CERAMBYCHXE 303 



twice as wide as long, the lateral tooth very large, triangular and medial, 

 the two dorsal tubercles strong, the median carina acute, wanting in 

 basal half; punctures coarse, well separated; elytra triangular, Avith 

 broadly rounded sides, three-fifths longer than wide, the apices sinuato- 

 truncate, the outer angle acute but not much produced; inner elevated 

 line evident medially, flexed outward and feeble though tuberculose 

 basally, the outer line obsolete. Length (9 ) n.o mm.; width 4.4 mm. 

 Honduras. 



It is rather singular that no Central American species seems to 

 have been recorded by Bates, which can be said to be especially 

 allied to histrio. It bears a very close general resemblance to 

 guadrigibbus but has very much larger lateral thoracic teeth, which 

 are not at all flexed forward at apex, as is related by Bates of 

 sylvanus. 



The following is allied in general appearance: 



*Psapharochrus guatemalensis n. sp. Form stouter than in the 

 preceding but almost identical in color and ornamentation; head similar 

 in color and sculpture; antennae similarly banded, piceous in color; 

 prothorax shorter and broader, the lateral tooth similar, large and tri- 

 angular, but not quite so large as in histrio, the dorsal tubercles strongly 

 elevated, simple; medial carina less acute than in histrio but becoming 

 obsolete only very near the base; punctures coarse and well separated; 

 elytra similar but broader and more rounded at the sides, the oblique 

 fascia longer, otherwise similar, except that the outer of the two dorsal 

 lines is also evident medially; legs nearly similar, except that the tarsi 

 are very much stouter. Length (9 ) 13.8 mm.; width 6.0 mm. Guate- 

 mala (Villa Nueva, near the city). 



If I am correct in considering the type of each of the above 

 species as female, as would appear from the long and rather pointed 

 fifth ventral, which is nearly similar in each, they are undoubtedly 

 distinct; though so strikingly similar in ornamentation and sculp- 

 ture, the differences in the tarsi are rather remarkable. 



In this genus the second antennal joint becomes more elongate 

 than in the preceding sections of the Lamiinae. 



Tribe ACANTHOCININI. 

 Lagochirus Erichs. 



Lagocheirus Lac. 



This is a large genus in the warmer regions of North and South 

 America and the species are of very broad form, somewhat as in 

 Psapharochrus, but more depressed and with the elytra usually less 



