286 Mr. G. Lewis on 



Oblong, rather depressed, piceous, shining ; the head very 

 finely punctulate, abruptly declivous anteriorly ; the thorax, 

 sides impressed, especially behind the anterior angles, mar- 

 ginal stria very fine, shortened before the base and continued 

 round the anterior angle, behind the neck there is a fine 

 detached stria, not quite close to the edge (this stria appears 

 to be an appendage to the lateral stria), the lateral stria is also 

 fine, commencing at the base a little within the angle and 

 passes obliquely inwards for about three fourths of the thoracic 

 length, on the inside of this stria is another very fine and 

 very short stria, slightly bent ; the elytra, striae, outer humeral 

 is shortened apically after passing the middle, inner humeral 

 is complete, both are very fine, dorsal 1 complete, 2-4 are 

 shortened apically, 4 is rather longer than the third, 3 longer 

 than the second, 5 rudimentary or more usually wanting, 

 sutural is geminate and resembles those figured for H. latipes, 

 Bohem. (Mars. Mon. 1861, fig. 1) ; the pygidia are finely 

 and evenly punctulate ; the presternum, keel bistriate, stria? 

 divergent anteriorly, less divergent at the base, anterior lobe 

 has a fine marginal stria and a transverse stria marks the 

 suture between the lobe and the keel ; the mesosternum is 

 biemarginate, the marginal stria is fine and complete, but it 

 is only near the edge behind the emarginations, at the sides 

 it joins the lateral metasternal stria ; the legs are similar to 

 those of H. latipes, Bohem. 



MarseuFs figure of H. latipes suggests the idea that the 

 elytral stria? are costate, whereas they are very fine, and it is 

 evident that Marseul mistook the inner part of the sutural 

 stria, which is geminate or double, for the fifth stria. In 

 some of my specimens of H. remex the fifth stria is repre- 

 sented by a rudiment midway between the sutural and fourth 

 stria. Both species are similar to each other, especially in 

 the form of the mesosternum and legs. 



IJab. Paraguay. I have eleven examples, taken by Dr. J. 

 Bohls on the 5th Oct., 1892. " The beetles were running 

 about on the mounds made by termites, some were in 

 copula and were fairly numerous. Afterwards Dr. Bohls 

 searched several hundreds of termite-mounds, but failed to find 

 other examples either on their surfaces or in the interiors." 

 JSotoccclis satur occurred at the same time. 



Terapus muricatus, sp. n. (PI. X. fig. 12.) 



Oblongus, cinereo-iriger, undique muricatus ; froute concava ; pro- 

 uoto antico ad angulos explanato ; elytris leviter costatis ; pygidio 

 in medio conspicue muricato. 



L. 4 mill. 



