322 MANDIBULATA. COLEOPTE1U . 



Genus CCXLIV.— Tillus, Olivier. 



Antennae serrate, scarcely longer than the thorax, the second joint short, globose, 

 or ovate, the remainder short, with the terminal one oblong, acuminate. 

 Palpi unequal, the maxillary filiform, the labial securiform : head and thorax 

 rather narrower than the abdomen, the former rounded : eyes sublimate : 

 thorax subcylindric, or a little attenuated behind: body elongate, subcylindric: 

 legs rather short ; tarsi distinctly five-jointed. 



The serrated, subfiliform antennae, distinctly five-jointed tarsi, 

 elongate, subcylindric body, and filiform maxillary palpi united, are 

 the principal points of distinction between this genus and the others 

 of this family. The larvae feed on decayed wood, and the imago 

 is found in flowers and on trees. 



A. With the thorax cylindric. 



Sp. 1. elongatus. Villosus, ater, thorace rubro. (Long. corp. 2\ — 4 lin.) 

 Chr. elongata. Limie. — Ti. elongatus. Steph. Catal. 137. No. 1398. 



Villose : head black : thorax slightly narrowed behind, glossy red, with a narrow 

 black anterior border : elytra deep bluish- or purplish-black, faintly punctate- 

 striate : antennae and legs black. 



It varies much in size, and immature specimens have a pale testaceous spot in 

 the centre of each elytron. 



Not uncommon, in some years, in the lane leading from Darenth- 

 green to the wood, in June; also found at Coombe-wood, and 

 near Hertford, and in Hants and Suffolk. " Windsor." — Dr. 

 Leach. " Camber well. 1 ' — Rev. Professor Henslow. " Baron- 

 wood." — T. C. Heysham, Esq. " Epping." — Mr. Doubleday. 

 " BesselPs Green, Kent. 11 — Mr. Ingpen. 



Sp. 2. ambulans. Villosus, ater, thorace concolore. (Long. corp. 3 — 4 lin.) 

 Ti. ambulans. Fabricius— Steph. Catal. 137. No. 1399. Var. Ti. bimaculatus. 

 — Don. xii.pl. 411. f. 2. 



Villose, black ; thorax elongate, narrowed behind, glossy black : elytra deep 



black, punctate, the punctures disposed in striae : antennae and legs also 



black. 

 This also varies in bulk, and in having a pale rufescent or testaceous spot in the 



middle of each elytron : this last has been given as a species by Donovan, as 



above cited. 



Not so common as the last, and but rarely found near London : 

 it has occurred in Devonshire and in Suffolk. " Hereford." — Rev. 



