224} MANDIBULATA. — COLEOPTERA. 



subtruncate : clypeus transverse, the anterior margin refiexed, entire : thorax 

 convex, with the sides dilated anteriorly, and the hinder margin subcarinated : 

 scutellum short, rounded : elytra a little depressed ; rather shorter than the 

 abdomen; body ovate, pilose : the four anterior claws very unequal, one being 

 slender and simple, the other bifid; the posterior ones simple, somewhat 

 unequal, the inner one being rather the least. 



The bifid unequal claws at once distinguish this genus from 

 Melolontha, exclusively of other characters, derived from the nine- 

 jointed antennse, subfiliform palpi, &c. ; and from Anomala, the 

 form of the thorax, which is narrow behind, and the pubescent 

 body, will enable any one to divide it. 



Sp. 1. Horticola. Ovata, hirta, caeruleo-virescens, elytris striatis, testaceis, aut 

 nigris, aut nigro-brunneis. (Long. corp. 3 — 5 lin.) 



Sc. Horticola. Linne. — Martyn, pi. 4. f. 43. — An. Horticola. Steph. Catal. 

 116. No. 1191. 



Green or blue, clothed with long hairs : clypeus thickly punctured : thorax 

 convex, punctate : elytra slightly convex, coarsely punctate-striated, deep, 

 slightly glossy, rufo-testaceous or ferruginous, with the lateral margin dusky : 

 body and legs greenish-black. 



Var. (3. Steph. Catal. I. c. — With the elytra of a bluish-black. 



Very variable in the colour of the elytra ; sometimes the base alone is bluish- 

 black, at others the suture : again some examples have the disc alone slightly 

 testaceous, and the rest of the surface bluish-black, or brown : every inter- 

 mediate shade may be obtained : the dark varieties are however rare. 



Common in June and July, throughout the metropolitan district, 

 frequenting hedges and wood sides. " Common in Cambs., and 

 occasionally in great profusion. - " — Rev. L. Jenyns. " York, 

 &c." — W. C. Hexvitson, Esq. " Newcastle and Keswick, very 

 abundant." — G. Wailes, Esq. " Extremely common, particularly 

 on roses (near Swansea)." — L. W. Dillwyn, Esq. " Common 

 near Carlisle; and at times it appears in immense numbers." — 

 T. C. Heysham, Esq. 



Sp. 2. errans. Testacea, thorace maculis duabus nigris, aut immaculato; pe- 



dibus rufo-testaceis. (Long. corp. 4 lin.) 

 Sc. errans. Fabricius.— An. errans. Steph. Catal. 116. No. 1192. 



Pale-testaceous, slightly pubescent : eyes dusky : head and thorax thickly punc- 

 tate, the latter with an obscure dusky spot on each side towards the margin : 

 elytra obscurely punctate-striate, the striae disposed in pairs, and the inter- 

 stices faintly punctured : legs pale testaceous, with the denticulations of the 

 tibise and the tarsi somewhat piceous. 



