COMPLIMENTS OF WILLIAM PROCTER BAR HARBOR. MAINE CD OS '~? 9' BIOLOGICAL SURVEY OP THE MOUNT DESERT REGION Conducted by WILLIAM PROCTER PART I THE INSECT FAUNA with reference to the Flora and Other Biological Features By CHARLES WILLISON JOHNSON Curator of Insects and Mollusls, Boston Society of Natural History From the MOUNT DESERT ISLAND BIOLOGICAL LABORATORY Mount Desert Island, Maine Published by THE WISTAE INSTITUTE OF ANATOMY AND BIOLOGY Philadelphia 1927 Copyright by WILLIAM PROCTER 1927 PREFACE The Mount Desert Region named in these publications is the territory of the island of Mount Desert, Maine, and its immediate surroundings in the extreme northeastern part of the United States. In this area of approximately 100 square miles is found a combination of sea and mountains with accompanying bays, rivers, brooks, lakes, swamps, valleys, and flats that is not found in any other place on the globe. In the center is the island whose mountains rise from the sea to a level of over a thousand feet. Between mountain peaks numerous lakes are found; some at a considerable elevation, while others are lower. Approaching the sea level, swamps or 'heaths' are formed, where the water is fresh from the land drainage above or salt from the sea's penetration. Outside is the open ocean, while between it and the island are smaller islands forming a sheltered thoroughfare and the harbors of Seal, North East, South West, and Manset, and from there the fjord called Somes Sound penetrates toward the center of the island for some miles. On the east the open w^aters of Frenchman Bay are checked in their sweep by smaller islands which, with Mount Desert Island, enclose a large stretch of water between them and the mainland to the north and on which Bar Harbor is located. This bay is quite distinct biologically from the waters to the south. Into the bay flow several rivers. Some are real rivers drain- ing adjacent terrain, while others are tortuous channels from the sea extending many miles inland with a swift current moving one way or the other, due to the shifting tides which rise and fall normally about ten feet. On the mainland 3 4 PREFACE toward the north are brooks and lakes varying in accordance with their method of formation. Still farther to the west and beyond the Narrows is the Western Bay. Fed by several large brooks and the Union River, the life here is in many ways quite different from that in Frenchman Bay. Believing that a region possessing such a variety of en- vironmental conditions in a limited area while situated on the northern line of the transitional zone of the Austral and the southern line of the Boreal region should offer an excep- tional opportunity for biological research, I have, after care- ful reconnaisance, undertaken this survey. The results, which will be published as the work progresses, I hope will be of scientific value and interest. The desire back of this work, however, is to set forth the forms which occur in sufficient abundance as to be available for experi- mental biological research together with enough data to enable investigators to determine when and where the ma- terials may be found. For the purpose of furthering research in marine biology in this locality, the Mount Desert Island Biological Labora- tory is situated on the Island at Salisbury Cove. The head- quarters of the survey are at present at this station. William Peoctee. Bar Harbor, Maine, U.S.A. January, 1927. f^ I ., ,^ \ ,^ ■h "^ ' ^^^ ^ '■^^Bb^^^^ .^^I ► CHARLES HENRY FERNALD It gives those engaged in the biological survey of Mount Desert great pleasure to dedicate this volume to the mem- ory of Charles Henry Fernald A PATRIOT, ZOOLOGIST, aud TEACHER Born at Southwest Harbor, Maine, March 16, 1839 Died at Amherst, Massachusetts, February 22, 1921 A true son of the Maine coast, Professor Fernald went to sea at the age of fifteen, spending six years on vessels engaged in West Indian and coast trade. He then entered the Wes- leyan Seminary to prepare for college, but on the opening of the Civil War enlisted in the Navy where he served three years, retiring with the rank of Ensign. Continuing his stud- ies at every opportunity, he was able at the close of his serv- ice to enter Bowdoin College. In 1871, Professor Fernald became the first professor of natural history at the Maine State College, now the University of Maine. While there he studied at the Museum of Comparative Zoology, Cambridge, Massachusetts, and under Louis Agassiz on Penikese Island. After fifteen years of service in the Maine State College, he resigned to accept the position of Professor of Zoology and Entomology in the Massachusetts Agricultural College, retir- ing in 1910. THE INSECT FAUNA OF MOUNT DESERT, MAINE INTRODUCTION The study of the insect fauna of a given section, aside from its purely entomological importance, has great economic value in showing the relative distribution of the injurious species and their parasites. It also presents many biological features of general interest bearing on distribution, variation, the relation of insects to the flora, and other environmental conditions. The value of such a study is often greatly enhanced by being made in a region so favorably situated as to show- clearly many of the factors governing distribution. In this respect there are probably few places that equal Mount Desert. Situated on the southern edge of the area defined as the Canadian life zone or the most southern extension of the Boreal region and the most northern extension of the so-called Transitional zone of the Austral region, it forms a meeting- ground of the northern and southern species. As I am endeavoring in this paper to show as far as it is possible the relation of insects to the flora, I will first consider what the botanists say regarding plant distribution.^ "One of the most marked characteristics of the island flora is its not only strongly northern, but arctic character. On its coast, enveloped in cold fogs and washed by waters chilled by the arctic currents, it is no wonder that arctic plants like Montia fontana and Stellaria humifusa should find a congenial home. Moreover this character of the flora is shown by the fact that with one exception, Lycopodium selago, the mountain plants descend to the sea level. Neither on the one hand is the alti- tude of the mountain summits sufficient to develop an alpine ^"A preliminary catalogue of the plants growing on Mount Desert," by Ed- ward L. Eand and John H. Redfield, p. 20, Cambridge, 1894. 10 BIOLOGICAL SURVEY OF flora nor on the other hand is the warmth and general char- acter of the lowlands sufficient to bring many of the plants of the middle temperate region thus far up the coast of Maine. The flora then may be said to be essentially Cana- dian, having close relations with the very similar flora of New Brunswick. It also shows, apart from its maritime char- acter, many points of resemblance to the general flora of the White Mountain region. It is in its special problems how- ever, that plant distribution becomes of great interest at Mount Desert." Prof. M. L. Fernald,^ in referring to the diversity of the island flora, says: ''The flora of the Mount Desert region is not by any means entirely arctic or subarctic. There we find essentially all of the common plants of the Canadian zone and mingling with them in sheltered nooks and meadows or on warm slopes, many scores of plants which reach their extreme northern or northeastern limit on Mount Desert or the immediate coast — such plants as the Pitch Pine, Piniis rigida; the Bear Oak, Quercus ilicifolia; the Sweet Pepper- bush, Clethra alnifolia; the Swamp Loosestrife, Decodon ver- ticillatus; the Meadow Beauty, Rhexia virginica, and the maple-leaved Viburnum, Viburnum acerifolium. This extraor- dinary accumulation within one small area of the typical plants of the arctic realm, of the Canadian zone and in many cases of the southern coastal plain, cannot be duplicated at any point known to the writer." Mount Desert is — "An island full of hills and dells, All rumpled and uneven With green recesses, sudden swells, And odorous valleys driven So deep and straight, that always there The wind is cradled to soft air. ' ' This diversity and the temperature of the Island are aptly pointed out by Mr. Barrington Moore, "* editor of Ecology, who says: ''From the forestry point of view I can state that '"An Acadian plant sanctuary." Sieur de Monts Publication, vol. 5, p. 6. '"Scientific aspects of Mt. Desert Island." The Maine Naturalist, vol. 1, p. 100, 1921. THE MOUNT DESERT EEGION 11 on no area of this size have I seen growing together forests representing such ditferent conditions and consequently with such different requirements. The vegetation in general ap- pears to be even more remarkable than the forests. Rand has found on the Island 230 species of plants common to the arctic. The crowberry (Empetrum mgrum) grows here at sea level, while inland at this latitude and even further north it is found only on the summits of the high mountains above timber line under truly arctic alpine conditions, and still the southern sweet fern {Myrica asplenifolia) grows here in actual contact with these boreal plants. ''An indication of the comparative mildness of the Mt. Desert climate in spite of its arctic flora, is to be found in a group of Japanese pines growing at one of the gateways north of the village of Bar Harbor, a tree so sensitive to cold that it is killed at the latitude of New York, which yet has lived on this island for twenty years without protection in Avinter. ' ' In the remarks by Rand and Redfield on the plant distribu- tion you will notice that an exception is made of the maritime flora, otherwise there is a "resemblance to the general flora of the White Mountain region." This is, to a large degree, equally true of the insects. The same trees and plants of the two places have the same insect enemies, and these insects in turn serve as hosts for the same parasites. The elevations of the island are not sufficient for the arctic-alpine forms of Mount Washington and the boreal species are more com- monly found near the shores and in the vicinity of the lakes, cold spring runs, and bogs, the more sheltered and southern exposures probably harboring the greater number of austral species. In regard to the distribution of aquatic insects, as pointed out by Dr. R. H. Howe, Jr.,^ cold bogs and ponds that are spring fed have less extremes in temperature than ponds that are not thus supplied with water. Thus he found boreal and * ' ' The distribution of New England Odonata. ' ' Proe. Boston Soc. Nat. Hist., vol. 36, p. 110, 1921. 12 BIOLOGICAL SURVEY OF austral dragon flies living together in the same pond far be- yond their normal limits of distribution. The pond in ques- tion had a bottom temperature of 51°F. in summer and 36°F. in winter — a range of only 15°. The distribution of most of the maritime insects is gov- erned comparatively little by the corresponding vegetation, although the two frequently show a similar distribution. Temperature and a suitable environment are the principal factors. A low muddy shore with considerable marsh and pools of brackish water has an insect fauna of its own, and it is these species that often show a very wide distribution. To the proximity of the ocean with its modifying effect on the climate is apparently due this extension of southern spe- cies far beyond their normal habitat. On the other hand, cold currents produce conditions favorable to boreal species. The effect of the ocean on temperature is perhaps best shown at Sable Island.