Platynaspis.] CLAVICORNIA. 175 



and the remainder are widely distributed, representatives occurring in 

 Africa, Ceylon, China, India, the Malay Archipelago, &c. ; they are 

 related to Scymnus in having the upper surface pubescent, but differ in 

 the formation of the head. 



P. luteorubra, Goeze (villosa, Fourc.). Subovate, moderately 

 convex, distinctly clothed, especially at sides, with rather long yellowish 

 pubescence ; punctuation fine and close but distinct, more so on elytra 

 than on thorax ; colour black, each elytron with two red spots, the one 

 before middle and the other near apex ; the thorax is usually bordered 

 with yellow or has a triangular patch of yellow on each side, but this is 

 sometimes absent ; in the male the head is usually reddish-yellow and 

 in the female black, but this does not appear to hold good in all cases ; 

 the legs are partly testaceous. L. 2|-3| mm. 



Male with the sixth ventral segment of abdomen emarginate at apex, 

 female with the same segment small and broadly rounded at apex. 



At roots of grass and by sweeping ; found, more frequently, under bark of firs, 

 willows, &c., especially in winter ; local, but not uncommon in some places ; Barnes, 

 Richmond Park, Esher, Weybridge, Chatham (in profusion under bark of dead 

 standing firs (Champion and Walker)) ; Folkestone; Deal ; Hastings ; Chesil Beach, 

 Portland 5 Shipley; Hertford; Swansea; Sherwood Forest. 



CHIZiOCORUS, Leach. 



This genus contains about thirty species, which are very widely dis- 

 tributed, more especially in tropical countries ; two only are found in 

 Europe, both of which occur in Britain ; they may be distinguished by 

 their very convex and gibbose form, and by the strong lobes at the sides 

 of the clypeus ; the legs are strongly retractile, and the insect, if alarmed, 

 gathers itself up on the leaf on which it may be resting, and, if forced 

 to drop, feigns death ; the larvae are black and have the body furnished 

 with six rows of branched spines ; they feed, according to Mulsant, on 

 gall insects ; the pupa is remarkable for remaining within the split 

 dried larval skin, within which it is plainly visible. 



I. Head black ; each elytron with a large round red spot ; 



size larger C. SIMILIS, Rossi 



(renipustulatus, Scriba). 



II. Head red ; each elytron with a transverse interrupted 



band; size smaller C. BiPUSTT/LAXtrs, L. 



C. similis, Kossi (renipustulatus, Scriba). Hemispherical, very 

 convex, gibbose, with shoulders strongly marked, shining black, with a 

 large rounded and somewhat transverse spot on middle of each orange- 

 red ; abdomen reddish ; legs black ; thorax very finely, elytra finely 

 but rather distinctly, punctured ; the sides of the thorax are occasionally 

 reddish. L. 3|-4| mm. 



Male with the fiftli ventral segment of abdomen truncate at apex, 



