301 



Limacodes ephippiatus Harr. mss. [PI. i, fig. 7; PI. ir, fig. lo.] 

 Received from the Rev. Thomas Hill; probably from Pennsylvania. Eats 

 grape vine and rose leaves, and Rihes aureum. Pea green above, head and 

 fii-st four segments, an oval spot on the top of the back on the sixth and 

 seventh segments, and another larger oval spot on the tenth and eleventh 

 segments, pm-jile brown. The green portion edged before, behind and be- 

 low with white. The brown, oval, dorsal spot encircled with a wlrte border. 

 A small white spot on the top of the fourth segment between the tubercles, 

 a smaller, round, white spot on the top of the tenth segment between the tu- 

 bercles; a large one each side of the dorsum of the eleventh segment, two 

 deep purplish red, velvet-like spots on the tail, and one similar one each side 

 of the twelfth segment, on the lateral line. Abdomen beneath flesh coloi'ed. 

 True legs six, very short ; prolegs none. Abdomen furrowed longitudinally 

 beneath, having thus two longitudinal, contractile ridges, which serve in pro- 

 gression instead of prolegs. Head reti-actile, entirely within the hood-like pro- 

 jection of the first segment, second segment with four small, hemispherical, 

 brownish tubercles, beset with short, Avhitish spines tipped with black, third 

 segment with four similar, spiniferous, larger tubercles, of which the dorsal 

 pair is the largest, fourth segment with two long, conical tubercles similarly 

 armed with longer, stinging spines. Each side of the fifth, sixth, seventh, 

 eighth, ninth, tenth and eleventh segments with a spherical, spinifei'ous tuber- 

 cle on the white lateral line above the spiracle; top of the tenth segment with 

 two long, conical, spiniferous, stinging tubercles, similar to those on the fourth 

 segment. Tail with four spherical, spiniferous tubercles, two above and two 

 below on the lower edge, smaller than the upper pair. The tubei'cular 

 spines of this very singular larva sting like those of Saturnia lo. The en- 

 tire and absolute want of prolegs is another anomaly in this insect. It is 

 known in Pennsylvania by the name of the devil's saddle-horse. 



One of these caterpillars languished, and on the 9th of Sept. was put 

 into spirit. One lived till Sept. 20, when a liost of Ichneumons issued from 

 its body, and made their silken cocoons on the outside. It was then put 

 into spirit. The moth belongs to the genus Strehlota Hiibn. 



[Seirodonta bilineata Gr. and Rob.] [PI. i, fig. 5.] 

 Probably a variety of the following. Inhabits elm. Sept. and Oct., 

 1837. On fences August 28, 1838, Sept. 9, 1841. 



Body green like the following, Avith a lateral white line approximating on 

 the fourth, third, second and first segi,nents and distant on the others; dorsal 

 line and tubercles as in the followinsr. On the sides of the sixth and ninth 

 segments a triangular, claret red spot. This caterpillar varies in having 

 also a semicircular red spot on the top of the fourth segment ; and sometimes 