^ '^A study of the temperature will show that there are no extremes of heat or cold on the island ; that the highest temperature during the past four years was 78° and the lowest point reached by the thermometer during the same period was 5° above zero." With these evident and interesting features bearing on the zoogeography of the island before us, a special study has been made each year of the halophilous insects frequenting the salt marshes at the Narrows near the bridge. The number of southern species that have been collected there is surprising. Their abundance would also indicate that this is by no means the northeastern limit of distribution of liiany of the species and that a wide overlapping of northern and southern forms occurs on this part of the coast. The abundance of the parasite wasps — Ichneumonidae — and the parasitic flies — Tachinidae — indicates a normal or balanced condition, these insects keeping in check the injuri- ous species. The lady-beetles, lace wings, and syrphid flies, the great enemies of the plant-lice, are also abundant and °" Sable Island with a catalogue of its vascular plants," by Harold St. John, Proc. Boston Soc. Nat. Hist., vol. 36, p. 52, 1921. THE MOUNT DESEET REGION 13 largely instrumental in keeping these prolific and destructive insects within bounds. Another factor of importance relative to a careful survey of the insect fauna of a region is the having on record the species to be found there at a certain time, so that, in the future, changes which we know are slowly but certainly affect- ing insect life can be tabulated and the causes which have brought about an increase or diminution of certain species may be better understood. The many introduced trees and plants have been and may continue to be a factor toward further insect distribution. Already there have occurred among plants of economic importance such insects as the Colorado potato beetle, the lunate onion fly and the narcissus fly on bulbs, the European cabbage butterfly, etc. The bro\vn- tail moth, abundant from 1909-1915, when Bar Harbor spent over $2500.00 in keeping it in check, has now apparently dis- appeared, at least I have seen but one moth (July 16, 1923) since starting my work in 1918. The gypsy moth is reported on the island, although not yet abundant. The danger from introduced species cannot be overestimated, and prompt action should be taken to destroy them, otherwise — "A big invading army Tliey make the earth their own. ' ' Introduced without their parasites and other natural enemies, the only immediate recourse is in spraying with arsenical preparations, with the result that many of our native species disappear, the balance of nature is disturbed and the diver- sity and beauty of our insect fauna are gone. The rich insect fauna of Mount Desert shows that we are still dealing in places with an almost undisturbed ecological condition, which we trust may continue to survive in the many sequestered parts of the island. Prior to the work of preparing this list there had been practically no special entomological work done on the island. A number of butterflies obtained by various collectors visit- ing Mount Desert are mentioned in Scudder's great work.^ ""Butterflies of eastern United States and Canada," by Samuel H. Scudder, 3 volumes, 1959 pages, and 89 plates, 1889. 14 BIOLOGICAL SURVEY OF A paper on the tiger beetles '^ seems to be the only paper published pertaining especially to insects found on the island. The late Prof. H. C. Fernald and his son Dr. H. T. Fernald have collected many insects on the island. These are now in the collection of the Massachusetts Agricultural College, Amherst, Massachusetts, and have been studied in connection with this list. The summers of 1909 to 1911 were spent by the late Dr. Charles Sedgwick Minot at Northeast Harbor. In his younger days Dr. Minot was greatly interested in the study of Lepidoptera, and here he renewed his first love for nature by making a large and exceedingly valuable collection of insects, mostly of moths which he captured at lights. Sev- eral of the insects were new to science and others very rare, some of the moths not having been collected since Packard recorded them in his monograph of the Geometridae in 1876. In all, over 280 species of Lepidoptera with many other in- sects were collected by him. These are in the collection of the Boston Society of Natural History. In connection with its work on the New England fauna, the Boston Society of Natural History in 1918 selected the island of Mount Desert as a place for a part of its summer work, this location presenting favorable conditions for a study of insects in relation to life zones. July 10th to 18th was spent by me at Southwest Harbor, the field work being confined to the woods south of Manset, ''Great Heath," the southern portions of Echo Lake and Long Pond (Great Pond) and the southern slope of Western Mountain. In 1919, my work from July 17th to 31st was confined to the vicinity of Bar Harbor, collecting at the Nurseries, at the foot of Picket Mountain, Sieur de Monts Spring, Duck Brook, Witch Hole Pond, Green Mountain, and for one day (July 27th), on the salt marsh at the Narrows near the bridge. From August 10 to 19, 1920, the above localities near Bar Harbor were again visited, with one day (August 13th) spent at the Narrows in company with Mr. Barrington Moore. ' ' ' Cicindelidae of Mt. Desert, Maine, ' ' by Edw. Doubleday Harris, Journal N. Y. Entom. Soc, vol. 9, p. 29, 1901, THE MOUNT DESERT REGION 15 August 20th to 24tli was spent at Southwest Harbor, collect- ing at Long Pond and the woods south of Manset. Au- gust 23rd was spent with Mr. and Mrs. Moore in making a special study of a small bog near Tremont. In 1921, the work of collecting was begun much earlier, with excellent results. June 7th to 16th was spent at Bar Harbor, collecting at the places mentioned above, with the exception of Green Mountain. June 9th was spent at the Narrows and Salisbury Cove, and June 10th at Jordan and Upper Hadlock Ponds in company with Mr. Benjamin Hadley. From June 17th to 23rd the work of collecting was continued at Southwest Harbor, in the woods south of Manset, Echo Lake, and Long Pond. Mr. S. N. F. Sanford also collected at Salisbury Cove and other parts of the island in July and again in August, adding a number of species to the list. In 1922, work was again started in June. From the 16th to 23rd the localities mentioned in the vicinity of Bar Harbor were again visited, but rainy and foggy weather interfered considerably. June 24th to 29th was spent at Southwest Harbor, collecting again at the places mentioned above. Through the kindness of Mr. Barrington Moore, June 26th was spent in collecting at the Narrows, at the outlet of Long Pond, and on Mount Robinson, examining the bear or scrub oaks — Qiiercits ilicifoUa — on which were found the characteristic galls of this oak, CaUirhytis tuberosa and C. operator. A collecting trip was also made this year in September for autumnal species. September 6th was spent in the woods below Manset, Southwest Harbor; September 7th, at Echo Lake and Long Pond; September 8tli, at Seal Brook and Break Neck Pond through the kindness of Mr. Hallock; Sep- tember 9th and 10th, at Bar Harbor ; September 11th at Duck Pond; September 12th, at the Narrows through the kindness of Mr. Benjamin Hadley, and September 13th, at Newport Cove (Sand Beach), Great Head, in company with Mr. Bar- rington Moore. libra: 16 BIOLOGICAL SURVEY OF In 1923, collecting was done in July. The lOtli was spent at Bar Harbor; the 11th at Newport Cove, Great Head, in company with Mr. H. B. Peirson. July 12th to 18th was spent at the Mount Desert Biological Laboratory, Salisbury Cove; the 15th, in company with Mr. C. E. Olsen, and the 17th, at the Narrows through the kindness of Mr. Frank J. Myers. July 19th and 20th was spent at Manset, Southwest Harbor. The island was not visited in 1924, but in July, 1925, I again continued my work. The 22nd to 25th was spent at Salisbury Cove, collecting on the "Heath" and "Meadow" south of the town and as far west as the mouth of Northeast Creek. The 26th to 29th was spent at Manset. From August 6 to 12, 1926, work was again confined to the vicinity of Salisbury Cove. From August 26 to Septem- ber 12, 1926, Dr. and Mrs. C. P. Alexander, of Amherst, Mas- sachusetts, visited the island, stopping at Southwest Harbor. Their collecting was confined largely to the southern end of Echo Lake, Beach, and Western Mountains. They were very successful and added many species to the list, especially in the Tipulidae. Through the kindness of Mr. Dwight Blaney, I have exam- ined a collection of insects he has made on Ironbound Island. A few of these, not yet found on Mount Desert (but which undoubtedly will be) have been added to the list. In making a collection from any given area, about one-half of these species are found quite common, some are always rare, while with others their time of appearing is limited or they are local and can only be obtained by collecting at" all' seasons and in all parts of the area for a number of years. Another feature in the study of insects that should be considered is that practically all determinations have to be made from the adult or winged stage, and that each of these pass through at least three other well-marked stages — egg, larva, and pupa — while the larvae and nymphs of many, in each of their several molts, often vary greatly in appearance. Thus, while there are probably 5000 species on the island of Mount Desert, these would be represented by over 30,000 quite distinct THE MOUNT DESERT REGION 17 forms. The habits of a species are given when known, but with the larger number of species the life-history is not known. The following list of species shows one feature that might seem to some misleading and that is the large number of Diptera in comparison with some of the other orders. The reason for this is that the writer, being a dipterist, has been able to determine the greater part of the species collected. The Hymenoptera would probably prove as numerous if all of the species could be determined. The number of species here recorded seems quite large for an island of this size (about 100 square miles) and shows how favorable the varied conditions are for insect life. The number of species actually existing on the island is somewhat problematical, but a cout servative estimate would be about 5000. In the material col- lected are still several hundred unnamed species, largely among the smaller hymenopterous parasites, many of w^hich have not yet been studied or even named. Each day in the field for years to come would add something new to the list. "So away! for the hunt iu the fern -scented woods Till the going down of the sun; There is plenty of game still left in the woods For the hunter who has no gun. ' ' Sam Walter Toss. SUMMAEY The number of species and varieties recorded in each order : Orthoptcra : Crickets, grasshop- ; Homoptera: Cicadas, leaf hoppers, pers, locusts, etc 28 aphids, etc 121 Plecoptera: Stone flies 12 j Mecoptera: Scorpion flies 3 Ephemerida: Dayflies or May flies 5 Trichoptera. • Caddice Siies 31 Odonata : Dragon flies 46 Lepidoptera : Butterflies and moths 521 Megaloptera : Dobsons, etc 3 j Strepsiptera : Twisted winged in- Neuroptera: Aphis lions (lace- sects 2 wings), ant lions 17 | Coleoptera: Beetles and weevils. . 469 Corrodentia: Psocids, book lice. . . 