TYRINI 307 



Head as in armipes, with the occiput abruptly and vertically formed from 

 the occipital-cervical sulcus, the occipital crest carinoid; however, in contrast 

 to armipes, the front is distinctly narrowed anterior of the eyes and then ex- 

 panded to form a larger ant^nnal tubercle. 

 Maxillary palpi as for genus. 



Antennae short, thick, eleven-segmented; I elongate-cylindrical; II shorter, 

 slightly narrower, quadrate; III-VI subequal, very short and transverse; VII 

 transversely triangular with the internal or median face acute, wider than sixth ; 

 VIII slightly wider and longer than seventh, transversely trapezoidal; IX-XI 

 forming a club; ninth much larger than eighth, transverse, with median face 

 subacute; tenth subequal to ninth, regularly trapezoidal; eleventh very large, 

 truncate at base, asymmetrically narrowed at rounded apex, much wider than 

 tenth and as long as preceding four segments united. 



Pronotum transversely subglobose, one-third wider than long in contrast 

 to mulleri; a very large lateral fovea each side at basal fifth and a small, punc- 

 tiform median fovea at basal fourth. 



Each elytron with two circular basal foveae; an entire sutural stria from 

 inner fovea ; a broad triangular dorsal impression from outer fovea to basal third 

 of elytron, in contrast to armipes. 



Abdomen with five visible tergites in a length ratio of 3.5/2/.6/1.5/1.2. 

 From a dorsal view only the first two tergites can be entirely seen, and the first 

 appears, therefore, much larger than the rest of the abdomen. First with a 

 narrow but distinct margin, this marginal field being longitudinally triangular, 

 and the disc of the segment is medianly tumid and strongly depressed at each 

 latero-basal comer. Second tergite with a conspicuous transverse sulcus from 

 side to side at base; lateral margins carinoid. 



Six stemites in a length ratio of 1/2/1/.5/.2/.5, with the first deeply exca- 

 vated and densely pubescent, and the second very tumid. 



Intermediate coxae widely separated. Posterior coxae separated by no 

 greater distance than the intermediate coxal separation. Legs all simple, un- 

 armed, uninflated and not arcuate. Tibial spurs entirely absent in contrast to 

 the female armipes. Tarsi of the usual tyrine proportions, with two long, ar- 

 cuate, equal claws. 



Metasternum broadly medianly sulcate, with a tubercular swelling each 

 side. 



Described on one female, collected by C. H. Seevers on August 1, 1938, 

 from beneath bark, at Puerto Salgar, Cundinamarca, Colombia. 



The species of the genus may be listed as follows: 



armipes Raffray. 1891. Caracas, Venezuela, (both sexes known) 



clavicomis Raffray. 1891? Ceara, Brazil. 



colomhiensis new species. Puerto Salgar, Cundinamarca, Colombia. 



(female known only) 

 muZZen Reitter. 1882. Sao Paulo, Brazil. Genotype, (male known only) 



Taken at 2600 feet. 



