1 903] DYAR:—GE OME TRIDAE 1 3 



Abdominal petiole usually longer than the hind coxae and smooth ; median 

 segment not areolated. ...... Anachares Dalman 



(Type Cynips eucharoides Dalm.) 

 4. Mesonotum with distinct parapsidal furrows. . Acothyreus Ashmead ^ 



(Type A. oceola Ashm.) 

 Mesonotum smooth, witJioiit parapsidal furrows. . . Synapsis Forster 



(Type S. agrisgranensis Forst.) 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE.— XXXIX. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Therina fisct'.llaria Guen. The larva has been much confused. It is appar- 

 ently this one referred to by Packard as T. fervidaria in Mon. Geom., p. 494, Rept. 

 U. S. dept. agric, 1886, p. 329, and 5th Rept. U. S. ent. comm., p. 186. In the lat- 

 ter publication the description of T. eiidropiaria on p. 187 is of this species, Riley's 

 specimen being before me. I have referred to these descriptions previously 

 (Psyche, vol. 9, 11, 1900), but have made there an error in regard to the food 

 plant of T. feniidaria (lines 6 to 8, second column) ; it is really spruce as Packard 

 gives it. The life history of T. fiscellaria^ here given, was obtained from moths 

 kindly sent by Mr. H. S. Williams of Rockledge, Florida, in May. The first larvae 

 were matured in August and the moths appeared again in September. 



Egg. Elliptical, the narrow diameter only slightly flattened in a small area on the mid- 

 dle of the side; truncation forming a decided rim, but eleyated centrally; depressed end 

 rounded, almost like the other end. Surface smooth, except for \ ery fine, roundedly hexago- 

 nal, moderately distinct reticulations, all oyer it, becoming a little larger at the antemicropy- 

 lar end. The minute pores at the angles show whitish in the shndoNy. Oliyaceous green, 

 shining, turning dull reddish. Size .9 X -6 X .5 mm. Hatched in two weeks. 



Stage I. Head rounded bilobed, erect, free, rather large, mouth pointed : dull dark 

 brown, darker in the sutures, lighter on the faces of the lobes, eyes black; width .3 mm. 

 Body cylindrical, normal, moderately elongated, feet normal slender, the abdominal ones 

 rather long ; segments slightly enlarged centrally. Grayish white, a shaded dark gray broad 

 dorsal band, narro^yed in the incisures and absent at the ends. A subgeminate, darker, 

 naiMower and more distinct subdorsal band, fainter at- the ends but continuous, narrowed and 

 confluent in the incisures. A similar subventral band, geminate, but segmentarily, macu- 



' In all cases I retain the original spelling of genera, Eucoila, not Eucocla, Acothyreus not A contothyreus etc. 