19 Hymenoptera: Sawflies, wasps, Mallophaga : Bird lice 93 bees, etc 692 Tliysanoptera: Thrips 1 Siphonaptera: Fleas 1 Hemiptera: True bugs 123 Diptera: Flies, mosquitoes, etc.. 1197 3384 18 BIOLOGICAL SURVEY OF The above numbers are based on species and varieties actually taken on the island, with the exception of the Mal- lophaga and two species of bird flies (Hippoboscidae). To acquire actual records of these would necessitate the shoot- ing of a large number of birds, the loss of which would not compensate for the little knowledge gained. As over 80 per cent of the birds are infested by these parasites, a list of the species frequenting the more common birds of the island can be depended upon to represent the approximate number of species. Many groups like the Aphidae, Coccidae, and the host of little parasitic Hymenoptera, especially the Chalcidoidea, re- quiring special collecting and the work of specialists, have not been studied. The Diptera, which have been more thor- oughly studied than the other large orders, show to what extent even Lower Austral species thrive in practically boreal conditions. This applies, as I have already stated, more par- ticularly to the maritime or halophilous species. The fol- lowing species are all found in the salt marshes from Florida to Mount Desert, and the range of some extends to Nova Scotia: Aedes sollicitans, Tabanus nigrovittatus, CJirysops fuliginosa, Odontomyia cincta, Chaetopsis aenea, C. apicalis, Tetramerix unica, Phyllogaster cor dylur aides, Notiphila hi- spinosa, Napaea imitans, and Dimecaena spinosa. Hoplo- dictya setosa is found from Georgia to Mount Desert, while many species common to the Upper Austral are also abundant here. Bittacomorphella jonesii, described from Lake Toxo- way. North Carolina, at an elevation of 3000 feet, is here found at practically sea level — a distribution quite common to many boreal species. In the Hymenoptera the large number of Psammocharidae and Sphecidae give the fauna quite an austral aspect. Vigorous flying moths like Aellopos titans, etc., that are often carried by strong currents of air far beyond their natural habitat, cannot be considered in de- fining life zones. On the other hand, widely dispersed species circumpolar in distribution are useful in defining the south- ern limits of the boreal. To those especially interested in distribution the list will show many noteworthy examples. THE MOUNT DESERT REGION" 19 ACKNOWLEDGMENTS j In preparing this list I am under great obligations to a i number of specialists for their generous assistance in deter- ; mining material. Through the kindness of Dr. L. 0. Howard, Messrs. S. A. Rohwer, R. A. Cushman, A. B. Gahan, and ; C. F. W. Muesebeck named many of the sawflies and parasitic i Hymenoptera. The ants were determined by Dr. W. M. \ Wheeler; the Chrysididae, by Dr. L. H. Taylor; the ■ Eumenidae, by Dr. J, Bequaert; the Sphecidae, by Dr. H. T. J Fernald; some of the bees, by Mr. H. L. Viereck; the j Megachile, by Mr. T. B. Mitchell, and the Psammocharidae j and many of the Neuropteroids, by Mr. Nathan Banks. In the Diptera I have had the assistance of Dr. C. P. Alex- \ ander on the Tipulidae ; Dr. J. M. Aldrich, on the Tachinidae j and Sarocophagidae; Mr. M. C. Van Duzee, on the Dolichopo- ] didae; Prof. C. T. Brues, on the Phoridae; Mr. J. R. Malloch, j on the Anthomyiinae, and Mr. E. T. Cresson, Jr., on the \ Ephydridae. Messrs. H. C. Fall and C. A. Frost have deter- | mined a number of Coleoptera; Mr. A. P. Morse, a number j of Orthoptera; Prof. Herbert Osborn, a number of Homop- j tera ; Dr. H. M. Parshley and Dr. H. B. Hungerford, a number j of Hemiptera, and Dr. R. H. Howe, Jr., a number of Odonata. j Mr. P. J. Chapman has revised the list of Psocidae, and j Mr. H. S. Peters, the Mallophaga. ' To the Journal of Economic Entomology I am indebted j for the picture of Prof. H. C. Fernald. I j Charles W. Johnson. I Order ORTHOPTERA Blattidae. Cockroaches Nyctibora Burmeister N. LAEVIGATA Burm. ? Market, S. W. Harbor (Mrs. Palmer). A West Indian species, probably introduced on bananas. Tettigoniidae. Long-horned grasshoppers SCUDDERIA Stal S. FURCATA Brun. Forked-tailed katydid. N. E. Harbor (Minot) ; Bee Hive Mt. (Sanford) ; Witch Hole Pond, Aug. 13-Sept. 11. S. PiSTiLLATA Brun. Meadow near Salisbury Cove, Aug, 17. CoNOCEPHALUS Thunberg C. FAsciATus De G. Slender meadow grasshopper. S. W. Harbor, Sept. 6. C. BREviPENNis Scud. Short-wiugcd meadow grasshopper. Narrows, Aug. 12. Ceuthophilus Scudder C. MACULATus Harr. Spotted cave-cricket. Bar Harbor; Salisbury Cove ; Sargent Mt., Aug. 2-Sept. 11. Orchelimum Serville 0. GLADIATOR Bruii. Mcadow grasshopper. Meadow south of Salisbury Cove, Aug. 9-11. Gryllidae. Crickets Gryllus Linnaeus G. assimilis Fab. Common field cricket. Bar Harbor; Long Pond; Narrows, June 20- Aug. 13. Nemobius Serville N. FASCIATUS De G. Striped grass-cricket. Bar Harbor; Narrows, Aug. 13-14. 21 22 BIOLOGICAL SURVEY OF N. PALUSTEis Blatch. Sphagnum cricket. Common in Sphag num bogs. Witch Hole Pond ; Tremont, Aug. 18-23. N. CAROLiNus Scud. Carolina ground cricket. Bar Harbor, Aug. 14. AcRiDiDAE. True locusts, or short-horned grasshoppers Orphulella Giglio-Tos 0. sPECiosA Scud. Pasture locust. Salisbury Cove, Aug. 11. Chloealtis Harris C. coNSPERSA Harr. Sprinkled locust. Long Pond, Aug. 21. Chorthippus Fieber C. cuRTiPENNis Harr, Meadow locust. Common, July 16- Aug. 23. Mecostethus Fieber M. LiNEATus Scud. Striped sedge locust. Meadow near Salisbury Cove; Breakneck Pond, Aug. 9-Sept. 8. M. GRACILIS Scud. Northern sedge locust. 'Great Heath,' S. W. Harbor; Meadow Brook, Aug. 23-Sept. 13. Chortophaga Saussure C. viRiDiFASciATA Dc G. Greeii-stripcd locust. Salisbury Cove, June 9. Camnula Stal C. PELLuciDA Scud. Clcar-wiiiged locust. S. W. Harbor, Aug. 20. DISSOSTEIRA Scudder D. CAROLINA Linn. Carolina locust. Common, July 27- Aug. 14. CiRCOTETTix Scudder C. VERRUCuLATus Kby. Snapping locust. Abundant on the top of Green Mt., July 25; also taken at Bar Harbor; Salisbury Cove ; S. W. Harbor, Aug. 13-20. Melanoplus Stal M. MEXiCANus ATLANis Rilcy. Lcsscr migratory locust. Common, Aug. 13-21. M. BiviTTATUS Say. Two-striped locust. Bar Harbor; Narrows ; S. W. Harbor, Aug. 13-20. M. BOREALis Fieb, Northern locust. Salisbury Cove; Bar Harbor, June 9-July 29. THE MOUNT DESERT EEGION 23 M. FAsciATus Walk. Bar Harbor, 'Great Clearing'; S. W. Harbor, June 10-Aug. 20. M. MANcus Smitli. Common on the top of Green Mt., Aug. 17 ; Bar Harbor, Aug. 18. NoMOTETTix Morse N. CRisTATUs Scud. Crcsted pygmy locust. Bar Harbor ; Sal- isbury Cove ; S. AV. Harbor, June 13- Aug. 18. AcRYDitTM Geoffroy A. GRANULATUM Kby. Granulate pygmy locust. Bar Har- bor, June 8-13. A. GRANULATUM var. INCURVATUM Haucock. Beach Mt., 800 ft., Sept. 12 (Alexander). Order PLECOPTERA Perlidae. Stone flies Perla Geoffroy P. immarginata Say. Duck Brook, Aug. 18. P. MEDIA Walk. Long Pond, June 25-27. P. sp. Long Pond, June 15. Alloperla Banks A. iMBECiLLA Say. 'Mt. Desert,' June 10. A. LATERALIS Baiiks. Bar Harbor, July 20. Chloroperla Newman C. CYDIPPE Newn. Echo Lake, July 12. IsoPERLA Banks I. MONTANA Banks. Bar Harbor, June 8. Perlinella Banks P. DRYMO Newn. Jordan Pond, June 16. Acroneuria Pictet A. LYcoRiAS Newn. Long Pond, July 20. Nemoura Latreille N. SERRATA Claas. Bar Harbor, June 8. N. VENOSA Banks? Long Pond, June 27. Leuctra Stephens L. sp. S. W. Harbor, June 20 ; Bar Harbor, June 23. 24 BIOLOGICAL SURVEY OF ! i Order EPHEMERIDA \ Ephemeridae j Ephemera Linnaeus ] E. siMULANs Walk. Echo Lake, July 17-Sept. 7. \ Blasturus Eaton B. cupiDA Say. Long Pond, June 27. i Habrophlebia Eaton i H. viBRANs Needh. Duck Brook; Bar Harbor, June 18. Habrophlebiades Ulmer H. AMERICANA Baiiks. Duck Brook; Bar Harbor, June 13- Aug. 18. Callibaetis Eaton C. FERRUGiNEus Walsli. Bar Harbor, July 29. | • i Order ODONATA ! Agrionidae. Damsel flies ! Agrion Fabricius ' A. MACULATUM Beauv. Long Pond; Bar Harbor, June 26- July 21. I Lestes Leach L. DisjuNCTus Selys. Bar Harbor, July 29. L. FORCiPATUs Ramb. Bar Harbor, July 24. I L. uNCATus Kby. Bar Harbor ; S. W. Harbor, July 13-29. ' L. \^GILAX Hag. Witch Hole Pond, June 13. I Argia Kambur ] A. moesta Hag. Long Pond, June 20. | A. ^^oLACEA Hag. Eagle Lake, July 18. < Enallagma Charpentier E. CIVILE Hag. Bar Harbor, June 8; N. E. Harbor (Merrill). E. EBRiuM Hag. N. E. Harbor (Merrill). : E. EXULANS Hag. N. E. Harbor (Merrill). E. HAGENi Walsh. Common, June 8- Aug. 16. j E. MiNuscuLUM Morse. Echo Lake, July 12. j E. CYNATHiGERUM Cliarp. Bar Harbor, July 11. j THE MOUNT DESERT EEGION 25 Nehalennia Selys N. IRENE Hag. Bar Harbor ; Witch Hole Pond ; S. W. Harbor, June 11-Aug. 10. Chromagrion Needham C. coNDiTUM Hag. Bar Harbor, June 11. Ischnura Charpentier I. vERTicALis Say. Common, June 11-Aug. 16. Aeshnidae. Dragon flies CoRDULEGASTER Leach C. DiASTATOPS Selys. S. W. Harbor, June 20. C. MACULATus Sclys. Bar Harbor, June 16 and 19. GoMPHUS Leach G. ExiLis Selys. Witch Hole Pond; Bar Harbor, June 11- July 30. Gr. spiCATus Hag. Bar Harbor, June 8. BoYERiA Leach B. viNosA Say. Seal Cove Brook, Sept. 8. Anax Leach A. JUNIUS Drury. Ironbound Isl. (Blaney). Aeshna Fabricius A. UMBROSA AValk. Bar Harbor, Aug. 10; N. E. Harbor, Sept. 6 (Merrill). A. iNTERRUPTA Walk. Iroiibouiid Isl. (Blaney). A. CLEPSYDRA Say. Bar Harbor, Aug. 16. A. CANADENSIS Walk. Bar Harbor, Aug. 16. DiDYMOPS Eambur D. TRANSVERSA Say. Common, June 11-July 17. DoROCORDULiA Needham D. LEPiDA Hag. Bar Harbor, June 8-July 21. D. LIBERA Selys. Bar Harbor, June 8-July 29. Helocordulia Needham H. uHLERi Selys. Echo Lake, July 12. CORDULIA Leach C. sHURTLEFFi Scud. Bar Harbor, June 8-July 29. 26 BIOLOGICAL SURVEY OF Tetragoneuria Hagen T. CYNOSURA siMULANs Muttk. Eclio Lake, July 12. LiBELLULA Linuaeus L. EXUSTA Say. Witch Hole Pond ; Long Pond, June 13-26. L. QUADRiMACULATA Lluu. Common, June 8-July 11. L. SEMIFASCIATA Buim. Bar Harbor, June 15. Plathemis Hagen P. LYDiA Drury. Bar Harbor, June 11-July 20. Nannothemis Brauer N. BELLA Uliler. Witch Hole Pond, June 13. Sympetrum Newman S. RUBicuNDULUM Say. Common; Echo Lake; Bar Harbor; Tremont, Aug. 9-23. S. OBTRusuM Hag. Narrows ; Witch Hole Pond, Aug. 13-18. S. cosTiFERUM Hag. Bar Harbor, Aug. 18. S. viciNUM Hag. Bar Harbor, Aug. 10. Leucorrhinia Brittinger L. INTACTA Hag. Common, June 8-July 21. L. GLACiALis Hag. Echo Lake ; Beaver Dam Pond, July 12-24. L. FRiGiDA Hag. Echo Lake; Witch Hole Pond, June 13- July 30. L. PROXiMA Calv. Witch Hole Pond; Bar Harbor, June 11- July 24. Celithemis Hagen C. ELiSA Hag. Witch Hole Pond, Aug. 18. Order MEGALOPTERA SlALIDAE SiALis Latreille S. iNFUMATA Newn. Duck Brook; Echo Lake; Long Pond, June 13-20. Chauliodes Latreille C. FASCiATus Walk. Sieur de Monts Spring, Bar Harbor, June 21. C. SERRicoRNis Say. Bar Harbor; Jordan Pond; Echo Lake, June 8-17. THE MOUNT DESERT REGION Zl Order NEUROPTERA HEMEROBiroAE SiSYRA Burmeister S. viCARiA var. umbrata Needh. S. W. Harbor, Sept. 3 (Alex- ander). Hemerobius Liunaeus H. HUMULi Linn. N. E. Harbor, July 17 (Minot). H. marginatus Stepli. Echo Lake ; Long Pond ; Bar Harbor, June 27-Aiig. 10. H. SIMPLEX Banks. N. E. Harbor, Sept. 23 (Minot). H. venustus Banks. N. E. Harbor, July 1-Aug. 29 (Minot). BoRiOMYiA Banks B. disjuncta Banks. S. W. Harbor; N. E. Harbor, Aug. 24- Sept. 27. B. LONGiFRONs Walk. Common, June 10-Aug. 29. Sympherobius Banks S. AMicuLus Fitch. N. E. Harbor, July 1-Aug. 10 (Minot). MiCROMUS Kambur M. ANGULATus Stcph. S. W. Hai'bor, June 24. M. MONTANus Hag. N. E. Harbor, Sept. 4 (Minot). M. POSTICUS Walk. S. W. Harbor, Aug. 29 (Alexander). Chrysopidae. Lace wings Chrysopa Leach C. NiGRicoRNis Burm. Bar Harbor ; Salisbury Cove, July 10- Aug. 11. C. oculata Say. S. W. Harbor; Salisbury Cove, June 27- Aug. 22. C. YPSiLON Fitch. Salisbury Cove, July 18. Meleoma Fitch M. signoretti Fitch. Duck Brook; Long Pond; N. E. Harbor (Minot), June 13- Aug. 11. Eremochrysa Banks E. HAGENi Banks. N. E. Harbor, July 13 (Minot). C ONIOPTER YGIDAE Coniopteryx Curtis C. viciNA Hag. Echo Lake, July 12. 28 BIOLOGICAL SURVEY OF Order CORRODENTIA PSOCIDAE Psocus Latreille P. coNFRATERNus Baiiks. S. W. Hai'bor ; Duck Brook, Aug. 20-Sept. 11. P. HAGENi Banks. Green Mt.; N. E. Harbor (Minot), Aug. 17-18. P. LEiDYi Aaron. Beach Mt., Sept. 12 (Alexander). P. MOESTus Hag. S. W. Harbor, Aug. 26-Sept. 12 (Alex- ander). P. NovAEScoTiAE Walk. S. W. Harbor; Beach Mt., Aug. 31- Sept. 12 (Alexander). P. QUIETUS Walsh. S. W. Harbor ; Beach Mt., Aug. 31-Sept. 12 (Alexander). P. PERPLExus Walsh. Common, July 30-Aug. 30. P. poLLUTus Walsh. S. W. Harbor ; Beach Mt., Aug. 26-Sept. 12 (Alexander). P. sLossoNAE Banks. S. W. Harbor ; Beach Mt., Aug. 31-Sept. 12 (Alexander). Graphopsocus Kolbe G. CRuciATus Linn. Bar Harbor, June 17-25. Caeciliidae Caecilius Curtis C. AURANTiACus Hag. Eclio Lake; Witch Hole Pond; S. W. Harbor, July 21-Sept. 12. C. sp. Beach Mt., Sept. (Alexander). PoLYPSOCus Hagen P. coRRUPTUs Hag. Bar Harbor; S. W. Harbor, July 12- Sept. 12. Peripsocus Hagen P. MADESCENS Walsh. S. W. Harbor (Alexander) ; Long Pond, Aug. 26-Sept. 9. P. MADiDus Hag. Witch Hole Pond; S. W. Harbor; Beach Mt., July 30-Sept. 12. THE MOUNT DESERT REGION 29 Myopsocidae LiCHENOMiNA Eiiderlein {Myopsocus Hagen) L. LUGENS Hag. Salisbury Cove, July 15. L. sPARsus Hag. Duck Brook, Aug. 18. Mesopsocidae Elipsocus Hagen Long Pond; Seal Cove; Bar Harbor, E. CANADENSIS PrOV. Sept. 7-10. P. n. sp. (Chapman). Philotarsus Kolbe S. W. Harbor Beach Mt., Aug 31- Sept. 12 (Alexander). Order MALLOPHAGA Menoponidae Menopon Nitzsch M. GALLTNAE Liim. Commoii chicken louse. M. STRAMINEUM Nitz. Iiifests domestic fowls. M. CROCATUM Nitz. Occurs on American woodcock. M. EXPANSUM Osb. Occurs on bobolink. COLPOCEPHALUM NitzSch C. FusciPES Piaget. Infests various gulls. C. picEUM Denny. Found on great black-backed gull. C. ocHRACEUM Nitz. Occurs on pectoral sandpiper. C. PUSTULosuM Piaget. Infests belted kingfisher. C. suBPACHYGASTER Piaget. Occurs on great horned owl. AcTORNiTHOPHiLUS Ferris A.. AFFiNE Nitz. Found on spotted sandpiper. A. FUNEBRE Kell. Infests various gulls. A. MINUS Kell. & Chap. Occurs on sanderling. A. TiMiDus Kell. On golden and black-bellied plovers. Myrsidea Waterston M. AMERICANA Kcll. Occurs Oil commou crow. M. cucuLARis Nitz. Occurs on starling. M. CRASsiPEs Piaget. Found on Baltimore oriole. M. DissiMiLis Kell. Infests purple martin. M. iNTERRUPTA Osb. Fouiid Oil commoii crow. M. iNCERTA Kell. Occurs on various passerines. M. RusTicA Nitz. Infests purple martin. 