138 BULLETIN" 18 2, UNITED STATES NATIONAL MUSEUM 



of wliich it resembles. I collected at this locality as the guest of Dr. 

 H. E. Box, at that time entomologist of the Colonial Development 

 Fund, to whom I am indebted for many favors and to whom I 

 dedicate this species. 



XV. Genus INOPEPLUS Smith '» 



Diagnosis. — Body broad, strongly depressed, alate; head trans- 

 verse, abruptly declivous in front to the clypous; labrum one-third 

 as wide as head, truncate in front, without appendages; antennae 

 filiform, longer than head and pronotum, segments obconic, the first 

 large and somewhat geniculate; mandibles without teeth but more 

 or less bifid at tip; maxillary palpus filiform, second and tliird seg- 

 ments equal, fourth equal to second and third together; labium be- 

 yond submentum membranous, parts not distinguishable in my 

 specimens, palpi short, stout; submental sutures united, mentum 

 short but broad, rectangular; gular sutures obsolescent, converging 

 anteriorly to middle where they disappear, still separate; pronotum 

 transverse, narrowed behind, edges laterally interiupted by one or 

 two circummarginal ridges; prosternum short, coxae posterior, small, 

 globose, cavities separated by a broad process of the sternum, widely 

 open behind; elytra longer than the mesosterna and metasterna, 

 smooth; middle coxal cavities separated by a broad process of the 

 mesosternum; posterior coxae distinctly separated, broadly expanded 

 under the femora; abdominal segments apparently with paratergites 

 but these not upturned to form a margin, connate with tergites and 

 sternites; sternites of first and second segments not present; femora 

 and tibiae not dentate or strongly spinose except at tip of latter; 

 tarsi 5-segmente(l, fifth tarsomere as long as the four preceding 

 together. 



Remarks. — This genus will run in most keys to Lisjmvus (or 

 Ancaeus) but is much more like Eleusis in appearance. It differs 

 widely from EUusis., however, in important structural features and 

 apparently is not related to it at all closely. 



Because of the structure of the prosternum, which has a process 

 between the coxae, this genus should be placed near Lis'jnnvs. From 

 that genus it is distinguished by its unique flattened appearance, the 

 depression between the vertex and the clypeus, the long antennae, the 

 transverse pronotum with its circummarginal pockets, and numerous 

 other details. Because of these features I believe that this genus 

 must be made the basis for a separate subtribe, which should come 

 between the Lispini and the Caloceri. 



I have seen 14 specimens belonging to 4 new species. 



"° See p. 024 for supploniental discussion of this genus. 



