300 PROCEEDINGS OF THE ACADEMY OF []\Iarch, 



Echinopsalis brevibractea n. sp. 



Type: cJ^(immature) ;Motzorongo, Vera Cruz, ]Mexico. January, 1S92. 

 (H. Osborn.) [U. S. N. M.] 



This form apparently belongs to the genus Echinopsalis, though not 

 wholly agreeing with the generic diagnosis. Difference from the 

 generic characters is noticed in the longer third antenna! joint, the 

 subtruneate posterior margin of the pronotum, the shorter anal seg- 

 ment and in the longer, more attenuate forceps. No close relationship 

 exists with the only previously known species, E. guttata De Bor- 

 mans from Chontales, Nicaragua. 



Body of moderate length, considerably depressed; surface subscab- 

 rous, covered with short, stiff, mostly erect hairs. Head rather flat, 

 slightly narrower than posterior ^^ddth of tlie pronotmn, the posterior 

 margin subemarginate centrally; basal joint of the antennae inverted 

 conoid, shorter than the uniform cylindrical third joint, fourth and 

 succeeding joints (beyond eleventh missing) short and thick, bead-like, 

 broader than long. Pronotum subquadrate; anterior margin broadly 

 rounded, the angles not at all apparent; posterior margin subtruneate; 

 median sulcus well marked and extending the entire length of the 

 pronotum; lateral margins considerably raised. Tegmina and -^dngs 

 only partially developed, but in such condition the former almost equal 

 the pronotum in length. Anal segment moderately deep, over twice 

 as wide as long, very heavily hirsute. Subgenital plate broad, the 

 apex gently rounded. Forceps trigonal in section; rather elongate, 

 parallel and unseparatecl; the inner margins finely toothed, this being 

 stronger and more apparent basally; apical portion moderately 

 incurved, crossed. Femora rather robust, uncurved; tibiae moder- 

 ately slender, not equalling the femora in length. Tarsi moderately 

 compressed, the first and third joints about equal in length. 



General color wood-brown, the limbs being mottled with touches of 

 dirty-yellowish. 



Measurements. 



Total length (approximately), 9.5 mm. 



Length of pronotum, 2.5 " 



Width of pronotiun, 2.5 " 



Length of anal segment, 1.5 " 



Length of forceps,] 3.5 " 



Four specimens, all from the type locality, have been examined. 

 In one of these eighteen joints are present in the antennae, twentj'-two 

 being credited to E. guttata; this possibly being true of hrevibractca in 

 the unbroken antennae. 



