RUMICIA. 329 



an infrastigmatal row of smaller, but still pretty large, papillae, one in the centre of 

 the 1st to 8th abdominal segments, and immediately behind them a minute, 

 supplementary, posterior wart. Legs not very long, but moderately slender, tbe 

 last joint tapering, the claw pretty stout, not greatly curved. Prolegs nearly 

 sessile, the circle of booklets very large, forming a circle or oval, open interiorly, 

 nearly as long as the segment and containing ten very minute, but not very slender, 

 moderately curving claws, separated from each other by a space more than equal to 

 their thickness. 



Larva (mature). — Head small, smooth, well rounded, broadest just below the 

 summit, no broader than high, very slightly full on the sides at the broadest point 

 and at the ocellar field, deepest in the middle, but scarcely narrowing above, the 

 front broadly rounded on a lateral view, the triangle large, scarcely higher than 

 broad, but reaching two-thirds way up the front, the sutures a little impressed ; a 

 few hairs on the triangle, labrum and lower part of the head. Antennae long, the 

 basal joint prominent, longer than broad, modetately stout, tapering; the second 

 cylindrical, as large as the apex of the first, but only a little more than half as long 

 as broad ; the tbird as broad as the second, increasing a little in size at the apex, 

 nearly twice as long as broad, the fourth minute, conical, sharply pointed. Ocelli 

 six in number, four of which are placed close together, the lower two a little more 

 separated tban the others, in a strong curve, the arc of a small circle, its convexity 

 forward, "whose centre is occupied by the fifth ocellus ; the sixth is placed below 

 the others, a little outside of the extension of a line connecting the lower two of 

 the curve, and as far from the lowest as that is from its neighbour ; the central 

 ocellus and the middle one of the anterior five are the largest, the lowermost the 

 next, and the otbers equal. Labrum large, broad, longitudinally rugose, its front 

 border very broadly rounded and but little excised. Mandibles slender, not broad, 

 their edge oblique, very deeply dentate, the teeth being long and very slender, 

 tapering, sharply pointed, rather distinct, five or six in number, and the space 

 between adjoining ones roundly, deeply, excised. Maxillary palpi with the joints about 

 equal in length, growing successively smaller, cylindrical, the terminal conical; inner 

 palp resembling the terminal joints of the outer but smaller ; spinneret conical, 

 short, rather slender. Body regularly, equally, and considerably arched from one 

 extremity to the other ; the separate segments also rather prominently arched, 

 especially in the middle of the body, and therefore quite distinct ; viewed from 

 above elliptical, the front end rounded a little more bluntly than the hinder extremity, 

 scarcely tapering posteriorly. Dorsal field scarcely, if at all, depressed, but strongly 

 arched and elevated on a cross section. Body very delicately and closely shagreened, 

 covered with numerous, irregularly scattered, equal hairs, arising from nearly 

 imperceptible warts ; the hairs short, scarcely tapering, bluntly pointed, frequently 

 and minutely, though coarsely, spiculiferous, the raised points scarcely directed 

 towards the tip of the hair, but almost perpendicular to the surface of origin. 

 Spiracles small, obovate, more than half as long again as broad. Legs short but 

 rather stout, tapering rapidly, furnished on the inner side with bristles, the last 

 joint rather slender and appressed, the claw rather long, compressed, heeled, 

 moderately slender, curved a little, supported on either side by a long bristle. 

 Prolegs very short and plump, furnished at the tip with a couple of short pads, 

 each supplied with twelve to fourteen hooklets, arranged in a double row, so that 

 all those of one proleg form an open crescent ; the hooklets are long, moderately 

 stout, tapering on the apical half, bluntly pointed, not strongly curved, distant 

 from one another by fully twice the diameter of one of tbem. 



Pupa. — Very little more than twice as long as broad ; the sides of the body 

 from one extremity of the wing to the other straight, or with a barely perceptible 

 hollowing next the division line between thorax and abdomen, very slightly 

 divergent posteriorly, so that the body is broadest at the 4th abdominal segment ; 

 here it is somewhat angulated, the posterior end tapering at once and forming an 

 elliptical curve, the tip well rounded. In front of the wings the body tapers 

 rapidly, and has a rounded, scarcely appressed front, the basal wing prominence 

 being marked only by the angle the front part of the body makes with the wings. 

 Viewed from the side, the flat bottom is uniform throughout ; the posterior third 

 of the thorax is very nearly equal, but slopes forwards a very little, its hindmost 

 extremity a very little, the most elevated, roundly angulated in the middle of the 

 posterior two-thirds, and sloping in front of it downward and forward about equally, 

 scarcely curved. Abdomen very broadly arched above, highest, and a very little 

 higher than the thorax at the 3rd abdominal segment, beyond the 4th abdominal 

 segment with a pretty strong, downward curve, the lower edge of the 8th abdominal 



