72 



[March, 1912. 



NOTES ON THE BEITISH SPECIES OF L0NGITAR8U8, Latb. 



fA GENUS OK COLEOPTERA) 



BY J. R. LE B. TOMLIN, M.A., F.E.S., AND W. E. SHARP, F.E.8. 



(^Continued from "p. 7 antea) 



Sect. IV. — Species testaceous, with sutiiral line black, broad, and distinct, and 

 elytral punctuation distinct, but not coarse, more or less dense and 

 confused. 



I. Thoracic punctuation fine, often scarcely visible. 



A. Shape short ovate, very convex L. suhirellus, Duf t. 



B. Shape oblong', rather depressed L. senecionis, Bris. 



II. Thoracic punctuation distinct, more or less strong. 



A. Thorax with aeneous reflection more or less pronoiinced. 



a. Thorax testaceous red or pitchy, with plain metallic 



reflection, pvmctuation of thorax strong, and of elytra 

 entirely confused L. atricillus,Jj. 



b. Thorax black or nearly black, with faint brassy 



reflection, punctuation of thorax weak, of elytra 



distinctly stronger, and sub-seriate at base. 



<V. Elytral punctuation more remote and stronger. 



Size larger L. suturalis, Marsh. 



p. Elytral punctuation closer and weaker. Size 



smaller L. nasturtii, F. 



B. Thorax without any aeneous reflection. 



a. First joint of posterior tarsi clothed beneath with long 



thick pubescence ; posterior tibial spurs shorter and 

 thicker L. melanocephalus, de G. 



b. First joint of posterior tarsi clothed beneath with short 



thin pubescence ; posterior tibial spixrs longer and 

 thinner L. nu/rofasciatus, Goeze. 



L. suTURELLus, Duft. [Fauii. Austr. Ill, p. 262] ; Weise [Nat. Iiis. 

 Deutsclil. VI, p. 969]. 



Syns. melanocephalus, Foudr. [Mon. p. 163]. 



freminvillei, Guilleb. [L'Abeille, 1895, p. o89], teste Bedel. 

 thoracicus, All. [Mon. p. 107]. 



{Tlioracicvs, Stepli., is usually given as a synonym of this insect, 

 but the specimens so named in the Stephensian coll. are of a different 

 species, and the " thoracica " of the " Manual " does not quite corres- 

 pond with suturellus ; it is therefore perhaps better to drop the name 

 thoracicus, Steph., as a synonym of this or any other species). 



Short oval, very convex. Head always black. Antenna) : black with first 

 three joints testaceous red or brown. Thorax : varying in colour from black to 



