nriLKTix of rin-: Brooklyn e\t. sog. 93. 



nearer to each other. 



Eyes four on each side. 



Antennae fourjointed, longer than the mandibles, first joint short, con- 

 ical, second much longer, club-shaped; third three fourths of the length 

 of the second, about the same shape, fourth joint one half the length of 

 the second, thickest near the middle, at the tip there is a small prolonga- 

 tion seemingly a fifth joint, surrounded by a few bristles. 



Mandibles simple, elongate, arcuate. 



Maxillae moderately long, cardinal piece long with sides parallel, 

 maxillar palpus with first joint very short and thick, second more than 

 twice as long than the first, and slightly clavate; third the same shape, 

 but shorter and slender than the second; fourth nearly like the third, but 

 a very little shorter. Lobe with basal joint short and very thick, second 

 joint more than twice as long as the basal joint and slender. 



Mentum triangular, broadest at base with the Ligula which is con- 

 stricted at the middle, truncate at tip, covered with pulvilli, upon it is at 

 the middle a long and acute tooth and the labial palpi with the basal joint 

 long and clavate and the second nearly two thirds as long as the basal, but 

 more slender and terminating rather acutely at tip. 



Prothorax slightly broader than long, and narrower than the head, 

 at apex narrower than at base, sides slightly arcuate, hind angles acutely 

 rounded; antebasal and median impressed lines. 



Meso- and Mela-thorax transverse, shorter and broader than prothorax. 



Abdomen with the joints gradually decreasing in width, the last near- 

 ly tubular with very remarkable tergal appendages, consisting of two white 

 oval, bladder-like processses, set at the outer sides and at the apex with fine 

 hairs,* and the usual ventral tubular prolongation. 



Spiracles as in maculosus (see Bull. I. p. 42.) nine at each side. 



One larva found July 1 7 in a rotten log, died Aug. 2 1 ; another found 

 Sep. 6, under a stone, pupated Sep. 15, died Sep. 24; a third one found 

 under a stone Aug. 5, pupated Sep. 3; became black and shrunk Sep. 16, 

 but developed Sep. 1 9. 



In the plate of No. 10. B 17/7. andV VIII. means mandibles and C 17//. also ley. 

 Also real vol. III. p. 26, line 20: -''lite front qflaticollis has five teeth" instead of 

 "the labrum qfloticoUis has five teeth." 



* Seeing first these queer anal appendages I took them for the effect of a dis- 

 ease, as they look nearly like the cocoons of some Hymenoptera on the skin of 

 caterpillars. 



