124 INSECUTOR INSCITI^TJ MENSTRUUS 



3. Labrum medially near base with a thornlike projection, 



acanthochilus, new species 

 Labrum without such a thorn 4 



4. Joint 3 of antennaeas long as 4 + 5 ; punctures of front, clypeus, 



mesonctum, and mesopleurse separated, the interspaces shiny, 



ilUnoiensis Robt. 

 Joint o of antennae shorter than 4 + 5, mesonotum and mesopleurae 

 rugoso-punctate, punctures of clypeus and front, coarse, close, 



stevensi, new species 



5. Pleurae rugoso-punctate, with a lunule of white pubescence, 



heliopsis Robt. 



Pleur£e punctured, with a large patch of white pubescence, below 



this more finely punctured robertsoni Cwfd. 



MALES. 



1. Abdomen red 2 



Abdomen dark 4 



2. Sixth dorsal segment at apex medially with a triangular pygidium- 



like proj ection texanus, new species 



Sixth dorsal segment without such a projection 3 



3. Joint 3 of antennse as long as 4 -|- 5 ; labrum with hardly a trace 



of a median carina ilUnoiensis Robt. 



Joint 3 of antennae shorter than 4 + 5, labrum medially carinate 

 for two-thirds its length stevensi, new species 



4. Pleurae rugoso-punctate, with a white lunule ; truncation of basal 



segment of abdomen not sharply defined, laterally the punctures 



extending onto truncation heliopsis Robt. 



Pleurae punctured, with a large white patch, below this more finely 

 punctured ; truncation of basal segment sharply defined, subcari- 

 nate above ; laterally angulate, without punctures on truncation, 



robertsoni Cwfd. 

 Ncopasites eatnia Ckll., which I do not know, is omitted from the 

 above table. From its original description it does not appear to be 

 any of the new species described in this paper. 



Holcopasites illinoiensis (Robt.). 



Specimens in the collection of the American Entomological 

 Society from Robertson which are probably paratypes but are 

 not labeled as such, show the following characters: Third an- 

 tennal joint as long as 4 + 5 ; punctures on disk of mesonotum 

 near middle well separated, the interspaces shiny ; fifth ventral 

 segment quite deeply but narrowly emarginate. 



The specimens from the vicinity of Washington, D. C, 

 which Ashmead had under the manuscript name pratti agree 



