Broun. — New Genera and Species of Coleopteru. 159 



visible. Scutellum with a pure-white speck at each side. Elytra tapering 

 towards the apices, which are not at all dehiscent ; on each there is a large 

 basal prominence, another, which is only slightly raised but elongate, is 

 situated near the hind thigli ; their punctation is moderately coarse and 

 close near the shoulders, more distant and subseriate along the middle, and 

 becomes obsolete behind. 



I have not seen H. wakefieldi, but haye no doubt that this species is 

 nearly allied ; it is, however, distinguishable by the rufescent femora, 

 greenish tibiae, and by the absence of large fulvous patches on the elytra. 

 No. 2265 should also be placed in this genus ; it is much smaller, and has 

 a frontal groove along the middle of the thorax and a continuous one on 

 the head. 



Length, 7 mm. ; breadth, 2| mm. 



Silverstream. One of Mr. A. O'Connor's captures ; evidently very rare. 



3352. Hybolasius tumidellus sp. nov. 



Subdepressed, rufo-piceous, legs and antennae pitchy red, apical half 

 of tibiae and the tarsi dark fuscous ; the clothing variegate, on the broadly 

 depressed antemedian area of the elytra it is mo:,tly yellow, quite greyish 

 behind, but more scanty and apparently darker between the hind thighs 

 without, however, forming a distinct fascia there ; on the head and thorax 

 the hairs are yellow, but much more slender than those on the wing-cases ; 

 the legs bear numerous outstanding white setae, the antennae a few darker 

 ones. 



Head short, minutely and closely granulate. Thorax a third broader 

 than long, the sides obtusely prominent behind the middle, between these 

 there is a pair of just-distinguishable discoidal swellings, its surface is finely 

 and closely punctate-granulose. Elytra evidently broader than thorax at 

 the base, 2J times it', length, very gradually and slightly narrowed back- 

 wards ; they are irregularly punctured, and have a pair of moderate basal 

 nodosities. 



Femora strongly clavate. Antennae elongate, basal joint thick, piceous, 

 2nd very small, 3rd and ith very elongate, each nearly twice the length of 

 the 5th, 6-11 gradually decrease in length. 



Small allied species are rather numerous and difficult to discriminate, 

 and are likely to become more so, as separate localities seem to produce 

 different species. A careful perusal of the first part of the diagnosis will 

 lead to the recognition of tliis species. 



Length, 4 mm. ; breadth, IJ mm. 



Silverstream. One example from Mr. H. Simmonds, its discoverer. 



3353. Hybolasius rugicollis sp. nov. 



Piceo-rufous, with a darker transverse space at a little distance behind 

 the posterior femora bu not forming a definite fascia, tarsi nigrescent ; 

 the pubescence grey, not thick, but conspicuous. 



Head with a very distinct mesial svdcus. Thorax transversely quadrate, 

 the outline only a little uneven, owing to the presence of a minutely granu- 

 lated nodosity at each side behind the middle ; it is closely and distinctly 

 transversely rugose at the base and apex, irregularly and very finely on 

 the middle, but granulose near the sides. Elytra distinctly punctured, 

 more closely at the base than on the middle, more distantly towards the 

 extremity, and without perceptible depressions or basal callosities. 



