80 Rev. T. A. Marshall's monograph of 



Terebra decurved, as long as half the abdomen. Length, 1— H ; 

 wings, 2 — 3 lin. 



The rufous head of the ? has the stenimaticum, and sometimes 

 the margin of the occiput, fuscous. Thorax and 1st abdominal 

 segment black. Maxillary palpi short, 1st joint hardly distinct, 

 2d longer than the 3d, 5th and 6th closely conjoined, together not 

 longer than the 4th, 6th conical, attenuated. Antenna; 20—23- 

 jointed, a little shorter than the body, filiform, the 1st joint rufous 

 beneath. Metathorax short, areated. Abdomen compressed, and 

 truncated at the apex ; segment 1 forming about i of its length, 

 regularly striolated; tubercles distinct ; sides of the condylus sub- 

 parallel. In the $ the antennae are longer than the body, the 

 abdomen ovate, and the colours darker. 



Distinguished from secalis by the labial palpi ; from 

 athiops by its more slender form, by the areated meta- 

 thorax, by_ the more strongly curved radius, by the 

 shorter radial areolet, and the decurved terebra. Very 

 like falciger $ (sp. 3), but in that species the 1st cubital 

 areolet is separated from the praediscoidal. 



Not uncommon throughout the country, although I 

 have no specimen. Billups has taken the ? at Peckham. 



8. Perilitus cetlriops, Nees. 

 Perilitus cethiops, Nees, Mon., i., 32, $ ; Hal., Ent. 



Mag., iii., 37, <? ? ; Schaff., F. G., clvi., f. 16. 

 Microctonus cethiops, Wesni., Nouv. Mem. Ac. Brux., 

 1835, p. 57, $ ? , pi. i. (wing) ; Euthe, Stett. 

 Zeit., 1856, p. 292, $ ? . 

 Labial palpi 2-jointed. $ black; legs often piceous ; femora at 

 the apex and tibiae at the base rufous ; or fore femora, or all the 

 femora, dull rufous, black at the base. ? black; face, mouth, 

 cheeks, orbits, and base of the antennae, dull rufous ; or head 

 entirely rufo-testaceous ; legs rufous, hind coxae black, tarsi fuscous. 

 "Wings whitish hyaline ; stigma, nervures, and squamulae fuscous ; 

 stigma narrower than that of secalis ; radial areolet semicordate, 

 ending a little nearer to the stigma than to the apex of the wing. 

 Length, 1 — II; wings, 2\ — 3^ lin. 



Var. $. One-half or one-third smaller; antenna? 24 — 25-jointed. 

 This may possibly bo the unknown £ of P. secalis. 



Antennae of the $ \ longer than the body, 27— 30-jointed. First 

 joint of the maxillary palpi short but distinct, 5th and 6th together 

 • longer than the 4th, 6th attenuated at the apex. Abdomen 

 ovate-lanceolate ; segment 1 much more slender than that of the J . 



