240 REPORT OF THE COMMISSIONER OF AGRICULTURE. 



pearance was found the past winter in the leaves of the southern pine 

 ( 7^ australis) afc Macon, Ga., a point where, owing to a sudden fall 

 of some 400 feet in altitude, the northern and southern lioras meet in a 

 remarkable manner. Progressing southward, a careful search was made 

 for additional specimens of this leaf miner, but none wei'e fouiid except 

 in this one locality. Assuming the identity of the two forms (they have 

 since been bred and proved identical), it ]>uzzled us for some time to dis- 

 cover how the species could have reached P. australis^ since the southern- 

 most limit of P. inopsis South Carolina, and P. rigida is essentially nor- 

 thern. It was not until we discovered the same miner in leaves of the 

 yellow pine (P. mitis) that we were able to solve the problem. The yellow 

 pine is not only found north, but also extends south until at Macon, Ga., 

 we can see it mi«gling witli the nortJiernmost specimens of P. avMralis. 

 The following characterization of the species has been written for this 

 report by Mr. V. T. Chambers : 



Gklecxiia PiNiroiJELLA Chambers (n. sp.)- 



Palpi simple: liind wings excised beneath the tip. Head wliite, flecked with scales of 

 tlie general hue of the insect, which may be called a hrovrnish yellow, though it is 

 difficult to define its color in a word. Palpi white ; the second joint longer than the 

 tliird, hx'owuish j'cliow flecked with fuscous scales on yie outer side; thini joint A^hite 

 with a brownish yellow annulns about its middle, and another near the tip: antennae 

 white, each joint crossed bj'^ a brownish band. Thorax and fore wings of the general 

 hue above mentioned, flecked with ftiscous scales. On the fore v.-iugs are tliree white 

 fasciae, placed respectively at about tlie basal, middle, and apical fourths of the wing 

 length ; the apex is densely dusted with fuscous on a white ground, aud the dorsal 

 margin is sparsely flecked with brown. The fasciae also are more or less margined with 

 brown scales and the third one is sometimes interrupted in the middle ; and the fuscous 

 scales which margin the first and second fasciae (especially along the second, near the 

 fold) form minute tufts of raised scales. Cilia grayish, with iutersyjersed black scales, 

 which are tipped with white. Underside of the fore wings brownish. Hind winga 

 jiale grayish with white cilia; abdomen brown above, whitish toward the apex beneath. 

 AJ. exp. i inch. 



Received from Professor Comstock, who informs me that the larva mines the leaves 

 of a species of pine. 



Since the above description of G. pinifolieUa was prepared, I have receivecj. a letter 

 from Mr. Stainton, in which ho says that it "is unknown to me, though I imagine 

 from your account it must bear a sxiperlicial resemblance to Oecophora augiistella and 

 Oe. luctuorella." I cannot refer pinifolieUa to Oecophora, however. — V. T. C. 



To this description of the adult by Mr. Chambers, we here append a 

 description of the immature forms: 



Egg. — Seen from above appears globular with a diameter of .14"™; seen from the 

 Rid<', appears so compressed that its long diameter is nearly twice the length of the 

 short. Color reddish brown. Surface marked with delicate, close, meridional carinae, 

 meeting at the center abovij and below. 



Larva. — Length wh<ui full grown, 4.2""°; average width, .58""". Subcylindrical; all 

 Bcguicnta except head and anal segment nearly equal in diameter, the exceptions 

 smaller. Color yellowish brown ; liead, prothoracic, aiid anal plates dark brown ; 

 mouth parts yellowish; i)rothoracio shield strong, completely divided longitudinally 

 in the middle by a nioderatelj' wide suture. 



Pupu. — Length, 4.4'=='" ; average width, .71""". Head obtusely rounded ; wing sheaths 

 extending to 6th abdominal segment; aniennal sheaths reaching nearly to end of Aving 

 Bhe;iths, all compactly soldered. General form very nearly cylindrical; sixth and sev- 

 enth abdominal segments sjtreading ab posterior borders; dorsal side of anal segment 

 furnished v.'ith a cluster of froui 10 to 15 delicate tentacular or hook-form filaments. 

 Color: V/hen lirst ti'ansformed, light yellow-brown, soon changiDg to very dark 

 brown, almost black, on head, thorax, wioig, aud crural sheaths; abdomen of a lighter 

 brown, growing still lighter towards the anua. 



PARASITES. 



A minute chalcid of peculiar habits was bred in considerable numbers 



flY)Tn tli<> .'•-]MM'ir>c'-'s' f'MTf] nil 7*. rir!rj/i. FroDi >^ to 1'? <~>r fl:(' 1:ita';)0 «if 