30 BIOLOGICAL SURVEY OF '{ 1 Tetrophthalmus Grosse i T. iNCOMPOsiTus Kell. & Chap. Occurs on double-crested cor- I morant. ] Dennyus Neumann J D. DUBius Kell. Occurs on chimney swift. ; D. TEUNCATUS Olfcrs. Also found on chimney swift. ! Trinton Nitzsch ' T. LiTURATUM Nitz. lufcsts duck and geese. j T. QUERQUEDULAE Linii. Occurs on the various wild ducks. '. PsEUDOMENOPON Mjoberg J p. PACiFicuM Kell. Found on grebes. Laemobotiiriidae i Laemobothrion Nitzsch L. NIGRUM Burm. Occurs on coots. j Ricinidae i EiciNis De Geer . R. ANGULATus Kell. Fouud on kingbird. R. ERENATus Nitz. Occurs on golden-crowned kinglet. R. LiNEATus Osb. Found on ruby-throated hummingbird. Philopteridae GONIODES Nitzsch G. DAMicoENis Nitz. lufcsts domcstic pigeon. LiPEURUS Nitzsch L. CAPONis Linn. Infests domestic fowls. ' L. HETEROGRAPHus Nitz. Also Oil domcstic fowls. •] Philopterus Nitzsch i P. AGELAii Osb. Found on red-winged blackbird. i P. AURiTus Scop. Occurs on hairy woodpecker. j P. BUTEONis Pack. Infests red-shouldered hawk. | P. coLYMBiNus Drury. Found on loon. ] P. coRvi Osb. Occurs on crow. j P. CURSOR Nitz. Frequents various species of owls. P. FuscovENTRALis Osb. Occurs Oil wood pewee. ; P. FusiFORMis Drury. Infests knot and sandpipers. J THE MOUNT DESERT REGION 31 < ] P. GONOTHORAX Giebel. Occurs on various gulls. P. HALiETi Osb. Found on bald eagle. P. LATiROSTRis Burm. Occurs on black-billed cuckoo. ; P. MELANocEPHALus Nitz. lufests tcms. j p. PLATYSTOMus Nitz. Fouud on liawks and eagles. \ P. QuiscALi Osb. Occurs on grackles and crows. \ P. suBFLAVEscENs Gcof . Occurs ou northern strike, crossbills, ' etc. P. siALis Osb. Infests bluebird. j P. TRANSPOsiTus Kcll. Fouud ou cowbird. i Anatoecus Cummings A. DENTATus Scop, Common on ducks and geese. « EUSTRIGIPHILUS EwiNG | E. BUBONis Osb. Infests great horned owl. | E. CEBLEBRACHYS Nitz. lufcsts SUOWV Owl. i i CUCULOECUS EwiNG " ! C. coccYGi Osb. Occurs on yellow-billed cuckoo. : Degeeriella Neumann I D. ACTOPHiLA Kell. & Chap. Found on sanderling. ; D. ALCAE Denny. Occurs on dovekie. j D. AMERICANA Kcll. & Chap. Found on grebes. D. BRACHYTHORAX Nitz. Occurs Oil ccdar waxwing. ; D. coMPLEXivA Kell. & Chap. Found on sanderling. | D. coRDATA Osb. Occurs on Hudsonian godwit. j D. CYCLOTHORAX Nitz. Iiif csts Euglisli sparrow. | D. DiscocEPHALA Nitz. Occurs on bald eagle. ! D. EUPREPES Kell. & Chap. Occurs on turnstone. D. FURVA Nitz. Found on plovers and phalaropes. D. FuscA Mtz. Occurs on hawks and eagles. D. GRACILIS Nitz. Found on purple martin. D. iLLUSTRis Kell. Occurs on red-winged blackbird. : D. LATIROSTRIS Burm. Occurs on black-billed cuckoo. D. OPACA Kell. & Chap. Found on semipalmated plover. D. ORARIA Kell. Occurs on golden plover. I D. ORNATA Grube. Infests various gulls. ] 32 BIOLOGICAL SURVEY OF D. oRNATissiMA Gieb. Occurs on red-winged blackbird. D. ORPHEA Osb. Occurs on catbird. D. PALLiDULA Harrison. Occurs on rose-breasted grosbeak. D. PRAESTANs Kcll. Occurs on terns. D. picTURATUs Osb. Occurs on meadow lark. D. ROTUNDATA Osb. lufcsts crow. D. SECONDARIA Osb. Also infcsts crow. D. SIMPLEX Kell. Found on robin. D. sTRAMiNEA Deiinv. Occurs on flicker and other woodpeck- ers. D. TYRANNA Osb. Occurs on kingbird. Rallicola Johnston and Harrison R. cuspiDATA Scop. Occurs on coot. R. BisETosA Piaget. Occurs on rails. Orotthobius Denny 0. cYGNi Linn. Infests swan. O. GONioPLEURUs Deuiiy. Occurs on the Canada goose. EsTHiOPTERUM Harrison E. ANSERis Linn. Occurs on geese. E. ARDEA Linn. Found on herons and bitterns. E. BOTAURi Osb. Occurs on the American bittern. E. coLUMBAE Linn. Infests domestic pigeon. E. CRASSicoRNE Scop. Commoii on several species of ducks. E. INFUSCATUM Osb. Occurs on woodcock, etc. E. LONGicoRNE Piaget. Found on double-crested cormorant. E. LURiDUM Nitz. Occurs on coot. Order THYSANOPTERA. Thrips Phloeothripidae Anthothrips Uzel A. vERBASCi Osb. Duck Brook, June 13. THE MOUNT DESERT REGION 33 Order HOMOPTERA FULGORIDAE Cixius Latreille C. BASALis Van D. Bar Harbor, July 24. C. MiscELLus Van D. Bar Harbor, Aug. 18; Echo Lake, Aug. 29 (Alexander). C. coLOEPiuM Fitch. Bar Harbor, June 15. C. piNi Fitch. Bar Harbor; Salisbury Cove; S. W. Harbor, July 15-Aug. 26. Bruchomorpha Newman B. ocuLATA Newn. Long Pond, Aug. 21. Lamenia Stal L. VULGARIS Fitch. AVitch Hole Pond ; Bar Harbor ; Green Mt., July 11- Aug. 17. Kelisia Fieber K. AXiALus Van D. Tremont, Aug. 23. Megamelanus Ball M. sPARTiNi Osb. Salisbury Cove, July 25. Phyllodinus Van Duzee P. NERVATus Van D. Bar Harbor; Salisbury Cove; Echo Lake, July 15-24. Laccocera Van Duzee L. viTTiPENNis Van D. S. W. Harbor, Aug. 20. Stobaera Stal S. TRicARiNATA (Say). Salisbui'y Cove, July 25. Liburniella Crawford L. ORNATA Stal. Salisbury Cove, July 15. LiBURNIA Stal L. PELLuciDA Fab. Echo Lake; Green Mt. ; Bar Harbor, July 12-30. L. PUELLA Van D. Salisbury Cove, July 25. 34 BIOLOGICAL SURVEY OF CiCADELLiDAE. Leaf-hoppers Agallia Curtis A. QUADRiPUNCTATA Prov. Bar Harbor; 'Narrows,' July 19-27. A. sANGuiNOLENTA Prov. Clover leaf-hopper. Bar Harbor, Aug. 18. Idiocerus Lewis I. FiTCHi Van D. Salisbury Cove, July 15. I. pRovANCHERi Van D. Green Mt., July 25. Macropsis Lewis M. soRDiDus Van D. S. W. Harbor, July 24. Oncopsis Burmeister O. NiGRiNASi Fitch. Bar Harbor; Salisbury Cove; S. W. Harbor, July 13-Aug. 30. 0. PRUNi Prov. Common, July 12-Sept. 3. 0. soBRiNus Walk. N. E. Harbor; S. W. Harbor, July 13- Aug. 10. Oncometopia Stal 0. LATERALIS Fab. Loiig Pond, Sept. 7. Cicadella Latreille C. GOTHiCA Sign. Echo Lake ; Salisbury Cove ; S. W. Harbor, July 15-Sept. 6. Helochara Fitch H. COMMUNIS Fitch. Bar Harbor; Narrows, July 19-27. Graphocephala Van Duzee G. cocciNEA var. teleformis Walk. Bar Harbor ; S. W. Har- bor, July 24-Sept. 6. Draeculacephala Ball D. mollipes Say. Echo Lake, July 12. D. novaboracensis Fitch. Tremont ; S. W. Harbor ; Salisbury Cove, July 23-Aug. 23. Evacanthus Le Peletier and Serville E. ACUMiNATus Fab. Bar Harbor, July 19. Gypona Germar G. ocTOLiNEATA Say. 'Mt. Desert,' July 30 (McAtee). G. OCTOLINEATA var. STRIATA Burm. Bar Harbor; Duck Brook; Salisbury Cove, July 24-Sept. THE MOUNT DESERT REGION 35 AcucEPHALUS Germar A. ALBiFRONs Liiiii. S. W. Harbor, Aug. 26-Sept. 3 (Alex- ander). A. NERvosus Schr. Bar Harbor, Aug. 10. Hecalus Stal H. LiNEATUs Uhler. Mouth of Northeast Creek; Narrows, July 25-27. ScAPHOiDEUS Uhler S. CARiNATus Osb. Bar Harbor, July 24. S. iMMiXTus Say. Bar Harbor; S. W. Harbor, July 20- Sept. 6. S. scALARis Van D. S. W. Harbor, Sept. 6. S. LOBATus Van D. S. W. Harbor ; Long Pond, Sept. 3-7. Platymetopius Burmeister P. ACUTus Say. Common, July 23-Sept. 8. Deltocephalus Burmeister D. ABDOMiNALis Fab. Salisbury Cove, July 15. D. DEBiLis Uhler. 'Mt. Desert,' July 30 (McAtee). D. FLAVoviRENs G. & B. Salisbury Cove, July 15. D. iNiMicus Say. Salisbury Cove; Bar Harbor, July 14-19. D. SAYi Fitch. S. W. Harbor, July 13; Dry Mt., Aug. 31 (Osborn). D. SIMPLEX Van D. Salisbury Cove; Narrows, July 25-27. D. sTRiATus Linn. {D. affinis G. & B.). Bar Harbor, Aug. 10. D. SYLVESTRis Osb. & Ball. 'Mt. Desert,' July 30 (McAtee) ; S. W. Harbor, Aug. 30. EuscELis Brulle E. ANTHRACiNus Vau D. S. W. Harbor; Salisbury Cove, June 27-July 15. E. ARCTosTAPHYLi Ball. Tremoiit, Aug. 23. E. EXTRUsus Van D. Bar Harbor, July 30. E. HUMiDus Osb. Tremont, July 23. E. STRiATULUs Fallen (plutonis Uhler). Echo Lake, July 12. E. STRioLus Fallen. Tremont, Aug. 23. E. cuNEATus Sand. & De L. Tremont, Aug. 23. 36 BIOLOGICAL SURVEY OF EuTETTix Van Duzee E. joHNSONi Van D. S. W. Harbor, Aug. 26 (Alexander). Phlepsius Fieber P. FusciPENNis Van D. Tremont, Aug. 23. P. FULviDOESUM Fitcli. Eclio Lake; Dry Mt., Aug. 29-31 (Os- born). P. iRRORATus Say. S. W. Harbor, Sept. 6. Thamnotettix Zetterstedt T. BELLI Uhler. Eagle Lake, July 18. T. CHLAMYDATus Prov. Loiig Poud ; Eagle Lake, July 16-18. T. CLiTELLARius Say. Saddle-backed leaf-hopper. Bar Har- bor, July 20. T. DECiPiENs Prov. S. W. Harbor, Aug. 26. T. EBURATus Van D. Bar Harbor, Aug. 10; S. "VV. Harbor, Sept. 3 (Alexander). T. KENNicoTTi Uliler. S. W. Harbor, Sept. 3 (Alexander). T. MELANOGASTER Prov. S. W. Hai'bor ; Echo Lake, Aug. 26- 29 (Alexander). T. SMiTHi Van D. Salisbury Cove, July 15. T. suBcupRAEUs Prov. Tremont, Aug. 23 ; Echo Lake, Sept. 7. T. WALDANus Ball. Bar Harbor, July 24. Chlorotettix Van Duzee C. uNicoLOE Fitch. Bar Harbor, July 24. CiCADULA Zetterstedt C. SEXNOTATA Fallen. S. W. Harbor, July 13. C. SLossoNi Van D. S. W. Harbor, July 13-Aug. 20. Balclutha Kirkaldy B. PUNCTATA Thunb. Bar Harbor; Echo Lake; S. W. Har- bor, July 12-Sept. 6. Empoasca Walsh E. ATROLABEs Gillette. SaRsbury Cove, July 15. E. FLAVESCENS Fab. Bar Harbor, July 24. E. OBTUSA Walsh. 'Mt. Desert,' July 30 (McAtee). E. uNicA Prov. S. W. Harbor, Sept. 6. THE MOUNT DESERT EEGION 37 Typhlocyba Germar T. FLAvoscuTA Gillette. Bar Harbor ; Echo Lake ; S. W. Har- bor, July 12-Sept. 5. T. NIGRA Osb. Bar Harbor, July 10-Aug. 31. T. VANDUZEi Gillette. Bar Harbor, Aug. 10. Empoa Fitch E. QUERCi var. gillettei Van D. (T. hifasciata G. &. B.). Bar Harbor; S. W. Harbor, July 24-Sept. 5. Erythroneura Fitch E. comes var. ziczac Walsh. S. W. Harbor, July 13. On woodbine {Ampelopsis). E. OBLIQUA Say. Long Pond, Sept. 7, 1922. MEMBRAcroAE. Tree-lioppers Campylenchia Stal C. latipes Say. Bar Harbor; S. W. Harbor, July 24-Aug. 21. Ceresa Amyot and Serville C. BASALis Walk. N. E. Harbor (Minot) ; S. W. Harbor, Aug. 26-Sept. 6. Carynota Fitch C. sTUPiDA Walk. Salisbury Cove, July 15, on birch (Olsen). Cyrtolobus Goding C. iNTERMEDius Emmous. Bar Harbor, June 21. Ophiderma Fairmaire 0. FLAVA Goding. Bar Harbor, June 21. PUBLILIA Stal P. coNCAVA Say. Common, June 10-Sept. 6. Cercopidae. Spittle-insects Aphrophora Germar A. siGNORETii Fitch. Bar Harbor; Salisbury Cove; N. E. Harbor, July 11-Aug. 24. A. QUADRiNOTATA Say. S. W. Harbor, Sept. 6. Lepyronia Amyot and Serville L. QUADRANGULARis Say. S. W. Harbor, Sept. 6. 38 BIOLOGICAL SURVEY OF Philaenus Stal P. spuMAEius Linn. Common and showing following variations. var. usTULATus Fall. The common form : July 13- Aug. 21. var. LEucoPHTHALMus Linn. S. W. Harbor; Echo Lake; Narrows, July 13-Aug. 29. var. LEucocEPHALus Linn. S. W. Harbor, July 13. var. LiNEATA Fab. S. W. Harbor ; Long Pond ; Narrows, July 15-27. var. PALLiDus Zett. S. W. Harbor; Salisbury Cove, July 13-14. P. LiNEATus Linn. S. W. Harbor ; Salisbury Cove, July 13-15. Philaronia Ball P. BiLiNEATA Say. ^ Grass spittle bug.' Narrows, July 27- Aug. 13. Clastoptera Germar C. OBTUSA Say. 'Alder spittle bug.' Witch Hole Pond; Long Pond, July 30-Aug. 21. C. PROTEUS Fitch. Bar Harbor; S. W. Harbor, July 30- Aug. 21. var. viTTATA Ball. Bar Harbor, Aug. 18. var. piNi Fitch. Bar Harbor; Tremont; S. W. Harbor, July 30-Sept. 6. CiCADIDAE TiBiCEN Latreille T. CANicuLARis Harr. Quite common during August. PsYLLiDAE. Jumping plant-lice Li VI A Latreille L. VERNALis Fitch. Seal Cove Brook, Sept. 8. L. MACULiPENNis Fitch. S. W. Harbor, Aug. 20. The nymphs develop in a gall formed on rush, Juncus. Aphalara Foerster A. VEAZiEi Patch. 'Mt. Desert,' July 30 (McAtee). THE MOUNT DESERT REGION 39 Trioza Foerster T. TRiPUNCTATA Fitcli. Common at the foot of Western Mt., July to Sept. The nymphs are gregarious on the under side of the terminal leaves of the blackberry, causing them to curl and form rosette-like bunches. PsYLLA Geoffroy P. ANNULATA Fitch. 'Mt. Descrt,' July 30 (McAtee). The nymphs live on maple. P. FLOCcosA Patch. 'Mt. Desert,' July 30 (McAtee). The nymphs live on the growing twigs of alder. P. CARPixicoLA Crawf. Salisbury Cove; S. W. Harbor, July 15-Aug. 30. P. TEiMACULATA Crawf. Salisbury Cove; S. W. Harbor, July 15-Aug. 30. Aphididae. Plant-lice Eriosoma Leach E. LANiGERUM Hausm. Woolly aphid. Bar Harbor. The brood from the over-wintering eggs form the leaf clusters known as 'rosettes' on the elm, then migrate to the apple and thorn, and return to the elm in the fall. Prociphilus Koch P. TESSELLATA Fitch. Woolly Alder aphid. Migrates between the maple and alder. Melaphis Walsh M. RHOLS Fitch. Large rounded galls on the leaves of the staghorn sumach. 