118 Mr. F. P. Pascoe on some new or little-knoiun 



pubescent, nearly as long as the bead and protborax togetber ; wings 

 deep steel-blue, sbiuing; abdomen black, slightly tinged with blue, 

 with a very remote greyish pubescence ; legs black, anterior coxae and 

 femora testaceous, the intermediate darker. Length 11 lines. 



DioPTOMA [Lampyridse]. 



Head exposed. Eyes very large, horizontally constricted, the upper 

 portion smallest, the lower much larger, and completely contiguous. 

 Antennae short, claviform, subapproximate, deeply set on each side of 

 the narrow prolongation of the front, twelve-jointed, the first two in- 

 crassated, the remainder forming an elongated club. Mandibles very 

 slender, curved, not toothed. Palpi robust. Protborax transverse, 

 semicircular, not dilated at the sides. ScuteUum rather large, tri- 

 angular. Elytra as broad as the protborax at the base, gradually rounded 

 at the sides, narrow and flattened posteriorly. Winged. Legs mode- 

 rate ; intermediate coxse not approximate ; tarsi slender, the fourth 

 joint not bilobed. 



Although I do not hesitate to refer this most extraordinary insect 

 to the Lampyridae, yet it must be confessed that it is a very aberrant 

 form, and suggests no affinity with any Malacoderm genus that I am 

 acquainted with. Its head (composed, at least externally, almost 

 entii-ely of eyes, which are constricted in the middle like an hour- 

 glass) is fully exposed; the narrow vertex descends behind the 

 upper portion of the eye, and fills in the space behind and between 

 the constriction, and is prolonged in front to terminate in the labrum, 

 although, fr'om the presence of numerous coarse haii's, the existence 

 of this organ cannot be positively asserted. The antennae are very 

 short, scarcely extending to the prothorax, and show no traces of 

 being serrated. I am indebted for the only specimen I have seen 

 to Dr. Ernest Adams, of University College, after whom I have 

 named it. The abdomen of the specimen ha^sdng been cut away, 

 apparently to facilitate (?) the mounting, the number of its segments 

 cannot be ascertained : the abdomen itself, however, appears to have 

 been very small ; the metastemum must have exceeded it in length 

 as well as in breadth. 



Diojptoma Adamsii. (PI. V. fig. 2.) 



D. fusca, parce pilosa; scutello elytrisque pallide grisescentibus, his 

 plaga elongata fusca humerali. 



Hah. India (Dacca). 



Dark brown, rather sparingly clothed with pale semi-erect hairs, 

 especially on the protborax ; bead coarsely punctm'ed, mandibles red- 

 dish-brown, antennte and palpi pale yellowish ; prothorax thickly and 



