2 9 



NEW SPECIES AND VARIETIES OF BOMBYCES. 



1)\ P.. Nkimokckn AM) Harrison (',. Dnar. 



Ill advance of tin- rcvisionarv work whitli \vc arc |)rci:)ar- 

 iiitj on the families of Lepidoptera classed as the Honibyces, 

 we present the following' descriptions of new forms. We do so 

 to avoid as far as possible the production of s\nonyms. 



lamilv Lasiocampida. 



(ieiuis Hypopacha n. gen. 



Head ratlier small, sunken, eyes nakeil, palpi obscureti by vestiture, which is 

 hairy; antenna: modeiately bipectinate, sliorter in ^;\ thorax moderate, abdomen 

 s<iuare, hardly e.\c.edin<r hind wings. 



Primaries trigonate, 1.4 times as long as broad (less than i^.j times); costa 

 straight nearly to apex, outer margin long, convex, gently rounding to internal 

 angle. 



Secondaries ovate, the costa concave, exterior margin very convex. \'ena- 

 tion ; fore wings : vein l close to margin ; a sub-median fold ; median vein 

 4 branched, 2 given off near base ; 3 from median beyond middle of cell ; 4 

 and 5 together from lower angle ; cell closed by a weak concave vein ; 6-S on a 

 stalk from apex of cell ; q-io on a very long stalk from sub-costal just before end 

 of cell, the furcation almost at apex of wing; ir from sub-costal on cell about 

 half the length of cell from base ; 12 free. 



Hind wings ; two internal veins ; 4 branched median, 2 from near middle of 

 cell, 3 before end of cell, 4-5 on a stalk from lower angle of cell ; cell closed by 

 an angulated vein ; 7 from sub-costal before end of cell ; S from sub-costal about 

 ', ( length of cell from base ; a long spur from base of sub-costal into enlarge- 

 ment of costa at base. 



Type Cnethocampa grisea Xrin/i. 



This genus is closely related to tlic l^uropean l^ricluKra 

 cratu'i^i Linn., but differs from it in venation. Its nearest Ameri- 

 can ally is Artaci\ from which it differs in antennal structure. 



(ieniis Clisiocampa Curt. 

 C. disstria Uuhn. 



The typical form is of a yellowish brown color, with two 

 transverse brown bands on fore wings. 



7'ar. sylvatica Hair. 



This name may be retained for the form in which the pri- 

 maries are crossed by a deep brown band, filling up the space 

 between the transverse lines. 



