926 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



PLATE XXII. 



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

 head, with the antennae {ant) -, «', pro- 

 thoracic stigma; «, one of the abdom- 

 inal stigmata. 



2. Xylotrechus colonug : Jat., side view of head 



and 6 succeeding segments. 

 2a. Xylotrechus colonug, mouth parts : letter- 

 ing as in other figures. 



3. Xylotrechus colonug ?, under bark of black 



birch, Providence, May 20. 



4. Details of mouth-parts of Saperda larva 



from willow trunk, represented at 

 Plate XXI, Fig 4. 



5. Longicorn larva found under hemlock 



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

 C. Longicorn larva found under bark of hem- 

 lock, Bath, Me., July 30. Enlarged; md,o, 

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

 All the figures enlarged. GisslerdeJ. 



PLATE XXIIL 



Fig. 1. Unknown larva from log of sweet gum 

 tree, Houston, Tex. 



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



3. Xeetobium affine, mouth-parts of larva. 



4. Hylurgops pinifez, and mouth-parts. 



5. Pistodes strobi, larva (Q"" long) and mouth- 



parts. 



6. Pissodeggtr obi, ^npa,: /id, front of head and 



beak, with antennae ; ab, end of abdo- 

 men, with the fleshy lateral processes. 

 Gissler del. 



PLATE XXIV. 



Fig. 1. Xylotereg bivitlatu^, larva. 

 1». Xylotereg bivittatus, pupa. 



2. Xyleborug ccelatug, larva. 



2'>. Xyleborug ccelattig, mandible. 



3. Xyleborug ccelatug, pupa, dorsal view. 



3*. Xyleborug ccelatug, pupa, end of abdomen 

 much enlarged. 



4. Orypturgus atomug, larva. 



5. Orypturgus atomug, larva : md, mandible ; 



mx', labium. 

 5'. Orypturgus atomug, larva: md, mandible. 

 b\ Orypturgug atomus, maxilla. 

 5". Orypturgus atomug, pupa, end of body. 



6. Chalcid parasite of X. ccelatug or Orypt- 



urgug 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 

 lignivorous scolytid larvae. Maine. 



8. Pupa of longicorn larva, under bark of 



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

 end of abdomen seen from above. 



9. Hylurgopg pinifex, pupa. 



All the figures enlarged. Gissler del. 



PLATE XXV. 



Fig. 1. Selandria larva, common on Oaryaporeina, 

 with details of mouth-parts: leg, leg; 

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

 terior); lac, lacinia (=mrtZa 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; mx 

 and mx', maxilla and labium (the dotted 

 line ends on the maxillary lobe or 7nala) ; 

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

 lary palpus; cly, clypeus; Ibr, labrum; 

 I, fleshy lobe. 



3. Unknown larva, common under bark, prey- 



ing on destructive scolytid beetles. 



4. Unknown larva, yellowish, under bark; 



flmm in length; ab, end of abdomen. 



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



4mm. 



All the figures enlarged. Gissler del. 

 PLATE XXVI. 



Fig. 1. Nematug eriehsonii head of larva before 

 last molt, 

 la. Same, full-grown larva. 



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



la.c, lacinia ; palp, palpus. 



3. Same, underside ; mx, maxilla ; mxp, max- 



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

 palpus. 



4. Mandible of same. 



5. Ptercmahis 7iematicida Pack., parasitic on 



same. L. O. Howard, del. 



6. Nematus integer, head and thorax ; p«c, 



praescutum ; gc, scutum ; gel, scutellum. 

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



aominal segments ; ov, ovipositor ; c, 



cercopod. 

 66. Same, wing. 

 6e. Same, antenna. 



7. Oelechia abietigella, larva enlarged (natu- 



ral size indicated by hair line). 



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

 nal joints more highly magnified. 



7b. Same, terminal joints on same scale as last. 

 All the figures magnified. 

 (Packard— Gissler, del.) 



PLATE XXVII. 



Fig. 1. Pissodes strobi : a, larva ; 6, pupa seen 

 from beneath. 



2. Mines made by the larva ; 6, 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, R. 



I., deformed by this weevil. From a 

 photograph by A. A. Packard. 



PLATE XXVin. 



Fig. 1. KermessTp. G.Marx del. FromComstock. 

 2. Ohionagpig pinifolii. Marx del. From 

 Comstock. 



