[March 1S91. 



PSYCHE. 



49 



posterior to the others; two within, and 

 three without each of the large spines borne 

 on the posterior segment. Caudal spines 

 straight or curved, black-tipped. Wing-pads 

 covering the posterior femora below. An- 

 tennae curving around the femora of the two 

 anterior pairs of legs and then extending 

 inwards towards the ventral middle line. 

 Length .22 — .25 inch. 



Fig. 3. Imago, enlarged. 

 Imago. — Pale green, or greenish yellow, 

 marked with black. Head and mouth-parts 

 black, the former showing a brownish cast 

 medially on ventral side. Three basal arti- 

 cles of each antenna pale, sometimes with 

 dusky dots on posterior side; remainder of 

 antennae black. Prothorax uniformly green 

 or yellow. Elytra green or yellow, with 

 twelve large black spots, six on each, ar- 

 ranged in three cross series; the first series 

 at the base, the second at about the middle, 

 and the third midway between the second 

 and the tips of the elytra. Scutellum brown 

 or black. Mesothorax beneath, the coxae, 

 the basal third to half of femora, and the 

 abdomen, yellow or green. Metathorax 

 beneath, the distal portion of the femora, 

 and the whole of the tibiae and tarsi, black. 



Head with a basal pit behind antennae. 

 Prothorax above smooth and shining, obso- 

 letely punctulate, with a pair of pits, one on 

 each side of the middle line. Margin of 

 prothorax sinuate at sides, no prominent 

 angles. Elytra minutely, regularly punctu- 



late, each elytron with a humeral promi- 

 nence. Antennae, metathorax beneath, ab- 

 domen, and legs, clothed with a fine silken 

 pubescence. 



Length .25 — .28 inch; antennae about .19 

 inch. 



For the p ur P ose of making this 

 record more nearly complete I may be 

 allowed in conclusion to call attention 

 to the most recent notice of D. 12- 

 punctata known to me, printed in a 

 recent number of Insect life (v. 3, 

 150). The writer, Mr. Webster, here 

 gives a brief description of the larva 

 which agrees in the main with that 

 given above. In several points, how- 

 ever, we do not agree. I presume the 

 statement that the posterior segment of 

 the body is provided with a pair of 

 prolegs is a slip of the pen ; certainly 

 there is only one of these in both D. 

 longicoriiis and D. 12-p/tnctata. The 

 statement also that the brown phite on 

 the hindmost segment is furnished with 

 a ridge "bearing a long erect bristle" 

 cannot be verified on the larvae collected 

 in this State, and I respectfully suggest 

 in explanation that in examples nearly 

 grown some of the hairs on the plate 

 are frequently worn or hroken off. The 

 hairs are constant in position and num- 

 ber in the examples I have studied, and 

 none have been seen with a single erect 

 hair arising from the ridge, if these 

 differences in the descriptions are not 

 thus to be explained away, then I sub- 

 mit that we have examined different 

 larvae, and am content to leave to others 

 the decision as to who has described the 

 larva of D. 12-puuctata. 



