272 ENTOMOLOGICAL NEWS. [November, 



bands, edged with black stripes, located on mesothorax and metathorax 

 opposite to the bases of the wings. A yellow spot at base of second pair 

 of legs. Yellow spot on dorsum between fore-wings and twin spot be- 

 tween base of hind wings. 



Legs black, except bases of femora, which are brown. 



Abdomen brown at the base but gradually changeing to black toward 

 the apex. Gradually widening from 3 to 8, but not conspicuously dilated 

 as in C. maculatus. Yellow spots on the dorsum of 1-9, that on i a trans- 

 verse band, those on 2-8 sagittal, the points caudad. The spots on 2 

 and 3 extending the whole length of the dorsum, the others basal and 

 gradually shortening. The one on 8 broader and with a blunt point. The 

 spot on 9 quadrangular, brighter yellow, nearly half the length of the seg- 

 ment. The tenth segment entirely black. Dorsum of abdomen covered 

 with black granules which show conspicuously on the dorsal spots. There 

 is a little yellow on the sides of segments 1-3 near the ventral suture, and 

 the auricles are pale. No other markings on the sides of the segments. 

 There is a twin yellow spot on the base of venter of 8 and sometimes 

 lighter ventral areas on 8-9. 



Appendages black ; the superiors about the length of 10, divergent, 

 trigonal, a basal tooth beneath, the terminal fourth abruptly narrowing to 

 the acute apex, appearing obliquely truncate. Inferior appendages quad- 

 rangular, tuberculate above at the outer angles, slightly emarginate at the 

 apex, thickened at the end, in side view appearing obovate. 



9 Total length 78 mm., abdomen 60 mm., hind wing 52 mm., alar ex- 

 panse 108. Occiput as in the male excepting a narrow, better-defined 

 dark line running from the sides on the crest which bears a black tubercle. 

 Frons dark brown excepting a yellow patch on the back. Post-clypeus 

 yellow, ante-clypeus dark brown. Labrum yellow, bordered in front 

 with dark brown, a pale brown line extending from the base half way 

 down the middle. Cheeks yellow ; mouth parts brown, excepting the 

 ends of the mandibles which are black. Back of head as in the male. 

 Thorax as in the male. 



Abdomen darker toward the posterior end, not dilated behind but about 

 the same width from the fourth segment to the end. Yellow dorsal spots 

 on segments 1-8 much like those on the male. The suture between 8 

 and 9 bears seven narrow, brown longitudinal bands, one on the dorsum 

 and three on each side. Dorsum of 9 black, but the sloping places on 

 each side pale brown Dorsum of 10 and the upper surface of the appen- 

 dages paler. Sides of 1-3 bordering the ventral suture yellowish-brown. 

 A brown twin spot on the ventral base of 8. Black granules on abdomen 

 as in the male. Appendages brown, as long as 10. 



Described from about tvi^enty males and two females taken 

 from June 8th to July 15th, at Orono in open woods, and over 

 a brook in Bradley by F. L. Harvey. None were in coitu, but 

 the female taken in the woods was with a male which was 