'Mt. Desert' (J. G. Jack). Pemphigus Hartig P. popuLi-CAULis Fitch. Bar Harbor; Salisbury Cove, Aug. Forms galls at the base of the leaves of poplar. HoRMAPHis Osten Sacken H. HAMAMELiDis Fitch. Bar Harbor. Forming conical galls on the leaves of the witch hazel {Hamamelis virginica) and migrating to birch {Betula). 40 BIOLOGICAL SURVEY OF Chermes Liimaeus C. ABiETis Linn. Spruce gall aphid. Bar Harbor. Forms ! the 'pineapple gall' on spruce. ; C. STROBiLOBius Kaltcubach. The woolly larch gall. Salis- bury Cove. CocciDAE. Scale insects j Lepidosaphes Shinier ] L. uLMi Linn. {Mytilas pis pomorum auct.). Oyster-shell bark scale. Common, ash, mountain ash, and willow. Leucanium Burmeister L. QUERCiFEX Fitch. Oak scale. Bar Harbor and Salisbury l Cove on red oak. \ Order HEMIPTERA i CoRixiDAE. Water-boatman Arctocorisa Walleiigren A. coNocEPHALA Huiigf . S. W. Hai'bor, July 15. ; A. DECOROTELLA Huugf . S. W. Harbor, July 14-18. | A. iNTERRUPTA Say. Bar Harbor; Salisbury Cove, June 14- Aug. 10. A. MAEROPALA Huiigf . S. W. Harbor, June 18. I A. NiTiDA var. minor Abbt. Salisbury Cove, July 18-Aug. 10. I A. SERIATA Abbt. Salisbury Cove, Aug. 11. A. VULGARIS Hungf . Salisbury Cove, Aug. 10. | Belostomatidae. Giant water-bugs Lethocerus Mayr L. AMERiCANus Leidy. Bar Harbor, July 29; small pond on j hill east of Salisbury Cove, Aug. 11, nymphs only. j Nepidae. Water-scorpions Eanatra Fabricius R. FuscA Pal.-Beauv. {americana Mont.). Bar Harbor, July 29; small pond on hill east of Salisbury Cove, Aug. 11 | (nymphs). \ NOTONECTIDAE | NoTONECTA Linnaeus. Back-swimmers N. UNDULATA Say. Lily Pond, Bar Harbor, July 29; Salis- bury Cove, Aug. 10. THE MOUNT DESERT REGION -41 Saldidae. Shore-bugs Saldula Van Duzee S. iNTERSTiTiALis Sav. Nan'ows, Aug. 13. S. MAJOR Prov. Bar Harbor ; S. W. Harbor, June 11-July 15. S. PALLiPEs Fab. Narrows, Aug. 13. Lampracanthia Eeuter L. coRiACEA Uhler. S. W. Harbor ; Narrows, June 18-July 17 Veliidae Ehagovelia Mayr R. OBESA Uhler. Duck Brook, Aug. 18. Gerridae. Water-striders Gerris Fabricius G. ARGENTicoLLis Parsli. 'Mt. Desert,' July 28 (McAtee). G. BUENOi Kirk. Salisbury Cove ; Bar Harbor, Aug. 10, 11. G. MARGiNATus Say. Ice pond, Manset; S. W. Harbor, June 18-July 13. G. REMiGis Say. Duck Brook ; Bar Harbor ; Manset, June 11- Aug. 18. G. (LiMNOPOEUs) RUFOscuTELLATus Latr. Bar Harbor; Salis- bury Cove, June 14-July 18. Trepobates Uhler T. picTus H.-Sch. Ice pond, Manset, June 18. MiRiDAE. Leaf-bugs Plagiognathus rieber P. CHRYSANTHEMi Wolff. Bar Harbor ; S. W. Harbor, July 8-14. P. oBscuRus Uhler. Bar Harbor, July 19- Aug. 10. Ehinocapsus Uhler R. vANDuzEii Uhler. Narrows, Aug. 13. LOPUS Hahn L. DECOLOR Fall. Salisbury Cove; Bar Harbor, July 15-22. Macrostylus Fieber M. SEXGUTTATus Prov. Echo Lake, July 12. 42 BIOLOGICAL SURVEY OF Orkctoderus Uhler 0. OBLiQuus Uhler. S. W. Harbor ; Salisbury Cove, June 16- July 13. DiCYPHUS Uhler D. AGiLis Uhler. Long Pond, July 16. Macrolophus Fieber M. sEPARATus Uhler. Green Mt., July 25. MoNALCORis Dahlbom M. riLicis Linn. Bar Harbor, June 11-July 22. Strongylocoris Blanehard S. STYGicus Say. Salisbury Cove; Bar Harbor, July 15-17. Orthocephalus Fieber 0. MUTABiLis Fall. Bar Harbor; S. W. Harbor; Salisbury Cove, June 11-July 15. Ilnacora Keuter 1. MALiNA Uhler. Salisbury Cove, July 13. Mecomma Fieber M. AMBULANs Fall. Salisbury Cove ; S. W. Harbor, July 15- Sept. 13. Orthotylus Fieber 0. CATULus Van D. S. W. Harbor, July 13. 0. FLAVosPARsus Salil. S. W. Harbor, July 13. Ceratocapsus Eeuter C. puMiLus Uhler. S. W. Harbor, Sept. 3 (Alexander), PiTHANUS Fieber P. MAERKELi H.-Sch. Bar Harbor; S. W. Harbor; Salisbury Cove, June 22-July 19. COLLARiA Provancher C. MEiLLEUEii Prov. S. W. Harbor, July 13. MiRis Fabricius M. DOLABEATus Liiiu. S. W. Harbor ; Salisbury Cove, July 11-18. Trigonotylus Fieber T. EUFicoRNis Geoff. Salisbury Cove; 'Narrows,' July 15-27. THE MOUNT DESERT EEGION 43 Stenodema Laporte S. TEispiNosuM Reut. S. W, Harbor; Bar Harbor, July 13- Aug. 14. S. viciNUM Prov. Narrows; Bar Harbor; S. W. Harbor, July 27-Sept. 6. Platytylellus Eeuter P. iNsiGNis Say. S. W. Harbor, Aug. 23. Neoborus Reuter N. AMOENus Reut. S. W. Harbor, July 24. Capsus Fabricius C. ATER Linn. Bar Harbor ; Salisbury Cove, June 11-July 15. C. ATER var. TYRANNus Fab. Bar Harbor, June 11. C. ATER var. sEMiFLAVus Limi. Bar Harbor; S. W. Harbor; Salisbury Cove, June 11-July 15. Lygus Halm L. CAMPESTRis Linn. Narrows ; S. W. Harbor, Aug. 13-Sept. 6. L. PRATENsis Linn. Tarnished plant-bug. Common, June 27- Sept. 27. It feeds on a great many vegetables and flower- ing plants. L. vANDUZEEi Knight. Common, July 13-Sept. 27. L. VANDuzEEi var. RUBROCLARus Kuight. S. W. Harbor, July 13. L. COMMUNIS Knight. S. W. Harbor, July 13. L. HiRTicuLus Van D. Common, July 6-Sept. 3. L. oMNivAGUs Knight. Bar Harbor, July 19. L. PABULiNus Linn. Echo Lake, July 17. L. viTTicoLLis Reut. N. E. Harbor (Minot) ; Echo Lake, July G-17. Polymerus Hahn. (Poecilocystus of authors) P. VENATicus Uhler. 'Mt. Desert.' PoEciLOCAPSUs Reuter P. LiNEATus Fab. Bar Harbor; S. W. Harbor, July 13-20. 44 BIOLOGICAL SURVEY OF Adelphocoris Reuter A. EAPiDus Say. S. W. Harbor, July 11. Calocoris Fieber C. NORVEGicus Gmel. Salisbury Cove; Bar Harbor, July 18-19. Phytocoris Fallen P. EXiMius Reut. Bar Harbor; N. E. Harbor (Minot), July 20-Aug. 19. P. NEGLECTA Kuiglit. N. E. Harbor, July 26 (Minot). Mesoveliidae Mesovelia Mulsant and Eey M. BisiGNATA Uhler {M. mulsanti auct.). 'Mt. Desert,' July 30 (McAtee). Reduviidae. Assassin bugs Zelus Fabricius Z. socius Uhler. N. E. Harbor, July 21 (Minot). SiNEA Amyot and Serville S. DiADEMA Fab. S. W. Harbor, Aug. 24-Sept. 6. Barce Stal B. ANNULiPES Stal. Tremont, Aug. 23. TiNGiDAE. Lace bugs CORYTHUCHA Stal C. juGLANDis Fitch. Common, June 7-Sept. 2. C. MARMOKATA Uhlcr. Narrows ; Seal Cove Brook, July 14- Sept. 8. Galeatus Curtis G. PECKHAMi Ashm. Salisbury Cove, July 15 (Olsen). Leptobyrsa Stal L. RHODODENDRi Horvath. Rhododendron lace bug. Witch Hole Pond; Bar Harbor; S. W. Harbor, July 30-Sept. 3. Melanorhopala Stal M. CLAVATA Stal. Bar Harbor; Beehive (Sanford) ; Salisbury Cove, July 24-Aug. 15. THE MOUNT DESERT EEGION" 45 Anthocoridae. Flower-bugs Anthocoris Fallen A, BOREALis Dallas. Bar Harbor; Salisbury Cove; S. W. Harbor (female), June 11-Sept. 6. Triphleps Fieber T. iNsiDiosA Say. Bar Harbor; S. W. Harbor, July 11- Sept. 6. CiMIDIDAE CiMEX Linnaeus C. LECTULARius Liuii. Commoii bed-bug. Nabidae Pagasa Stal P. FuscA Stein. Bar Harbor (Moore). Nabis Latreille N. FERUS Linn. S. W. Harbor, Sept. 6. N. RUFuscuLus Rent. Echo Lake ; S. W. Harbor, July 12-15. N. (DoLicHONABis) LiMBATus Dalil. Salisbury Cove, Aug. 7 (Sanford). N. (DoLicHONABis) PROPiNQuus Reut. Moutli of Northeast Creek, July 25. N. (Nabicula) subcoleoptratus Kby. S. W. Harbor; Salis- bury Cove, July 15-Aug. 20. Lygaeidae Lygaeus Fabricius L. KALMii Stal. Salisbury Cove, July 17 (Sanford). Obtholomus Stal 0. scoLAPAX Say {longiceps Stal). Tremont, Aug. 23. Nysius Dallas N. ERicAE Schilling. Narrows ; Tremont, Aug. 13-23. N. THYMi Wollf. Narrows, June 17-Aug. 13. IscHNORHYNCHUS Fieber 1. GEMiNATus Say. Tremont ; S. W. Harbor, Aug. 23-30. 46 BIOLOGICAL SURVEY OF Cymus Hahn C. ANGUSTATUS Stal. Narrows ; Salisbury Cove, June 9- July 15. C. DiscoRS Horvath. Echo Lake; S. W. Harbor; Salisbury Cove, July 12-15. C. LURiDA Stal. S. W. Harbor; Tremont, July 11-Aug. 30. Blissus Burmeister B. LEucoPTERus var. HiRTus Mont. Chinch bug. Salisbury Cove, July 13. Geocoris Fallen G. BULLATus Say. Bar Harbor, July 6 (Sanford). G. uLiGiNosus Say. S. W. Harbor, Sept. 6. Phlegyas Stal P. ABBREviATus Uliler. Salisbury Cove, July 13-15. LiGYROCORIS Stal L. DiFFUsus Uhler. Salisbury Cove ; S. W. Harbor, July 13- Sept. 6. L. sYLVESTRis Liuu. (L. contractus Say). S. W. Harbor, June 18-Sept. 6. Drymus Fieber D. UNUS Say. N. E. Harbor, Sept. 27 (Minot). Aradidae. Flat-bugs Aradus Fabricius A. QUADRiLiNEATus Say. Bar Harbor, July 22-27. Under bark. A. siMiLis Say. Jordan Pond, June 9 ; The Beehive, Aug. 13 (Sanford). A. ABBAS Bergroth. Salisbury Cove, July 14. A. NIGER Stal. S. W. Harbor, July 11. Under bark. COREIDAE Merocoris Perty M. DiSTiNCTUS Dallas. Salisbury Cove, Aug. 7, 1926. Alydidae Protenor Haglund P. BELFRAGEi Hagl. Meadow Brook, near Bar Harbor, Sept. 13 ; Meadow, Salisbury Cove, Aug. 7. THE MOUNT DESERT REGION 47 Alydus Tabricius A. coNSPERsus Mont. S. W. Harbor, June 21. CORIZIDAE CoRizus rallen C. CRASsicoRNis Linn. S. W. Harbor ; Bar Harbor, June 20- Sept. 13. Pentatomidae SciocoRis Fallen S. MicROPHTHALMUs Flor. S. W. HarboT, Aug. 1, 1887 (Fer- nald). Peribalus Mulsant and Eey P. LiMBOLARius Stal. Salisbury Cove, June 9 ; S. W. Harbor, July 20. Chlorochroa Stal C. UHLERi Stal. S. W. Harbor (Fernald). EuscHiSTUs Dallas E. EuscHisToiDEs VoU. {E . fissUis Ulil). Bar Harbor, July 20-Aug. 13. E. TRiSTiGMUS Say. Bar Harbor, June 15; N. E. Harbor, Sept. 22 (Minot). CoENus Dallas C. DELius Say. Bar Harbor (Parshley). Neottiglossa Kirby N. UNDATA Say. Common, July 17-Sept. 12. COSMOPEPLA Stal C. BiMACULATA Tliomas. Bar Harbor; S. W. Harbor; Salis- bury Cove, June 7-July 19. Banasa Stal B. DiMiDiATA Say. Bar Harbor; Seal Harbor; S. W. Harbor, June 7-Aug. 18. Meadorus Mulsant and Eey M. LATERALIS Say. Bar Harbor; X. E. Harbor; S. W. Harbor, July 20-Aug. 3. Elasmostethus Fieber E. CRUciATus Say. Common, July 15-Sept. 27. 48 BIOLOGICAL SURVEY OF Perillds Stal P. EXAPTus Say. S. W. Harbor, Aug. 24. Apateticus Dallas A. BRACTEATus Fitch. Nairows, Aug. 13. A. cYNicus Say. Salisbury Cove, July 25-Aug. 10. PODISUS Herrich-Seliaeffer P. MODESTus Dallas. Bar Harbor; S. AV. Harbor; Salisbury Cove, June 11-July 19. Cydnidae CORIMELAENA White C. puLicARiA Germar. Bar Harbor; Salisbury Cove (San- ford), Aug. 10, 11. Sehirus Amyot and Serville S. ciNCTUs Pal. Beauv. Common, June 20-Aug. 10. SCUTELLERIDAE HoMAEMUS Dallas H. AENEiFORus Say. Salisbury Cove; S. W. Harbor, June 20-Sept. 6. EuRYGASTER Laporte E. ALTERNATA Say. S. W. Harbor; Salisbury Cove, June 21- July 25. Order MECOPTERA Panorpidae. Scorpion flies Panorpa Linnaeus P. RUFEscENs Ramb. S. W. Harbor, Aug. 21. P. MACULOSA Hag. Bar Harbor; Green Mt., Aug. 10-17. P. suBFURCATA Westw. Eclio Lake ; S. W. Harbor ; Salisbury Cove, July 12-Sept. 7. Order TRICHOPTERA. Caddice-flies Phryganeidae Phryganea Linnaeus P. ciNEREA Walk. N. E. Harbor, Aug. 24 (Minot). THE MOUNT DESERT EEGION 49 Neuronia Leach N. CANADENSIS Baiiks. S. W. Harbor, July 15. N. DossuAEiA Say. N. E. Harbor, July 1 (Minot). N. SEMiFASCiATA Say. S. W. Harbor, June 24-27. LiMNEPHILIDAE LiMNEPHiLus Leach L. coMBiNATus Walk. Salisbury Cove, Aug. 7. L. DESPECTus Walk. Bar Harbor ; S. W. Harbor, June 24- July 21. L. MOESTus Banks. Salisbury Cove; N. E. Harbor, July 25- Aug. 11. L. PERFORATus Walk. S. W. Harbor, Aug. 24. L. suBMONiLiFER Walk. N. E. Harbor, Sept. 27 (Minot). L. ALBosTicTus Hag. ? Witch Hole Pond, June 13. CoLPOTAULius Kolenati C. coNsociA Walk. S. W. Harbor; N. E. Harbor, July 26- Aug. 23. Platycentropus Ulmer P. MACULiPENNis Koleu. {hostls Hag.). Salisbury Cove; S. W. Harbor, July 15-29. Pycnopsyche Banks P. GUTTiFER Walk. Echo Lake; Duck Brook, Sept. 7-11. Neophylax McLachlan N. AUTUMNus Vosh. S. W. Harbor (Alexander) ; Seal Cove, Sept. 5-8. Rhyacophilidae Ehyacophila Pictet R. LucTuosA Banks. Long Pond, July 16. R. TERMiNATA Bauks. Bar Harbor; Duck Brook, June 17- July 30. Chimarrha Leach C. ATERRiMA Hag. Bar Harbor ; Long Pond ; Seal Cove Brook, June 10-Sept. 8. Sericostomatidae Helicopsyche Hagen H. BOREALis Hag. Echo Lake, July 17. 50 BIOLOGICAL SURVEY OF Olemira Banks 0. AMERICANA Baiiks. Bar Harbor, July 17. Leptoceridae Triaenodes McLachlan T. FLAVESCENS Baiiks. Echo Lake, July 12. Leptocella Banks L. EXQuisiTA Walk. Great Pond, June 20. Oecetina Banks Oe. inconspicua Walk. S. W. Harbor, July; Witch Hole Pond, July 30. Mystacides Latreille M. NIGRA Linn. Echo Lake, July 12. H YDROPSY C HIDAE Hydropsyche Pictet H. sp. Duck Brook ; Bar Harbor, July 30. Polycentropus Curtis P. coNFUSus Hag. Bar Harbor, July 21. P. sp. Bar Harbor; Witch Hole Pond, July 22-30. HOLOCENTROPUS McLachlan H. iNTERRUPTUs Baiiks. S. W. Harbor, June 20. H. sp. Bar Harbor, June 21. Phylocentropus Banks P. LuciDUS Hag. Echo Lake; Bar Harbor, July 17-30. Philopotamus Leach P. DisTiNCTUS Walk. Duck Brook, July 30. Arctopsyche McLachlan A. AFiCALis Banks. Long Pond, July 16. Order LEPIDOPTERA. Moths and butterflies MiCROPTERYGIDAE MiCROPTERYX Hiibner M. AURiCRiNELLA Walslim. Long Pond, July 27. EucLEiDAE {Cochlidiidae, Limacoididae). Slug caterpillars THE MOUNT DESERT EEGIOISr Sfl ToRTRiciDiA Packard T. FLExuosA Grt. N. E. Harbor (Minot) ; Echo Lake, July 4-17. T. TESTACEA Pack. N. E. Harbor, June 26 (Minot). The larva feeds on oak, birch, wild cherry, etc. LiTHACODES Packard L. FASciOLA H.