32 PROCEEDINGS OF THE AMERICAN ACADEMY. 



joint. Hind tarsi considerably less than half as long as the tibia, the 

 first joint unusually prolonged below and as long as the rest together, 

 the second fully twice as long as the third and with it as long as the 

 fourth. Cerci moderately stout, regularly tapering, as long as the 

 pronotum. Ovipositor very short, not so long as the pronotura, rap- 

 idly tapering at base, beyond slender, the armature of the inner valves 

 consisting of moderately stout but rather prominent bluntly pointed 

 spines. 



Length of body, $ 15 mm., 9 19 mm.; antennae (est.), ^ 30+ 

 mm., 9 45+ mm.; pronotum, $ b.b mm., 9 6.5 mm.; fore femora, 

 $ 8 mm., 9 7.75 mm.; hind femora, $ 16.75 mm., 9 17.75 mm. ; 

 hind tibite, $ 19 mm., 9 18.5 mm.; ovipositor, 6 mm. 



2 $,2 9 . Matamoras, Tamaulipas, Mexico, L. B. Couch ; Ringgold 

 Barracks at the lower end of the Rio Grande, C. A. Schott ; Carrigo 

 Springs, Texas, A. Wadgymar, through L. Bruner. 



2. Ceuthophilus ensifer. 



Ceuthophilus ensifer Pack.!, Amer. Nat., xv. 882, pi. 7, figs. 4, 4ab 

 (1881); Id.!, Mem. Nat. Acad. Sc, iv. 71-72, 83, figs. 17, 17ab (1888) ; 

 Blatchl., Proc. Ind. Acad. Sc, 1892, 153 (1894). 



Body luteo-testaceous, heavily marked with blackish fuscous, which 

 broadly borders all the abdominal segments posteriorly and inferiorly, 

 as it does also (but more or less broken mediodorsally) the thoracic; 

 there are also two large subdorsal anterior blackish fuscous spots 

 on the meso- and raetanotum, and the pronotum has a large T-shaped 

 blackish median spot heavily mapped out with a basal expansion and 

 which is cut by a mediodorsal luteous line, bordered on either side 

 posteriorly by one, anteriorly by two luteous dots, transversely aligned ; 

 the inferior border is broadly margined with black, leaving in the 

 middle of either side a large irregular luteous blotch more or less 

 streaked with fuscous ; the legs are castaneous, the hind femora with 

 fuscous scalariform markings and apically broadly annulate with 

 fuscous ; the apical half of tibine and the tarsi pallid. The antennae 

 are about twice the length of the body and the legs long and slender. 

 The fore femora are not stouter than the middle femora, nearly twice 

 as long as the pronotura and somewhat more than half as long as the 

 hind femora, the inner carina with 3-4 spines of considerable size. 

 Middle femora with four spines on the front carina and on the hind 

 carina three besides a moderately long genicular spine. Hind femora 

 about as long as the body, somewhat less than twice as long as the 

 fore femora, slender, the apical third subequal, the inferior margin 



