80 INDEX TO MISSOURI ENTOMOLOGICAL REPORTS. 



nally from first to last joint. Head and cervical shield darker than the rest of body, 

 slightly sliagreened, sparsely covered with long hairs, the shield quite large, convex, 

 and occupying the whole surface between stigmata there being iu frout of the latter 

 a sub-cervical dark horny plate. Joints 2 and 3 wrinkled as at Fig. 18, c the former 

 with two rather conspicuous dark dorsal piliferous spots. The other joints with a few 

 fine hairs, the stigmata plainly visible, and the anal covering but slightly horny. 

 Legs and prolegs of moderate size and of same color as body. 



Described from numerous specimens. 



Chrysalis Mahogouy-brown, with no striking character. Abdomen, especially 

 above, with very minute punctures. 



VARIETY NEBULELLA (Fig. 20, e). I have bred a single specimen from wild Crab 

 (Crata'uux) which differs in some essential features from the normal form, but which 

 nevertheless can only be considered a variety of it, as I observed no larval differences. 

 It differs in the more uniform and subdued tone of the front wings, the markings being 

 more suffused and indistinct ; but principally in the relative narrowness of the space 

 outside the transverse posterior line the greater consequent width of the middle area, 

 and smallness of the triangular brown spot the space it occupies on the, inner margin 

 being scarcely one-half as wide as that between it and the transverse posterior line. 

 The discal spots are also separated. 



Described from one good specimen. An interesting fact connected with this variety 

 is, that precisely the same form occurs in Europe, as I found a single specimen in the 

 c abinet of M. J. Liechtenstein of Moutpellier, France, which he had captured in that 

 vicinity, and which he allowed me to bring home for comparison. It seems to be rare, 

 even there, and whether indigenous or imported from this country, is a question yet to 

 be solved. [Fourth Rept., p. 41-42, Figs. 18,19,20. 



ACROBASIS JUGLANDIS, LeBaron. (Fig. 20, d) I have bred this species from Hick- 

 ory, but as Dr. LeBaron has also bred it abundantly from Walnut, and has signified 

 his intention of describing it in his second annual Report, I adopt his proposed name, 

 and shall content myself with pointing out the manner in which it may generally be 

 distinguished from nebula. Firstly, by the paler basal area of the front wings, which 

 is sometimes almost white, especially near the costa, and by the head and shoulders and 

 sometimes the <? antenual horn partaking of this paler col or. Secondly, by the darker 

 median space, the dark triangular costal spot not being well relieved posteriorly, but 

 extending so as sometimes to darken the whole space. Thirdly, by the discal spots 

 always being well separated. 



Such are its specific characters as taken from 3 hickory-bred and 6 walnut-bred speci- 

 mens ; but of the former there is 1 which when placed alongside of some of the more 

 abnormal specimens of nebula, can scarcely be distinguished from them, and, if chosen 

 without knowledge of its larva, would certainly be placed with them ; while of the 

 latter there are two which nearly as closely resemble the variety nebulella. In gene- 

 ral characters, in the size of the brown triangular spot, and the manner in which the 

 inner margin is divided, jiujlainl'is is intermediate ber \veeu nebulo and nebuh'lla. In one 

 of the hickory-bred specimens, the general color is quite warm, and the basal area 

 carueous rather than white. [Fourth Rept., p. 4:!. Fig. 20, a, I), d. 



Dr. LeBaron published his description of it about the same time, 

 under the name Phycita juglandis, in his Second Eeport on the Insects 

 of Illinois, p. 123. 



PEMPKLIA HAMMONDI, N. Sp. Imago (Fig. 21, d). Average expanse 0.48 inch 

 [=z 12 111111 ]. Front wings glossy purplish-brown with two silvery gray transverse bands 

 dividing the wing on costa in about three equal parts, the basal baud sharply defined 

 outwardly and always extending to inner margin, the posterior baud never extending 

 more than half way across the wing, and generally not more than one-third, illy de- 

 fined. In some specimens the basal transverse baud is quite narrow, with the basal 

 space a shade paler than the median : in others the band forms a double line. In some 