-Sch. Bar Harbor; N. E. Harbor, July 11-24. The larva feeds on maple, apple, huckleberry, etc. Packardia Grote and Kobinson P. ELEGANs Pack. Jordau Pond, June 10. The larva feeds on orchard and shade trees. P. GEMiNATA Pack. Bar Harbor, June 17. The larva feeds on wild cherry. TiNEIDAE MoNOPis Hiibner {Blabophanes H.-Sch.) M. BiFLAViMACULELLA Clem. N. E. Harbor, Aug. 22 (Minot). M. MONACHELLA Hbu. Salisbury Cove, Aug. 7. Tinea Linnaeus T. sp. N. E. Harbor, July 30 (Minot). TiNEOLA Herrich-Schaeffer T. BissELLiELLA Hum. The clothes moth. Amydria Clemens A. EFFEENATELLA Clem. N. E. Harbor, July 16 (Minot). Lyonetiidae Phyllocnistis Zeller P. popuLiELLA Cham. Bar Harbor, Aug. The larva mines the leaves of poplars. COLEOPHORIDAE Coleophora Hiibner C. coRusciPENNELLA Clem. Salisbury Cove, July 25. Oecophoridae (Depressariidae) Cryptolechia Zeller (Machimia Clem.) C. TENTOEiFERELLA Clcm. Salisbury Cove; N. E. Harbor (Minot), Aug. 20-Sept. 14. The larva feeds on oak, cherry, maple, etc., forming a web on the under side of the leaves. 52 BIOLOGICAL SURVEY OP Agnopteryx Hiibner A. ATRODORSELLA Clem. N. E. Harbor, Sept. 6 (Minot). The larva feeds on Bidens, folding the leaf lengthwise. A. PULviPENNELLA Clem. N. E. Harbor, Sept. 5 (Minot). The larva feeds on Solidago and Eupatorinm, folding the leaf lengthwise. A. ALLENELLA Walshm. S. W. Harbor; N. E. Harbor, Jnne 24-Sept. 5. A. ROBiNiELLA Pack. Salisburv Cove, July 27. The larva feed on locust (Rohinia). Depressaria Haworth D. HERACLiANA De G. Salisbui'v Cove. Larva and pupa, July 17, imago, July 30. Common on the cow parsnip ; the young larvae feed on the leaves and the larger larvae bore into the stalks to pupate. D. ALiENELLA Busck. Salisbury Cove, Aug. 25 (Dahlgren). The larva feeds on Artemesia. Semioscopis Hiibner S. PACKARDELLA Clcm. Bar Harbor, June 22. S. ALLENELLA Walshm. N. E. Harbor, Aug. 21 (Minot). The larva feeds on oak. Xylorictidae (Stenomidae) Stenoma Zeller S. scHLAEGERi Zell. N. E. Harbor, July 16 (Minot). The larva feeds on oak. S. ALGiDELLA Walk. N. E. Harbor, July 1-28 (Minot). The larva feeds on maple, etc. Gelecpiiidae Gelechia Hiibner G. TRiALBAMACULELLA Chamb. N. E. Harbor, July 3 (Minot). The larva feeds on locust, oak, sweet fern, and huckleberry, living in a nest between two leaves. Gnorimoschema Busck G. GALLAEsoLiDAGiNis Kilcy. Salisbury Cove; Bar Harbor; N. E. Harbor, June- July. The larvae live in the stems of goldenrod, forming fusiform galls. THE MOUNT DESERT REGION 53 Trichotaphe Clemens T. juNciDELLA Clem. N. E. Harbor, July 4 (Minot). The larva is a leaf roller on aster, goldenrod, etc. T. FLAVocosTELLA Clem. Salisbury Cove, July 27. The larva feeds on solidago. Lavernidae LiMNAECiA Stainton L. PHRAGMiTELLA Staiu. N. E. Harbor, July 16 (Minot). The larvae live in the seed-heads of the cat-tail, causing them to fluff out. Yponomeutidae Argyresthia Hiibner A. GOEDERTELLA Liuu. N. E. Harbor (Minot) ; Bar Harbor, Aug. 11-Sept. 13. The larvae live in the catkins of birch and alder. A. OREASELLA Clcm. S. W. Harbor, July 15. A. THuiELLA Pack. Bar Harbor, Sept. The larva mines the leaves of the arborvitae, Glyphipterygidae Choreutis Hiibner C. oNusTANA Walk. N. E. Harbor, July 1 (Minot). Allononyma Busck A. viCARiALis Zell. Echo Lake, July 29 (Alexander). Aegerhdae ( Sesiidae ) Memythrus Newman M. PYRAMiDALis Walk. S. W. Harbor ; Bar Harbor, June 26- July 11. Synanthedon Hiibner (Conopi-a Hiibner) S. coRNi Hy.Edw. Bar Harbor; Dry Mt. (Sanford), July 10-17. S. FULviPEs Harr. Bar Harbor, June 17. S. picTiPEs Grt. and Rob. S. W. Harbor ; Bar Harbor ; Mt. Cadillac, June 26-July 25. The larva bores in cherry, shad- bush, etc. S. sciTULA Harr. Bar Harbor, July 22. The larva frequents oak, Crataegus, etc. 54 BIOLOGICAL SURVEY OF S. TiPULiFOEMis Linn. The currant borer. Bar Harbor, July 26; Seal Harbor (David Rockefeller). S. PYEi Harr. S. W. Harbor, June 26. The larva bores in apple, pear, etc. S. ALBicoRNis Hy.Edw. Salisbury Cove, Aug. 10. The larva bores in willow and poplar. TORTRICIDAE Epinotia Hiibner E. soLiciTANA Walk. N. E. Harbor; Salisbury Cove, July 19- Sept. 4. Larva feeds on white birch. E. TRANSMissANA Walk. N. E. Harbor, July 8 (Minot). Ancylis Hiibner A. APicANA Walk. N. E. Harbor, July 8 (Minot). Larva feeds on raspberry. A. TiNEANA Hbn. S. W. Harbor, July 11. Larva feeds on poplar and various Rosaceae. Anchylopera Stephens A. NEBECULANA Clcm. N. E. Harbor, July 16 (Minot). The larva is a leaf-roller on apple, etc. A. suBAEQUANA Zell. S. W. Harbor ; N. E. Harbor (Minot), July 6-13. Epiblema Hiibner E. suFFusANA Zell. N. E. Harbor, July 4— Aug. 24. The larva feeds on the buds and flowers of the rose. EucosMA Hiibner E. DORSisiGNATANA Clem. Salisbury Cove; X. E. Harbor, Aug. 7-25. Larva feeds in roots of goldenrod. E. siMiLANs Clem. N. E. Harbor, Sept. 24 (Minot). Thiodia Hiibner T. ocHROTERMiNANA Kcarf. N. E. Harbor, Aug. 5 (Minot). Gypsonoma Meyrick G. FAscioLANA Clem. N. E. Harbor, July 13 (Minot). THE MOUNT DESERT EEGION 55 Olethreutes Hiibner 0. BiPARTiTANA Clem. N. E. Harbor; Salisbury Cove, July 1- Aug. 26. 0. CAPEEANA Hbn. N. E. Harbor, July 22 (Minot). 0. FuscALBANA Zell. Eclio Lake ; N. E. Harbor, July 12- Aug. 25. 0. CAMPESTEANA Zell. {dealbana auct.). S. W. Harbor, July 15. Larva feeds on cherry. 0. ALBEOLANA Zell. Salisbury Cove, Aug. 7. The larva is a leaf-roller on white birch. 0. HEMiDESMA Zcll. Salisbury Cove, Aug. 7. The larva webs the leaves and flowers of Spiraea. O. coNSTELLATANA Zcll. S. W. Harbor, June 18. 0. ALBiciLiANA Fcm. Salisbury Cove, July 23. The larva is purple, a leaf -roller on Spiraea. Cymolomia Lederer (Exartema Clemens) C. FASciATANA Clcm. Salisbury Cove, Aug. 7. The larva feeds on Rumex. C. oLivACEANA Fern. Salisbury Cove, Aug. 7. C. ZELLEEiANA Fcm. Salisbury Cove, Aug. 7. The larva crumples the leaves of white birch. Sparganothis Hiibner S. iRROEEA Rob. N. E. Harbor, July 16-Aug. 20 (Minot). S. suLFUEEANA Clcm. Bar Harbor; Green Mt., July 21-25. The larva feeds on willow, strawberry, etc. S. EETicuLATANA Clcm. N. E. Harbor, Sept. 4 (Minot) ; Salis- bury Cove, Aug. 25 (Dahlgren). The larva feeds on oak, maple, pear, rose, etc. Argyrotoxa Stephens A. ALBicoMANA Clcm. N. E. Harbor; Salisbury Cove, July 18- Aug. 7. The larva feeds on rose. A. cuEVALANA Kcarf. N. E. Harbor, Aug. 11 (Minot). Peronea Curtis P. EFFRACTANA Frocl. N. E. Harbor, July 16 (Minot). The larva feeds on poplar, willow, and birch. P. VAEiANA Fern. N. E. Harbor, July 30- Aug. 15 (Minot). 56 BIOLOGICAL SURVEY OF Harmologa Meyrick H. FUMiFERANA Clem. The spruce bud-worm. N. E. Harbor, July 27, 1911. Sometimes very injurious to the spruce. It was especially abundant in 1914. EuLiA Hiibner E. MiNisTRANA Linu. Bar Harbor; N. E. Harbor; S. W. Har- bor, June 16-July 15. The larva is a general feeder, fold- ing the leaves of trees and shrubs. E. QUERCiFOLiANA Fitcli. Bar Harbor, June 24. The larva feeds on oak. TORTRix Linnaeus T. ALLENiANA Fcm. Bar Harbor, July 19. The larva is a general feeder. Archips Hiibner (Cacaecia Hiibner) A. puRPURANA Clem. Green Mt., July 27. The larva feeds on geranium, etc. A. ROSEANA Harr. Bar Harbor, July 11. The larva feeds on rose, apple, etc. A. cERASivoRANA Fitch. S. W. Harbor; Salisbury Cove, July 27-Aug. 1. The larvae are social, forming large ugly nests on the wild cherry. A. PERsicANA Fitch. Bar Harbor, June 15. The larva feeds on various plants. A. MELALEUCANA Walk. Bar Harbor; N. E. Harbor, June 11- July 16. The larva feeds on Trillium. Phaloniidae Pharmacis Hiibner P. viTELLiNANA Zcll. N. E. Harbor ; Salisbury Cove, July 16- Sept. 5. • Phalonia Hiibner P. BUNTEANA Rob. N. E. Hai'bor, July 31 (Miiiot) . The larva feeds on Lactuca. P. EDUANA Kearf. N. E. Harbor; Bar Harbor, Aug. 5-16. Pyralididae. Snout moths Aphomia Hiibner A. sociELLA Linn. Bar Harbor, July (Moore). The larva lives in nests of bumblebee and wasps. THE MOUNT DESERT EEGION 57 Desmia Westwood D. FENERALis Hbii. N. E. Harbor, Aug. 10 (Minot). In the absence of grape, the larva will feed on the evening prim- rose. Blepharomastix Lederer B. sTENiALis Guen. N. E. Harbor, July 8-20 (Minot). EvERGESTis Hiibner E. sTRAMiNALis Hbn. The 'Purple-backed cabbage worm.' N. E. Harbor, Aug. 9 (Minot). NoMOPHiLA Hiibner N. NOCTUELLA Schiff. Commou, June-Sept. The larva feeds on Polygonum, etc. Phlyctaenia Hiibner P. TERREALis Trcit. N. E. Harbor; S. W. Harbor, June 24- July 26. The larva feeds on Solidago. P. EXTRicALis Guen. S. W. Harbor, July 10. The larva is a leaf -roller on alder. P. TERTiALis Guen. Salisbury Cove; N. E. Harbor, July 27- Sept. 3. The larva lives in the pith of elder. P. FUMALis Guen. Salisbury Cove, July 24- Aug. 25. Pyrausta Schrank P. PERTEXTALis Ledr. Eagle Lake; N. E. Harbor, July 18- Aug. 5. P. suBMEDiALis Grt. N. E. Harbor, July 18. P. FUNEBRis Strom. Bar Harbor; N. E. Harbor; S. W. Har- bor, June 21-July 10. The larva lives on the basal leaves of Solidago. P. FUMOFERALis Hulst. Loug Poud, Juue 27. Nymphula Schrank N. icciusALis Walk. S. W. Harbor, July 28. The larva (lives) on pondweed, Potamogeton, and other aquatic plants. N. MACULALis Clem. Bar Harbor; Salisbury Cove, Aug. 14- 25. The larva feeds on the water lilies. N. ALLioNEALis Walk, race itealis Walk. Bar Harbor, Aug. 16. 58 BIOLOGICAL SURVEY OF Geshna Dyar G. PRiMORDiALis Dvar. N. E. Harbor, July 17 (Minot). EuRRHYPARA Hiibner E. URTicATA Linn. Salisbury Cove, July, 1926 (Dahlgren). The larva feeds on nettle. A European species first re- corded from Nova Scotia. SCOPARIA Haworth S. BASALis Walk. N. E. Harbor; Salisbury Cove, July 31- Aug. 25. S. LUGUBRALis Walk. Salisbury Cove, Aug. 25 (Dahlgren). Pyralis Linnaeus P. FARiNALis Linn. Meal moth. N. E. Harbor; Salisbury Cove, July 6-Aug. 27. Infests meal and stored grain. Crambinae Argyria Hiibner A. NIVALIS Drury. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 20-25. Crambxjs Fabrieius C. AGiTATELLus Clem. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 24-Aug. 20. C. ALBocLAVELLus Zell. N. E. Harbor ; Salisbury Cove, July 22-Aug. 7. The larva feeds on grasses. C. ALBELLus Clem. N. E. Harbor; S. W. Harbor, July 18-22. The larva feeds on grasses. C. BiDENs Zell. S. W. Harbor, July 28. C. FLORiDus Zell. N. E. Harbor, July 8-Aug. 20 (Minot). C. GiRARDELLUs Clem. N. E. Harbor, Aug. 11-Sept. 11 (Minot). C. HORTUELLus Hbii. racc TOPiARius Grt. Common, June 24- July 17. C. LEACHELLUS Ziuck. N. E. Harbor, Aug. 24 (Minot). C. LUTEOLELLus Clcm. S. W. Harbor, June 24. C. MUTABiLis Clem. N. E. Harbor, July 16-Aug. 20. The larva feeds on grass. THE MOUNT DESERT REGION 59 C. PRAEFESTELLus Ziiick. N. E. Harbor, Aug. 20 (Minot). C. PERLELLus Scop. racG innotatelliis Walk. N. E. Harbor, July 1-Aug. 29 (Minot). The larva feeds on grasses. C. RARicoLELLus Zcll. N. E. Harbor, Aug. 9-20 (Minot). The larva feeds on grass and sorrel. C.TRisECTus Walk. N. E. Harbor, Aug. 23 (Minot). The larva feeds on grasses. C. UNisTRiATELLA Pack. Salisbury Cove, Aug. 25 (Dahlgren). C. vuLGivAGELLus Clem. N. E. Harbor, Sept. 6 (Minot). Tetralopha Zeller T. ASPERATELLA Clem. N. E. Harbor; Salisbury Cove, July 15-Aug. 25. The larva feeds on oak, maple, elm, etc. Myelois Hiibner M. OBNUPSELLA Hulst. N. E. Harbor, Aug. 20 (Minot). AcROBASis Zeller A. BETULELLA Hulst. Salisbury Cove, July 25. The larva feeds on white birch. A. iNDiGENELLA Zcll. 'Apple leaf crumpler.' N. E. Harbor, Aug. 31 (Minot). A. RUBRiFASCiELLA Pack. N. E. Harbor, Aug. 15 (Minot). The larva feeds on alder. Glyptocera Eagouot G. coNsoBRiNELLA Zcll. Bar Harbor; X. E. Harbor, July 10- 16. Meropteba Grots M. PRAVELLA Grt. Salisbury Cove; N. E. Harbor, July 16- Aug. 10. The larva forms a web between two leaves of willow. M. uNicoLORELLA Hulst. N. E. Harbor ; Salisbury Cove, July 21-Aug. 25. Salebria Zeller S. coNTATELLA var. QuiNQUEPUNCTELLA Grt. