COLEOPTERACARABIDAE OF THE JUAN FERNANDEZ ISLANDS 



633 



Fig. 



I. Trachysarus sericetts 

 Andrewes. x 7- 



one shallow, the slight median line short but 

 distinct, running between them, sometimes also 

 visible in front, basal foveae very shallow, with 

 a suggestion only of puncturation, surface other- 

 wise uneven, shiny. Elytra rather flat, elongate- 

 oval, nearly a half wider than prothorax, four 

 fifths longer than wide, shoulders narrow but 

 evident, no sinuation behind; striae with only 

 traces of crenulation, extremely fine and hardly 

 impressed, scarcely visible behind shoulders, a 

 scutellary striole just traceable between i and 2, 

 intervals flat, equal, 3 with a single pore behind 

 middle, surface smooth and a little dull. The 

 microsculpture of the elytra is formed by meshes 

 which on average are much longer than wide 

 and a little oblique; on the head and prothorax 

 meshes are just visible near the margins. Under- 

 side impunctate, tarsal joint 5 glabrous beneath. 



A little larger and flatter than T. pallipes Germain, head with flatter 

 eyes, practically as large as prothorax, which is wider in front, the sides less 

 sinuate behind, the front transverse impression much deeper, elytra much more 

 finely striate, sericeous, the meshes of the microsculpture oblique-elongate, 

 instead of transverse. 



Masafuera, 9 ex. c^$, found under wet stones at 500 m. above sea level, 

 February, 1917. 



Trachysarus punctiger sp. n. — Fig. 2. 



Length: 6 mm. Width: 2 mm. 



Piceous black, elytra faintly aenous, shiny; palpi, joints i and 2 of antennae, 

 apex of elytra, and legs more or less ferruginous. 



Head convex, smooth, the deep oblique 

 frontal foveae running on each side from the end 

 of the clypeal suture to the margin of eye, a 

 slight pore on vertex, eyes flat, antennae dilated 

 towards apex, extending well beyond base of 

 prothorax. Prothorax moderately convex, nearly 

 a third wider than head, a sixth wider than 

 long, widest just before middle, base and apex 

 about equally wide, sides very narrowly bordered, 

 gently rounded in front, straight behind, the pore 

 and seta well before middle, hind angles obtuse 

 and rounded; median line fine, transverse im- 

 pressions distant from margins, the front one 

 wide and deep, basal foveae small, but moderate- 

 ly deep, rather finely punctate, the punctures 



extending, though less closeh^ placed, both to ^. ^ , , .. 



, , ., .,,,,. ,., F'g- 2. Trachysarus punctiger 



lateral margms and middle, surface a little Andrewes x 9 



