AMERICAN ENTOMOLOGY. 73 



Reduvius raptatorius nobis, Journ. Acad. Nat. Sci. vol. iv. p. 327. 



Desc. Body oblong, obscure brownish; head with a deeply 

 impressed line above the eyes, spinous ; six larger spines before 

 the impressed line, placed two and two, and two or four larger 

 ones behind the line : stemmata sanguineous ; eyes inserted in 

 the lateral middle of the head : antennae inserted near the tip of 

 the clypeus, with dilated annulations of dull rufous and pale ; 

 rostellum slightly arcuated, pale : thorax with numerous, short, 

 obtuse spines on the anterior lobe, and dense granulations on the 

 posterior lobe : posterior angles hardly prominent ; feet somewhat 

 pale, sub-annulate, granulated : anterior pair raptatory ; thighs 

 unequal, anterior pair robust, villous, dusky, armed with an erect, 

 prominent, obtuse spine, near the tip above, and a double series 

 of ten equal, equidistant, acute spines beneath ; anterior tibiae 

 with a double series of six similar spines on the inner side; ter- 

 gum rufous on the disk, margin varied with black and pale ; 

 hemelytra on the membranaceous tip, with a longitudinal red- 

 dish-brown line. 



Obs. This may possibly prove to be the R. diadema Fabr. 

 It is common in many parts of the Union, and I found it not un- 

 common in Missouri, as well as in Pennsylvania. 



The upper left figure of the plate. 



TREMEX. Plate XXXII. 



Generic Character. Antennse setaceous, inserted on the front, 

 thirteen or fourteen jointed; mandibles robust, short, denti- 

 culated; labial palpi terminated by a thick, hairy joint; supe- 

 rior wings with two radial cellules, the second incomplete, and 

 two cubital cellules, of which the first is very large, receiving 

 the two recurrent nervures, the second incomplete, not attain- 

 ing the end of the wing ; abdomen sessile, terminating in a point ; 

 oviduct exserted. 



Obs. This genus is very similar to Sirex, from which it was 

 separated by Jurine. It may be distinguished by the smaller 

 number of joints in the antennae, as well as by the number and 

 form of the cellules of the wings. 



Tremex sericeus. — Specific character. Ferruginous : ter- 

 gum yellowish-sericeous. 



Tremex sericeus nobis, Western Quarterly Reporter vol. ii. p. 73. 