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), June 29-Aug. 7. The larva feeds on locust, forming a web between two leaves. 60 BIOLOGICAL SURVEY OF Laodamia Ragonot L. FuscA Haw. Salisbury Cove, Aug. 25 (Dahlgren). The larva feeds on willow and Vaccinium. Canarsia Hulst C. uLMiARRosoRELLA Clem. Salisbury Cove; N. E. Harbor, Aug. 7-Sept. 5. The larva is found on elm. Homoeosoma Curtis H. MuciDELLUM Rag. N. E. Harbor, Sept. 5 (Minot). The larva lives in the flowers of Gnaphalium. Peoria Eagonot P. APPROxiMELLA Walk. N. E. Harbor, July 26 (Minot). Pterophoridae Platyptilia Hiibner P. PALLiDACTYLA Haw. Commou, July 10-25. The larva bores into stems of yarrow. OxYPTiLUS Zeller 0. TENuiDACTYLus Fitcli. Salisbury Cove, July 15. The larva feeds on blackberry. OiDAEMATOPHORUS Wallengreu {Pterophorus auct.) 0. HOMODACTYLus Walk. N. E. Harbor; Salisbury Cove, July 22-Aug. 25. The larva feeds on Solidago. Geometridae. Measuring-worms Nemoria Hiibner N. RUBRiFRONTARiA Pack. Bar Harbor, June 18. Synchlora Guenee S. AERATA Fab. Near Bar Harbor (Burton). The larva feeds on blackberry and raspberry. AciDALiA Treitselike {Synelys Hulst) A. JUNCTARIA Walk. S. W. Harbor; N. E. Harbor (Minot), June 21-July 23. A. ENUCLEATA Gucu. Salisbury Cove, July 27- Aug. 25 (Dahl- gren). A. ENUCLEATA form ADORNATA Prout. Commou, July 7-20. The larva feeds on blueberry, Rhexia and Galium. THE MOUNT DESERT REGION 61 Ptychopoda Curtis P. INDUCTATA Gueii. Salisbury Cove, July 7- Aug. 25 (Dahl- gren). Pleuroprucha Moschler P. iNsuLSARiA Guen. N.E. Harbor, July 20-30 (Minot). The larva feeds on oak, Galium, etc. CoSYMBiA Hiibner C. LUMEN ARIA Hbii. N. E. Harbor ; Salisbury Cove; Bar Har- bor, Aug. 7-12. The larva feeds on birch, Vaccinium, and Comptonia. Trechodesia Warren T. ALBOviTTATA Gueu. N. E. Harbor (Minot) ; Long Pond, July 8-16. LOBOPHORA Curtis L. NiviGERATA Walk. N. E. Harbor, Aug. 15 (Minot). AcASis Duponchel A. viRiDATA Pack. S. W. Harbor, June 24. Calocalpe Hiibner (Hydria Hiibuer) C. UNDULATA Liuu. S. W. Harbor, June 16-July 30. The larvae are gregarious, webbing together the leaves on the terminal shoots of the wild cherry. Lygris Hiibner L. DivERSiLiNEATA Hbii. Bar Harbor; Salisbury Cove, Aug. 10-Sept. 9. The larva feeds on Ampelopsis. L. DESTiNATA Mocsch. Salisbury Cove, July 27 (Dahlgren). L. EXPLANATA Walk. N. E. Harbor; Salisbury Cove, Aug. 15-20. L. EXPLANATA form cuNiGERATA Walk. N. E. Harbor, July 31-Aug. 16 (Minot). L. TESTATA Linn. Salisbury Cove, Sept. 1 (Dahlgren). The larva feeds on birch, wdllow, etc. DiACTiNiA Warren D. siLACEATA Hbu. Bar Harbor; N. E. Harbor, Aug. 12-21. "^z * v^*y 62 BIOLOGICAL SURVEY OF Thera Stephens T. coNTRACTATA Pack. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), Sept. 23-27. T. GEORGii Hulst. N. E. Harbor, Aug. 16 (Minot). Dysstroma Hiibner D. TRUNCATA Hufii. N. E. Harbor ; S. W. Harbor; Salisbury Cove, July 20-Sept. 8. The larva feeds on strawberry. Hydriomena Hiibner H. CAERULATA Fab. (pluviata Guen.). N. E. Harbor; S. W. Harbor; Echo Lake, July 6-17. The larva feeds on alder. H. TRANSFiGURATA Swett. Bar Harbor, June 13. Xanthorhoe Hiibner X. LACUSTRATA Gueu. N. E. Harbor; Echo Lake, July 12- Aug. 29. The larva feeds on blackberry, birch, etc. X. DESiGNATA Hufu. Witcli Hole Pond; Salisbury Cove, July 30-Aug. 10. The larva feeds on Cruciferae, wild and culti- vated. X. FERRUGATA Clerk. N. E. Harbor; S. W. Harbor; Bar Har- bor, July 15-24. The larva feeds on Polygonum. X. FERRUGATA form uNiDENTARiA Haw. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 25- Aug. 10. X. iDUATA Guen. S. W. Harbor, July 10-15. Orthonama Hiibner 0. OBSTRiPATA Fab. ifluriata Hbn.). N. E. Harbor; S. W. Harbor, July 15-Aug. 15. Larva feeds on elm, Polygonum, etc. Entephria Hiibner E. AURATA Pack. N. E. Harbor, July 26-Aug. 24 (Minot). Spargania Guenee S. MAGNOLiATA Gucii. Bar Harbor, Aug. 16. EuPHYiA Hiibner E. iNTERMEDiATA Gueu. N. E. Hai'bor ; Salisbury Cove, July 27-Aug. 15. The larva feeds on jewel weed (Impatiens). E. MULTiFERATA Walk. N. E. Harbor, June 29-Aug. 5 (Minot). The larva feeds on Polygonum and Epilobium. E. LucTUATA var. OBDUCTATA Mocscli. S. W. Harbor, July 16. THE MOUNT DESERT REGION 63 Mesoleuca Hiibner M. EUFiciLLATA Giieii. N. E. Harbor, Aug. 9 (Alinot). The larva feeds on birch. EuLYPE Hiiliiier (Eheumaptera auct.) E. HASTATA Linn. Echo Lake, June 19. E. HASTATA var. GOTHiCATA Gucu. Common ; unusually abun- dant in 1923. June 13-July 20. The larva feeds on birch, willow, blueberry, etc. Venusia Curtis V. CAMBRicA Curt. N. E. Harbor; S. W. Harbor; Salisbury Cove, June 22-Aug. 24. The larva feeds on mountain ash (Pyrus americana). Hydrelia Hiibner H. iNORNATA Hulst. Bar Harbor, July 24. EuBULE Hiibner E. MENDiCA Hbn. Common, June 21-July 26. The larva feeds on violets. Eupithecia Curtis E. ANTicARiA Walk. S. W. Harbor; Salisbury Cove, July IS- IS. E. GEMiNATA Pack. N. E. Harbor, Aug. 9-19 (Minot). The larva feeds on the flowers of the yarrow, goldenrod, etc. E. iNTERRUPTOFASciATA Pack. N. E. Harbor ; S. W. Harbor; Salisbury Cove, July 8-Sept. 24. The larva feeds on juniper. E. RussELiATA Swctt. N. E. Harbor, June 22 (Minot). E. STEATTONATA Pack. S. W. Harbor, July 21. E. TAYLORATA Swett. N. E. Harbor ; Salisbury Cove, June 29- Aug. 1. HoRiSME Hiibner H. iNTESTiNATA Gueu. N. E. Harbor; Salisbury Cove, July 27-Sept. 5. ISTURGIA Hiibuer I. AMiTARiA Guen. (faxoni Minot). S. AY. Harbor; Echo Lake, June 18-22. The larva feeds on bearberrv. 64 BIOLOGICAL SURVEY OF EuFiDONiA Packard E. NOTATARiA Walk. S. W. Harbor, June 16. The larva feeds on larch, pine, etc. Orthofidonia Packard 0. TiNCTARiA Walk. N. E. Harbor, July 9 (Minot). Bapta Stephen B. SEMiCLARATA Walk. S. W. Harbor, June 25. B. VESTALIATA Gucu. Joi'daii Pond; N. E. Harbor, June 10- July 8. The larva feeds on apple, oak, etc. Physostegania Warren P. pusTULARiA Guen. N. E. Harbor ; Salisbury Cove, July 27- Aug. 11. The larva feeds on maple, cranberry, etc. GuENERiA Packard G. BASiARiA Walk. Long Pond, July 16. Cabera Treitsclike C. VARioLARiA Gueu. N. E. Harbor; Salisbury Cove, July 16- 22. The larva feeds on willow. C. ERYTHEMARiA Gucu. N. E. Harbor, July 10 (Minot). Philobia Duponehel P. ULSTERATA Pcars. N. E. Harbor, July 12 (Minot). Macaria Curtis M. GRANiTATA Gueu. Bar Harbor; N. E. Harbor; Long Pond, July 2-Aug. 4. Hesperumia Packard H. suLPHURARiA Pack. N. E. Harbor (Minot); Salisbury Cove, July 27-Aug. 23. Itame Hiibner (Diastictis Hiibner) 1. ARGiLLACEARiA Pack. N. E. Harbor, July 20 (Minot). I. BRUNNEATA Thunb. S. W. Harbor, June 21-July 13. I. AN AT ARIA Swett. N. E. Harbor (Minot) ; Salisbury Cove, July 13-Aug. 26. Homochlodes Hulst H. FRiTALLARiA Gucii. S. W. Harbor, July 15. THE MOUNT DESERT EEGION 65 Cabipeta Walker C. ANGusTioRATA Walk. Bar Harbor, Aug. 12. The larva feeds on white pine. C. DiviSATA Walk. Bar Harbor; N. E. Harbor; Salisbury Cove, July 20-Aug. 23. The larva feeds on hemlock. C. piNiATA Pack. Salisbury Cove, July 18. Nepytia Hulst N. CANosAEiA Walk, {pulcheria Minot). N. E. Harbor; Echo Lake, Aug. 19-Sept. 11. The larva feeds on pine, spruce, and larch. Cleora Curtis C. iNDicATARiA Walk. Commou, June 21-July 20. C. LAEVARiA Guen. N. E. Harbor, June 26- July 6 (Minot). The larva feeds on willow, wild cherry, etc. Athalopteka Hulst A. ANTiCARiA Walk. S. W. Harbor, June 20. EcTROPis Hiibner E. CREPUScuLAEiA D. & S. Jordau Pond, June 10. The larva feeds on apple, pear, elm, maple, etc. Amphidasis Treitschke A. coGNATARiA Gucu. Bar Harbor; Salisbury Cove (Dahl- gren), June 17-July 27. The larva feeds on various orchard and forest trees. Cingilia Walker C. CATENARiA Drury. Ironbound Isl. (Blaney). The larva feeds on Vaccinium, Eubus, Myrica, Carex, etc. Anagoga Hiibner H. PULVERARiA Liuu. Jordau Pond ; Long Pond ; June 10-July 16. The larva feeds on maple, willow, birch, etc. SiCYA Guenee S. MACULARiA Harr. Salisbury Cove, Aug. (Dahlgren). S. MACULARIA var. soLFATARiA Gucu. N. E. Harbor, July 13 (Minot). 66 BIOLOGICAL SURVEY OF Ellopia Treitschke E. ENDROPiAKiA Gi't. & Rob. N. E. Harbor, June 20 (Minot). The larva feeds on oak. etc. E. FiscELLARiA Guen. N. E. Harbor; S. W. Harbor; Bar Har- bor, Sept. 6-13. E. FISCELLARIA form joHNsoNi Swett. N. E. Harbor; S. W. Harbor; Bar Harbor, Sept. 8-29. E. FISCELLARIA form PEccATARiA Swett. Bar Harbor, Sept. 13. Campaea Lamarck C. PERLATA Guen. Bar Harbor; Long Pond; N. E. Harbor, June 11-Aug. 24. Ennomos Treitschke E. MAGNARius Gueu. Salisbury Cove (Dahlgren) ; N. E. Har- bor (Minot), Sept. 1-24. The larva feeds on birch, maple, elm, etc. Xanthotype Warren X. cROCATARiA Fab. var. caelaria Hulst. Echo Lake, July 12. The larva feeds on strawberry, currant, and gooseberry. Plagodis Hubner P. sERiNARiA H.-Sch. Joi'dau Pond, June 10. Hyperetis Guenee H. AMiCARiA H.-Sch. Long Pond; N. E. Harbor, July 16-26. The larva feeds on alder, beech, birch, oak, etc. Nematocampa Guenee N. LiMBATA Haw. Salisbury Cove, Aug. 25 (Dahlgren). The larva feeds on apple, maple, etc. GoNODONTis Hubner G. HYPOCHRARIA H.-Scli. Bar Harbor, June 8. The larva feeds on apple, etc. G. DUARiA Guen. N. E. Harbor, June 26 (Minot). The larva feeds on oak. Euchlaena Hubner E. OBTUSARIA Hbn. N. E. Harbor, July 18-22 (Minot). The larva feeds on jewel weed (Impatiens). THE MOUNT DESERT EEGION 67 E. EFFECTA Walk. N. E. Harbor, July 31 (Minot). The larva feeds on rose. E. JOHNSONARIA Fitcli. Salisbury Cove, July 16. The larva feeds on oak, cherry, etc. E. SEERATA Drury. Salisbury Cove, July 24 (Dahlgren). E. viNULENTARiA Grt. & Rob. S. W. Harbor, June 25. Metanema Guenee M. iNATOMAEiA Gueu. Bar Harbor, July 20. The larva feeds on poplar. M. DETERMiNATA Walk. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 25- Aug. 24. Priocycla Guenee P. ARMATARiA H.-Sch. N. E. Harbor, July 4 (Minot). The larva feeds on currant, birch, maple, apple, etc. Pero Herrich-Scliaeffer P. HONESTARius Walk. S. W. Harbor, July 15. The larva feeds on maple. P. MORRisoNARius Hy. Edw. S. W. Harbor; N. E. Harbor, July 15-Aug. 20. Apicia Guenee A. coNFusARiA Hbu. Bar Harbor (Burton) ; Salisbury Cove, Aug. 7. The larva feeds on clover. A. coNFUSARiA form METROCAMPARiA Gueu. Salisbury Cove, July 16. Sabulodes Guenee S. LORATA Grt. N. E. Harbor, July 30 (Minot). The larva feeds on sweet fern, Comptonia. S. TRANsvERSATA Drury. N. E. Harbor; Bar Harbor; Salis- bury Cove, Aug. 17-Sept. 13. The larva feeds on maple, currant, apple, etc. S. TRANSVERSATA Drury form incurvata Guen. N. E. Harbor (Minot); Salisbury Cove (Dahlgren), Aug. 15-Sept. 1. NOTODONTIDAE Pheosia Hiibner P. RiMosA Pack. Bar Harbor; N. E. Harbor (Minot), July 10-Aug. 23. The larva feeds on poplar. 68 BIOLOGICAL SURVEY OF LOPHODONTA Packard L. ANGULOSA Abb. & Sm. Salisbury Cove, July 24-Aug. 15 (Dahlgren). The larva feeds on oak. L. FERRUGiNEA Pack. