COLYDIIDAE. 529 



Antennae shorter than thorax, finely setose, basal joint scarcely at all 

 visible above, second thick, subquadrate, third oblong and more slender, 

 evidently longer than fourth, joints 5-8 short, ninth slightly broader and 

 oblique ; club short and broad, a little dilated inwardly, both joints 

 transverse, the apical not quite as broad as the basal. 



Underside irregularly granulate, with some fine yellowish setae. 

 Prosternum carinate and bisulcate between the coxae. Metasternum with 

 a quadrate median depression behind. Epijjleurae broad and granulate. 

 Abdomen with deep sutures, segments 2-4 broadly impressed in the middle. 

 Terminal joint of maxillary paljji subovate. Eyes indistinct. 



In the type of the genus there is a smooth basal transverse groove on 

 the head, and the elytra are quite costate. F. costicollis is also smaller, with 

 the thorax bicostate. 



Length, 3^ mm. ; breadth, \\ mm. 



Hollyford. One, taken ofE a mossy tree on the night of the 20th 

 February, 1914, by Mr. T. Hall. 



4052. Vitiacus posticalis sp. nov. 



Subopaque, dark fuscous along the middle, the sides, legs, antennae, 

 and head somewhat rufescent, with a few fine flavescent setae. 



In appearance somewhat similar to F. suhcaecus, but rather larger and 

 with more prominent eyes ; these in most species, however, owing to their 

 coarse but not very convex facets, are not easily distinguishable from the 

 adjacent granular sculpture. 



Thorax with almost straight sides, curvedly narrowed towards the 

 obtusely prominent front angles, the posterior angles obtusely rectangular 

 but not projecting backwards ; disc impressed along the middle, with two 

 series of broad flattened granules behind, more irregularly and numerously 

 granulate in front, this part has costiform borders ; just outside these 

 costae, behind the middle, the granules are flat and indistinct, but on the 

 sides they are coarser and closer than in F. subcaecvs. Elytra just twice the 

 length of thorax, the base medially emarginate but straight towards the 

 obtusely rectangular shoulders ; their sides nearly straight and a little 

 explanate to beyond the hind thighs, but on each elytron, near the 

 extremity, a lateral swelling with finely granulate margins covers the lower 

 posterior portion of the true side ; the suture is sharply defined but becomes 

 thickened and slightly convex near the top of the declivity, and along 

 either side of it there is a single series of about twelve very distinct granules, 

 each series has a well-marked outer carina from the base nearly to the 

 declivity, and nearer the side, between the hind thigh and extremity, there 

 is a short costa ; the declivity is thickly bicostate, with singly rounded apices. 



Underside fuscous, metasternal impression large, abdomen almost 

 entirely without granulation. 



The thoracic and elytral costae, unmistakable granulation, and posterior 

 dilations are distinctive. The antennal club also differs, the terminal joint, 

 instead of being narrower than the basal, is quite as broad, and both are 

 evidently dilated inwardly ; the ninth joint is oblique at the base. 



Length, 3 J mm. ; breadth, Ih mm. 



Hollyford ; 20th February, 1914. One in Mr. Hall's collection. 



4053. Vitiacus purus sp. nov. 



Subopaque, fuscous, the head, antennae, and legs fusco-rufous ; with 

 a few fine pale setae. 



