262 NEOTROPICAL PSELAPHIDAE 



13. Posterior coxae separated by appreciably more than half the median 



metastemal length, usually by as much as three-fourths this dis- 

 tance; sutural striae of elytra indistinct or rudimentary 14 



Posterior coxae separated by not more than half the median metaster- 

 nal length, usually by as little as one-third this distance; sutural 

 striae of elytra distinct and strongly formed BATRYBRAXIS 



14, Head slightly longer than wide through eyes; vertex convex, un- 



carinated with vertexal foveae not apparent; front very long, ogival 

 between antennal bases; each side of head with a narrow longi- 

 tudinal sulcus extending from antennal insertion posteriorly above 

 each eye; antennae simple, slender, much more than half as long 



as body; legs long and slender INIOCYPHUS 



Head much wider through eyes than long; vertex with a thick, short, 

 median longitudinal carina at base ; front sharply declivous beyond 

 inter-antennal line; each side of head with an obliquely mesio- 

 posteriad incisure and vertexal fovea ; antennae highly abnormal in 

 the male sex, not more than half of body length; legs normally 



inflated ; known only from nest of termites 



ANOPLOBRAXIS, new genus 



DALMODES (Reitter, 1882) 



Reitter (1882) 



Sharp (1887) 



Raffray (1896, 1904, 1908, 1908a, 1911, 1911a) 



As limited here, Dalmodes is a neotropical genus of tychines, the species 

 of which have the base of each elytron quadrifoveate with one exception, 

 gracilipes, in which the elytron base has three foveae; the flank of the elytron 

 has a longitudinal sulcus; the pronotum has a transverse subbasal sulcus but 

 no lateral longitudinal sulci; the posterior coxae are widely separated; the 

 abdomen has the first tergite narrowly but distinctly margined each side with 

 an external and an internal carina, the second and third tergites much less 

 sharply margined; six stemites in male and female, the sixth being relatively 

 large and more or less rounded at apical margin. 



This is a tentative restriction, placing several species in other genera. 

 Early descriptions are vague and types usually not available for study so 

 that the exact limits of the genus will remain unknown for some time to come. 

 Five species are considered as belonging in Dalmodes, but of these one may 

 be misplaced. 



Key to the Species 



Known only from Mexico rybaxoides 



Known only from Brazil 2 



2. Base of each elytron with three foveae gracilipes 



Base of each elytron with four foveae 3 



