, with the head black with a yellow spot on 

 forehead, and the elytra dark with a grey band about middle; the pos- 

 terior legs also are fuscous; the general form is smaller and narrower, 

 and the thorax is narrower and longer; the sculpture of the elytra is, 

 perhaps, a little deeper. L. 3-3j mm. 



By beating and sweeping in or near woods ; scarcer than the preceding species, 

 but not uncommon in the London and Southern districts ; it becomes rarer in the 

 Midlands, and I know of no locality further north than Huustauton, where I have 

 taken it in company with M. fasciatus. 



UK. frontalis, Marsh. This species is very easily known by its 

 colour, which is unicolorous black, with the forehead yellow in the 

 male and pitchy (almost unicolorous) in the female ; head rather large, 

 dull, rugosely punctured, antennae fuscous with lighter base; thorax a 

 little broader than long, with the sides almost straight, slightly narrowed 



