742 Journal of Agricultural Research voi.xx.No.io 



posteriorly, somewhat impressed medianly, about two and one-half times as wide as the 

 cephalo-caudad length; postocellar line distinctly shorter than the ocellocular line; 

 antennae robust, normally 19- jointed but varying from 18- to 21-jointed, apical joints 

 a little more than twice as wide as long, joints 3 and 4 subequal, the basal rami more 

 slender than the apical ones; pedicellum much w r ider than long; head dulled, with 

 scattered shallow punctures; mesonotum shining, with separate distinct punctures, 

 anteriorly the punctures closer; scutellum with somewhat larger punctures; mesepis- 

 ternum punctato-reticulate ; first parapteron depressed anteriorly and ventrally omit- 

 ting the depressed area the outline forming an equilateral triangle; tergites, except 

 the ventral aspect, polished, impunctate; last sternite broadly, arcuately emarginate; 

 pad-like apical ventral portion of the sheath a little over four times as long as wide and 

 fitting close to the median ridge of sheath; venation normal. Head, prothorax, and 

 mesothorax rufo-ferruginous; mesosternum blackish to ferruginous; greater part of the 

 mesepisternum sometimes pale ferruginous; metathorax and abdomen black, ventral 

 aspect of tergites whitish, nates and sheath rufo-ferruginous, venter black or in part 

 ferruginous. Legs ferruginous, part of femora and bases of coxae blackish; bases of 

 tibiae and basitarsi whitish; occasionally the tibiae are all whitish. Wings vitreous, 

 subhyaline; venation dark brown. Antennae black. 



male (pl. 88, b) 



Length 5 to 6.5 mm. Labrum polished, the apical margin rather broadly rounded, 

 clypeus with the apical margin very gently arcuately emarginate, not depressed, the 

 surface sparsely punctured; lateral foveae practically wanting, other foveas as in 

 female; ocellar basin represented by a glabrous impression; postocellar area well- 

 defined , subconvex, not impressed , postocellar furrow arcuate ; postocellar line slightly 

 shorter than ocellocular line; head with large punctures, those on the front closer, 

 those on the vertex and occiput more widely separated; antennae 19-jointed; mesono- 

 tum with small separate punctures, those of the scutellum rather larger; mesepimeron 

 punctato-reticulate; hypopygidium broadly rounded apically, exceeding the geni- 

 talia. Black; labrum pallid; apices of mandibles piceous; legs below trochanters 

 and middle of venter reddish yellow. Wings hyaline, iridescent; venation pale 

 brown. 



EGG 



Egg 0.25 mm. long by 0.5 mm. broad; envelope very thin, whitish, smooth, shining, 

 translucent, and oval in outline. 



LARVA (SIXTH INSTAR) 1 



The following description is prepared from apparently full-grown 

 larvae from alcohol, approximating 21 mm. in length (Pl. 89, A). 



1 In the description of sawfly larvae, both structurally and for color, it is necessary that particular areas 

 and regions of a segment or body wall be designated and that the designations adopted be applicable to 

 both the thorax and abdomen of the larva in all its stages. Further, the method, or system, should permit 

 by addition, elimination, change in shape, armature, and spotting of folds, areas, or regions, the comparison 

 with other larvae, and at the same time should avoid possible confusion of meaning. The following is a 

 suggestion for such a terminology and is the one used in the succeeding pages. 



An intermediate (second to eighth, inclusive) abdominal segment of Neodiprion leccmtei (Pl. 91, B, E) 

 consists of tergum, pleurum, and sternum and begins with the transverse tergal fold immediately pre- 

 ceding that above the spiracle. 



The tergum is composed of six transverse folds which are considered as representing four primary divisions 

 (A, B, C, D), with one, the third, twice subdivided (C'» 2 > 3 ). 



The pleurum is divided into three folds — the dorsal anterior one here called the preepipleurite, the poste- 

 rior one called the postepipleurite, and a ventral one called the hypopleurite — and two areas, one containing 

 the spiracle and the other, armed with a few spines, posterior to and adjoining that containing the spiracle. 

 The area containing the spiracle is at the lower extremity of fold B immediately above the preepipleurite 



