88 SILPHID.E. 



tributed in England (Joy). Dr. Joy has found two specimens in the 

 late Mr. Gurney's collection, now in my possession, but unfortunately 

 no locality is attached. 



Dr. Joy points out that in L. dubia the thorax is distinctly narrowed 

 before the base, the scutellum is much smaller than in L. dccvidiana, 

 ■Sind the first stria reaches the base of the elytra at some distance from 

 the scutellum. In the shape of the thorax L. davidiana resembles 

 L. scita and L. ovcdis, but the former has longer antennae, a smaller 

 scutellum, much less closely punctured strise and the third to fifth 

 strife strongly sinuate. L. ovalis is rather longer, with much longer 

 antenna?, the third stria of the elytra straight, and the interstices more 

 finely punctured.* 



L. algirica, Rye (Ent. Mo. Mag. xii. 1875, p. 151). A specimen 

 taken in a sandpit at Cumnor, near Oxford, by Messrs. Collins and 

 Donisthorpe, was named as above by Dr. A. Fleischer. It was unfor- 

 tunately a female, but may be known from small pale ccdcarata by the 

 more obsoletely-punctured thorax, of which the base is not sinuate, the 

 more slender club of the antennre, the apical joint not being noticeably 

 narrower than the penultimate, ifec. 



Introduced as British by Mr. Donisthorpe (Ent. Rec. xxiii. 1908,44), 

 Mr. Rye described the species from a male taken by Mr. Rippon in 

 Algiers. 



L. calcarata, ab. nigrescens, Fleischer (Wien. Ent. Zeit., 190G.) 

 Specimens, swept in Parkhurst Forest, Isle of Wight, in August 1910, by 

 Mr. Donisthorpe, have been named as above by Dr. Fleischer. 



L. curta, Fair., var. donisthorpei, Fleischer (Ent. Rec. xxiii. 

 1911, 43). Diliers from the type form in its smaller size and colour, but 

 chiefly in the striking short form, and rounding of the side-borders of the 

 thorax ; short oval, very arched ; head, thorax, and the club of the 

 antennfe black, the rest of the body red-brown ; not completely coloured 

 individuals yellow-brown ; antennae as short as in the type, the club 

 likewise very broad, the last joint hardly perceptibly nairowed ; the 

 thorax less contracted to the base than in the type, somewhat in the same 

 way as between the type of dubia and its variety ohesa ; head and thorax 

 as strongly punctured as in the type, but the elytra with the strite some- 

 what more strongly punctured, with still thicker rows of punctures ; the 

 interstices also more strongly punctured. The construction of the legs 

 in the male and female is the same as in the type ; the form of the male 

 organ is also identical. The similarly-shaped, short-arched, small forms 

 of dubia (ab. subglobosa, ab. hicolor), are easily separated through their 

 much thinner antennfe, the much finer sculpture of the thorax, and 

 much less close rows of punctures in the strife. Small females of this 

 race can be sepai-ated further from similarly coloured females of 

 calcarata^ ab. nigrescens, Fleischer, by the much shorter form, and broad 

 front tibia), as well as by the sculpture. L. -^-o^ mm. 



* In a paper published in the Ent. Mo. Mag. xlvii. (2 Ser. xxii.) 1911, 1(36, 

 Dr. Joy sinks this species as a variety of L. dubia. 



