Coccilldla.] OLAVICOUNIA. 165 



tinctly produced ; elytra with a common spot at base of suture, and three 

 other spots on each, black ; these are variable iu size ; legs and under- 

 side black, epimera of mesosternum white. L. 5|-7| mm. 



Male with tlie sixth ventral segment of abdomen truncate before apex 

 and furnished witli a transverse polished fovea. 



On herbage, &c. ; very commoa and generally distributed throughout the 

 kingdom. 



C. distincta, Fald. (lahilis, Muls. ; magnifica, Kedt.). Yery like 

 the preceding in general appearance and very easily confused wdth it ; 

 it may, however, be easily distinguished by the shape of the anterior 

 angles of thorax, which are much broader, more rounded, and not nearly 

 so projecting ; the apex of the episterna of metasternum as well as the 

 .epimera of mesosternum are white, and the sixth ventral segment of the 

 male is not furnished with any impression ; in most of the specimens I 

 have seen the black spots on disc are larger, but this does not appear 

 to be a reliable character. L. 5|-7| mm. 



Sandy places, by sweeping heath, SiC; very local, but not uncommon where it 

 occurs; Weybridge (in numbers, Power), E^her, Horsell, Farnbam ; Kingsgate; 

 Whitstable ; Heme Bay ; Hastings ; Lewes, in and about ants' nests ; it is only found, 

 apparently, in the Loudon and South-eastern district. 



HAXiirZIA, Mulsant. 



This genus, in its widest sense, contains considerably more than a 

 hundred species which are very widely distributed ; Mulsant and Crotch 

 have, however, divided it up into nineteen smaller genera, but the difl'er- 

 ences are so slight that they can hardly be admitted ; several of the species 

 are exceedingly variable as regards colour; important distinctions are 

 drawn by Mulsant from the presence or absence and the shape of the 

 plates on the first segment of the abdomen, a character of which he has 

 made considerable use throughout his work on the group ; for conveni- 

 ence' sake, however, these have not been here taken into account. 



L Elytra lighter or darker castaneous-brown or 



fawn-coloured with yellowish-white spots. 

 i. Prosternum with two raised keels ; elytra 



with a narrow side border and with six spots 



on each H. duodecimguttata, Poda. 



ii. Prosternum without keels. 



1. Side margins very broad ; size larger; 



each elytron with eight spots .... II. SEDECliiGUTTATA, L, 



2. Side margins narrow ; size smaller. 



A. Form more convex and rounder ; each 

 elytron with seven spots, the two near 

 base being separate and more or less 



round H. quatuoedecimguttata, L. 



B. Form less convex and more elongate; 

 each elytron with nine spots, the two 

 near base being dentate and often con- 

 fluent H. OCTODECIJIGtriTATA, L. 



