926 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



PLATE XXn. 



Fig. 1. Melanophila : Ibr, labrum and front of 

 head, with the antennae (ant); «', pro- 

 thoracic stigma; *•, one of the abdom- 

 inal stigmata. 



2. Xylotrechug colonus : ia(., side view of head 



and 6 succeeding segments. 

 2a. Xylotrechug colonus, mouth parts : letter- 

 ing as in other figures. 



3. Xylotrechus colonus?, under bark of black 



birch, Providence, May 20. 



4. Details of mouth-parts of Saperda larva 



from willow trunk, represented at 

 Plate XXI, Fig i. 



5. Longicorn larva found under hemlock 



bark, The Glen, N. H., July 22. 



6. Longicorn lar\'a found under bark of hem- 



lock, Bath, Me., July 30. Enlarged ; 7nd,o, 

 outer; Tnd,i, inner side of the mandible. 

 All the figures enlarged. Gissler del. 



PLATE XXIIL 



Fig. 1. Unknown larva from log of sweet gum 

 tree, Houston, Tex. 



2. Pupa. Glen, N. H., July 22. 



3. Xestobium affine, mouth-parts of larva. 



4. Hylurgops pinifex, and mouth-parts. 



5. Pistodes slrobi, larva (9""" long) and mouth- 



parts. 



6. Pissodes strobi.ynpa,: Ad, front of head and 



beak, with antennae; ab, end of abdo- 

 men, with the fleshy lateral processes. 

 Gissler del. 



PLATE XXIV^. 



Fig. 1. Xyloteres bivittattie, larva. 

 I*. Xyloteres bivittatus, pupa. 



2. Xyleborus ccelatus, larva. 



2''. Xyleborus cmlatus, mandible. 



3. Xyleborus ccelatus, pupa, dorsal view. 



3'. Xyleborus ccelatus, pupa, end of abdomen 

 much enlarged. 



4. Orypturgus atomus, larva. 



5. Orypturgus atomus, larva : tnd, mandible; 



mx', labium. 

 5*. Orypturgus atomtis, larva: md, mandible. 

 S"". Orypturgus atomus, maxilla. 

 5°. Orypturgus atomus, pupa, end of body. 



6. Chalcid parasite of X. ccelatus or Orypt- 



urgus atomus, • w, wing; ant, antennae. 

 6». Chalcid parasite, larva, 2™" in length. 



7. Unknown larva, 4°"" in length, under 



bark of pine, probably preying on 

 lignivorons scolytid larvae. Maine. 



8. Pupa of longicorn larva, under bark of 



sycamore tree, Brooklyn, N. Y. : p, 

 end of abdomen seen from above. 



9. Hylurgops pinifex, pupa. 



All the figures enlarged. Gissler del. 



PLATE XXV. 



Fig. 1. SelandrialATVA, comiDon on Oaryaporoina, 

 with details of mouth-parts : leg, leg ; 

 mx, maxilla; gal, galea (=mala ex- 

 terior); lac, lacinia {=mala interior). 

 Other letters an heretofore. 



PLATE XXV— Continued. 



Fig. 2. Paleacrita vernata (before last molt), on 

 Oarya porcina and sometimes on oak, 

 May 25, June 20: n. s., larva of natural 

 size, bead downward; p', third leg; m.x 

 and mx', maxilla and labium (the dotted 

 line ends on the maxillary lobe or mala) ; 

 sp, spinneret at end of lingua ; p, maxil- 

 lary palpus; cly, clypeus; Ihr, labrum; 

 I, fleshy lobe. 



3. Unknown larva, common under bark, prey- 



ing on destructive scolytid beetles. 



4. Unknown larva, yellowish, under bark; 



gmm in length ; ab, end of abdomen. 



5. Carabid larva, under bark of pine ; length. 



All the figures enlarged. Gissler del. 

 PLATE XXVL 



Fig. 1. Nematus eriehsonii head of larva before 

 last molt, 

 la. Same, full-grown larva. 



2. Maxilla of same, from above; g, galea; 



lac, lacinia ; palp, palpus. 



3. Same, underside ; m,x, maxilla ; mxp, max- 



illary palpus, mx', labium ; mx'p, labial 

 palpus. 



4. Mandible of same. 



5. Ptercmalue nematicida Pack., parasitic on 



same. L. O. Howard, del. 



6. Nematus integer, head and thorax ; pec, 



praescutum ; sc, scutum ; scl, ecutellum. 

 6a. Same, ovipositor; 9, 10, 9th and 10th ab- 

 aominal segments ; ow, ovipositor ; c, 

 cercopod. 



66. Same, wing. 



6c. Same, antenna. 



7. Oelechia abietisella, larva enlarged (natu- 

 ral size indicated by hair line). 



7a. Same, head and thoracic, and first abdomi- 

 nal joints more highly magnified. 



Tb. Same, terminal joints on same scale as last. 

 All the figures magnified. 

 (Packard— Gissler, del.) 



PLATE XXVII. 



Fig. 1. Pitsodes strobi : a, larva ; &, pupa seen 

 from beneath. 



2. Mines made by the larva ; b, transforma- 



tion cells. 



3. "White-pine trees at Brunswick, Me., de- 



formed by killing the leading shoot 

 when young. 



4. A large white-pine tree at Brunswick, 



Me., supposed to have been deformed 

 by this weevil. Vose del. 



5. A white-pine tree in East Providence, K. 



I., deformed by this weevil. From a 

 photograph by A. A. Packard. 



PLATE XXVm. 



Fig. 1. Eermes s'p. G.Marx del. FromComstock. 

 2. Chionaspis pinifolii. Marx del. From 

 Comstock. 