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 10-16. The larva feeds on birch. Symmerista Hiibner S. ALBiFRONS Abb. & Sm. N. E. Harbor, July 18 (Minot). The larva feeds on oak, maple, etc. Dasylophia Packard D. ANGUiNA Abb. & Sm. Salisbury Cove, July (Dahlgren). The larva feeds on locust. Heterocampa Doubleday H. GUTTiviTTA Walk. N. E. Harbor, June 26 (Minot). The larva is popularly known as the 'saddle prominent' and is often injurious to maples and poplars. ScHizuRA Doubleday S. UNICORNIS Abb. & Sm. N. E. Harbor, Aug. 11 (Minot). The larva feeds on orchard and shade trees. Cerura Schrank C. BOREALis Bdv. Bar Harbor, Sept. The larva feeds on willow. Gluphisia Boisduval G. sEPTENTRioNis Walk. N. E. Harbor, Aug. 19 (Minot). The larva feeds on willow, poplar, and birch. Lymantriidae (Liparidae) NoTOLOPHUS Germar N. antiqua Linn. Old tussock-moth. Bar Harbor. The larva feeds on most of the orchard and forest trees. Hemerocampa Dyar H. LEucosTiGMA Abb. & Sm. White-marked tussock-moth. N. E. Harbor (Minot); Salisbury Cove (Dahlgren), Aug. 7-Sept. 24. The larva feeds on various fruit and shade trees. THE MOUNT DESERT REGION 69 PORTHETRIA Hiilmer P. DisPAE Linn. Gj'psy moth. Reported in 1919 from Tre- mont, Mt. Desert, and Eden, but not seen by the writer. EuPROCTis Hiibner E. CHEYsoRRHOEA Linn. Brown-tail moth. Abundant during 1911-1914, but has now practically disappeared. One speci- men was taken at Salisbury Cove, July 16, 1923. Stilpnotia Westwood S. SALicis Linn. Satin moth. Salisbury Cove, Aug. 6, 1926 (Dahlgren). First reported in the vicinity of Boston in 1920, it has gradually spread northeastward. This is the most northerly record at the present time. The larva feeds on willow and poplar. NOCTUIDAE Rhodophora Guenee R. FLORIDA Guen. Primrose moth. Salisbury Cove, July 17 ; Ironbound Isl. (Blaney). The larva feeds on the buds and seed capsules of the evening primrose. Porosagrotis Smith P. VETUSTA Walk. Salisbury Cove, Sept. 1 (Dahlgren). EuxOA Hiibner E. PERPOLiTA Morr. S. W. Harbor, Sept. 8. E. MEssoRiA Harr. Salisbury Cove; N. E. Harbor, Aug. 15- Sept. 6. The larva is one of the most troublesome of the early cutworms. E. MOLLIS Walk. N. E. Harbor, Aug. 25 (Minot). E. EEDiMicuLA Morr. Salisbury Cove, Aug. (Dahlgren). E. ocHROGASTER Gucu. Salisbury Cove, Aug. (Dahlgren). Feltia Walker F. vENERABiLis Walk. Bar Harbor; Salisbury Cove; N. E. Harbor, Sept. 1-24. F. DucENs Walk, {subgothica auct.). N. E. Harbor; Salis- bury Cove, Aug. 15-30. F. HERiLis Grt. N. E. Harbor; Salisbury Cove, Aug. 18-30. LIBRARYi=o 70 BIOLOGICAL SURVEY OP Agrotis Ochsenheimer A. GENicuLATA Grt. & Rob. Salisbury Cove, Aug. (Dahlgren). A. YPsiLON Eott. Bar Harbor, July 22. The larva is one of the troublesome cutworms. A. c-NiGRUM Linn. N. E. Harbor; Salisbury Cove, Aug. 18- 30. The larva is one of the cutworms. A. BiCARNEA Guen. N. E. Harbor; Salisbury Cove, Aug. 15- Sept. 2. The larva is a troublesome cutworm. A. normania:n^a Grt. N. E. Harbor ; Salisbury Cove, July 31- Aug. 21. A. BAJA Fab. (smithi SnelL). N. E. Harbor; Salisbury Cove, Aug. 15-20. A. PLECTA Linn. S. W. Harbor, July 31. The larva feeds on lettuce, celery, etc. A. PHYLLOPHORA Grt. N. E. Harbor, July 27 (Minot). A. UNiMACULA Morr. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 27-Aug. 20. A. uNicoLOR Walk, {clmidestina Harr.). Bar Harbor; N. E. Harbor ; Salisbury Cove, July 8-Sept. 6. The larva is one of the troublesome cutworms, Lycophotia Hiibner L. ASTRiCTA Morr. N. E. Harbor; Salisbury Cove, July 31- Aug. 20. L. OCCULTA Linn. N. E. Harbor, July 19-27 (Minot). L. MARGARiTosA Haw. form SAUCiA Hbn. N. E. Harbor; Salis- bury Cove, Aug. 15-30. The larva is one of the injurious cutworms. Aplectoides Butler A. PRESsus Grt. S. W. Harbor, July 10. Apharetra Grote A. DENTATA Grt. Salisbury Cove, Aug. 7. Matuta Grote M. ELiMATA Guen. N. E. Harbor (Minot) ; Bar Harbor, July 17-Sept. 13. M. PRASiNA Fab. N. E. Harbor, July 19 (Minot). THE MOUNT DESERT REGION 71 Rhynchagrotis Smith R. BRUNNEicoLLis Grt. Salisbury Cove, Aug. 25 (Dahlgren). R. ANCHOCELioiDEs Gueii. S. W. Harbor, Sept. 8. R. GiLviPENNis Grt. S. W. Harbor; N. E. Harbor, July 30-31. EUEBETAGROTIS Smith E. ATTENTA Grt. N. E. Harbor; Salisbury Cove, July 22- Aug. 7. E. PERATTENTA Grt. N. E. Harbor, July 22 (Minot). SCOTOGRAMMA Smith S. TRiFOLii Rott. Salisbury Cove, Aug. 20 (Dahlgren). PoLiA Ochseiiheimer (Mamestra Ochs.) P. iMBRiFERA Gucu. N. E. Harbor, Aug. 4-15 (Minot). P. puRPURissATA Grt. N. E. Harbor; Salisbury Cove, July 15- Aug. 20. P. MEDiTATA Grt. Salisbury Cove, Aug. 15 (Dahlgren). P. CRiSTiFERA Walk. N. E. Harbor, July 22 (Minot). P. NiMBOSA Guen. Ironbound Isl. (Blaney). P. ADJUNCTA Bdv. Ironbound Isl. (Blaney). P. LEGiTiMA Grt. Salisbury Cove; N. E. Harbor; S. W. Har- bor, July 18-Aug. 18. The larva feeds on beans, cabbage, and other garden plants. P. LiLACiNA Harv. S. W. Harbor, July 15. P. RENiGERA Steph. N. E. Harbor ; Salisbury Cove, Aug. 15- 29. P. LOREA Guen. S. W. Harbor ; Salisbury Cove, July 10- Aug. 15. The larva feeds on strawberry, geranium, etc. P. OLIVACEA Morr. N. E. Harbor, Aug. 15 (Minot). Chabuta Walker C. siGNATA Walk. N. E. Harbor; Salisbury Cove, July 31- Aug. 17. Eriopyga Gueuee E. CRENULATA Butl. N. E. Harbor, Aug. 5 (Minot). E. CYNiCA Guen. Salisbury Cove, Aug. 20 (Dahlgren). E. VECORS Guen. N. E. Harbor, Aug. 5 (Minot). Oncocnemis Lederer 0. ATRiFASciATA Morr. S. W. Harbor, Sept. 6 ; Ironbound Isl. (Blaney). 72 BIOLOGICAL SURVEY OF LiTHOMOiA Hiibner L. soLiDAGiNis Hbn. {germana Morr.). Salisbury Cove (Dalil- gren); N. E. Harbor (Minot), Sept. 1-29. Xylotype Hampsoii X. CAPAX Grt. & Rob. Salisbury Cove (Dahlgren) ; N. E. Harbor (Minot), Sept. 1-24. EuBOTYPE Hampson E. coNFRAGosA Morr. {medialis Grt.). Salisbury Cove; S. W. Harbor, Aug. 15-Sept. 6. Harpaglaea Hampson H. PASTiLLACANs Morr. N. E. Harbor, Sept. 24-27 (Minot). Epiglaea Grote E. APiCATA Grt. Salisbury Cove, Aug. (Dahlgren). Conistra Hiibner C. iNcuLTA Grt. N. E. Harbor, Sept. 24 (Minot). Parastichtis Hiibner P. RALLA Grt. & Rob. N. E. Harbor, Aug. 11-Sept. 27 (Minot). Nephelodes Gueuee N. EMMEDONiA Cram, {mdnians Guen.). Common, July 13- Sept. 6. The larva feeds on Solidago, etc. N. EMMEDONIA form vioLANs Gueii. Salisbury Cove, Sept. 1 (Dahlgren). SiDERiDis Hiibner S. RUBEFACTA Mori'. Narrows, June 9. CiRPHis Walker C. PSEUDARGYRiA Gueu. N. E. Harbor, July 22 (Minot). C. MULTiLiNEA Walk. N. E. Harbor, July 22 (Minot). C. coMMOiDES Guen. Salisbury Cove, July 17-Aug. 25. C. iNSUETA Guen. S. W. Harbor, July 13. Neleucania Smith N. ALBiLiNEA Hbu. N. E. Hai'bor, Aug. 10 (]\[inot). The larva feeds on grasses and grain. THE MOUNT DESERT EEGION 73 Leucania Ochsenheimer L. LUTEOPALLENs Sm. Sv W, Harbor ; Salisbury Cove, July 13-iVug. 25. The larva feeds on grasses. CUCULLIA Scliraiik C. INTERMEDIA Spey. Salisbury Cove, Aug. (Dalilgren) ; Iron- bound Isl. (Blaney). C. coNVExiPENNis Grt. & Rob. N". E. Harbor, July 31-Aug. 25 (Minot). Atethmia Hiibiier A. PAMPiNA Guen. Echo Lake; Bar Harbor; X. E. Harbor, Sept. 7-24. Xanthia Ochsenheimer X. LUTEA Strom, (flavago Fab.). N. E. Harbor, Sept. 27 (Minot). Amphipyra Ochsenheimer A. pYRAMiDoiDEs Gueii. Cadillac Cliff, Sept. 13. The larva feeds on wild cherry, apple, poplar, etc. A. TEAGOPOGiNis Liuu. Salisbury Cove (Dalilgren) ; N. E. Harbor (Minot), Aug. 15-21. Septis Hiibner S. NiGRiOR Smith. Salisbury Cove, Aug. 15 (Dalilgren). S. LiGNicoLOR Guen. S. W. Harbor, July 20. S. vuLTuosA. S. W. Harbor (Mrs. Palmer). S. ARCTicA Bdv. Common, July 8-Sept. 10. The larva is one of the destructive cutworms. Trachea Ochsenheimer T. iLLOCATA Walk. N. E. Harbor, Sept. 27 (Minot). T. MACTATA Guen. N. E. Harbor, Sept. 6 (Minot). T. MODiCA Guen. Salisbury Cove; N. E. Harbor (Minot), Aug. 7-30. Euplexia Stephens E. LuciPARA Linn. N. E. Harbor, June 26 (Minot). The larva feeds on birch, Viburnum, etc. 74 BIOLOGICAL SURVEY OF Perigea Guenee P. VECORS Guen. {remissa Walk.). S. W. Harbor; N. E. Har- bor, July 13-Aiig. 23. Oligia. Hiibner 0. BRiDGHAMi Grt. & Eob. N. E. Harbor, Aug. 17 (Minot). Agroperina Hampson A. DUBiTANs Walk. S. W. Harbor; Salisbury Cove; N. E. Harbor, July 10-Sept. 4. Sidemina Staudinger S. DEVASTATOR BracG. Common, July 20-Aug. 15. The larva is one of the destructive cutworms. Luperina Boisduva] L. STiPATA Morr. N. E. Harbor, July 31 (Minot). Chutapha Moore C. PERicuLosA Guen. N. E. Harbor, Aug. 13-19 (Minot). C. PERICULOSA form v-brunneum Grt. N. E. Harbor; Salis- bury Cove, Aug. 1-19. Callopistria Hiibner C. monetifera Guen. S. W. Harbor; Salisbury Cove, June 21-Aug. 9. Chytonix Grote C. PALLiATRicuLA Gueu. form lASPis Guen. N. E. Harbor, July 12 (Minot). Leuconycta Hampson L. DiPTEROiDES Gueu. N. E. Harbor, Aug. 18 (Minot). Agriopodes Hampson A. FALLAX H.-Sch. S. W. Harbor; N. E. Harbor (Minot), July 15-30. The larva feeds on poplar and Viburnum. A. LEPiDULA Grt. N. E. Harbor (Minot); Salisbury Cove (Dahlgren), July 18-24. Acronycta Ochsenheimer A. iNNOTATA Guen. N. E. Harbor ; S. W. Harbor, July 15-20. A. DACTYLiNA Grt. Bar Harbor ; N. E. Harbor ; S. W. Harbor, July 16-28. The larva feeds on alder, birch and willow. A. POPULi Riley. Ironbound Isl. (Blaney). THE MOUNT DESERT REGION 75 Delta Saalm D. RAMosuLA Guen. N. E. Harbor, Aug. 15 (Minot). Caradrina Oehsenheimer C. MULTiFERA Walk. N. E. Harbor, Aug. 18-Sept. 5 (Minot). Balsa Walker B. MALANA Fitcli. Bar Harbor, June 22. The larva feeds on apple. MONODES Guenee M. FESTivoiDES Gucu. N. E. Harbor, June 29 (Minot). Apamea Oehsenheimer A. VELATA Walk. N. E. Harbor, July 22 (Minot). A. NicTiTANs Linn. Common, Aug. 15-Sept. 15. A. NICTITANS var. AMERICANA Speyer. Common, Aug. 26-Sept. 27. The larva bores into various grasses. GoRTYNA Oehsenheimer G. iMMANis Guen. Salisbury Cove, Aug. 15 (Dahlgren). Papaipema Smith P. PTERisii Bird. Salisbury Cove, Sept. 1 (Dahlgren). Ipimorpha Hiibner I. PLEONECTUSA Grt. Salisbury Cove, Aug. 15 (Dahlgren). CosMiA Oehsenheimer C. ORiNA Guen. Salisbury Cove, Aug. 18 (Dahlgren). Calamia Hiibner C. iNQuiNATA Guen. Salisbury Cove, Aug. 7. LiTHACODiA Hiibner L. ALBiDULA Guen. S. W. Harbor; Salisbury Cove, June 21- Aug. 7. L. coNciNNiMACULA Gueu. N. E. Harbor, Sept. 5 (Minot). L. BELLicuLA Hbii. Salisbury Cove, July 15. L. CARNEOLA Gueu. Bar Harbor; Salisbury Cove, June 11- Aug. 7. L. APicosA Haw. N. E. Harbor, July 24 (Minot). L. MuscosuLA Guen. Salisbury Cove; N. E. Harbor, Aug. 7-15. 76 BIOLOGICAL SURVEY OF Marathyssa Walker M. iNFiciTA Walk, N. E. Harbor, July 13 (Miiiot). Catocala Schrank C. ANTiNYMPHA Hbii. N. E. Harbor (^linot) ; Salisbury Cove (Dahlgren), Sept. 1-15. C. CEROGAMA Gueii. N. E. Harbor, Aug. 15 (Minot). C. EELicTA Walk. Ironbound Isl. (Blaney). The larva feeds on birch and poplar. C. UNijuGA Walk. S. W. Harbor, Sept. 5 (Alexander). C. coNcuMBENs Walk. Salisbury Cove, Sept. 10 (Dahlgren). The larva feeds on willow and poplar. C. GRACILIS Edw. N. E. Harbor, July 11-Aug. 15 (Minot). C. GRACILIS form sordida Grt. Bar Harbor, July 22. C. ULTRONIA Hbn. N. E. Harbor, Sept. 5 (Minot). The larva feeds on apple, plum, wild cherry, etc. C. PRAECLARA Grt. & Rob. N. E. Harbor, Sept. 6 (Minot). EuPARTHENOS Grote E. NUBiLis Hbn. Bar Harbor; Salisbury Cove, June 11-July 25. The larva feeds on locust. Paballelia Hiibner P. BiSTRiARis Hbn. N. E. Harbor; Green Mt., July 17-25. The larva feeds on maple. Caenurgia Walker (Drasteria auct.) C. ERECHTEA Cram. Common, July-Aug. The larva feeds on grasses, clover, etc. C. CRASSiuscuLA Haw. Common, July-Aug. The larva feeds on grasses. Panthea Hiibner P. EURCiLLA Pack. Salisbury Cove, July 10 (Sanford). The larva feeds on larch and pine. AuTOGRAPHA Hiibner A. FALciFERA Kby. form simplex Guen. Salisbury Cove ; Nar- rows ; Bar Harbor, Sept. 1-13. The larva feeds on a vari- ety of cruciferous plants. THE MOUNT DESERT REGION ( I A. EPiGAEA Grt. Ironbonnd Isl. (Blaney). A. SELECTA Walk. N. E. Harbor, Aug. 29 (Minot). A. ocTOSCRiPTA Grt. S. W. Harbor, July 29. A. RECTANGULA Kby. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 30- Aug. 10. A. u-AUREUM Guen. {vaccinii H. Edw.). N. E. Harbor (Minot) ; Salisbury Cove, July 18, 19. A. PRECATioNis Guen. N. E. Harbor, Aug. 13-24 (Minot). A general feeder on weeds. A. BiMACULATA Steph. N. E. Harbor, July 31- Aug. 11 (Minot). A. MAPPA Grt. & Rob. N. E. Harbor, Aug. 24 (Minot). A. puTNAMi Grt. Narrows, June 9. A. coNTEXTA Grt. S. W. Harbor, July 10-15. A. AMPLA Walk. Echo Lake; N. E. Harbor (Minot), July 17- Aug. 11. Plusia Oclisenheimev P. AEREoiDEs Grt. N. E. Harbor, July 22-29 (Minot). P. BALLUCA Geyer. N. E. Harbor, July 26-31 (I\Iinot). EosPHOROPTERYX Dyar E. THYATYRoiDEs Gueu. N. E. Harbor, Aug. 14 (Minot). Abrostola Ochsenheimer A. FORMOSA Grt. N. E. Harbor, July 31 (Minot). Eaphia Hiibner R. FRATER Grt. N. E. Harbor (Minot) ; Salisbury Cove (Dahl- gren), July 16-27. The curious larva feeds on poplar and willow. ScOLiOPTERYX Germar S. LiBATRix Linn. Bar Harbor, June 22. The larva feeds on willow and poplar. EivuLA Guenee R. PROPiNQUALis Guen. N. E. Harbor ; Bar Harbor ; Salisbury Cove, July 17-Aug. 7. Pangrapta Hiibner P. DECORALis Hbn. Common, June 18-Aug. 7. 78 BIOLOGICAL SURVEY OF Metalestra Hiibner M. QUADRisiGNATA Walk, {cofitracta Walk.). N. E. Harbor, July 10-Aug. 24 (Minot). Epizeuxis Hubner E. AMEEiCALis GuGii. N. E. Harbor ; Salisbury Cove, July 3- Aug. 25. The larva feeds on clover. E. AEMULA Hbn. N. E. Harbor ; Salisbury Cove, July 30- Aug. 7. The larva is said to feed on spruce. E. LUBEicALis Geyer. N. E. Harbor; Salisbury Cove, July 17- Aug. 1. The larva feeds on grasses. Zanclognatha Lederer Z. oBSCURiPENNis Grt. N. E. Harbor; Salisbury Cove, July 1- Aug. 7. Hormisa Walker H. ABSORPTALis Walk. N. E. Harbor; Salisbury Cove, July 15-23. Philometra Grote P. METONALis Walk. Echo Lake; N. E. Harbor; Salisbury Cove, July 12-Aug. 7. Chytolita Grote C. PETREALis Grt. N. E. Harbor, July 4 (Minot). Eenia Guenee R. FLAviPUNCTALis Geycr. Salisbury Cove, Aug. 7. Bleptina Grote B. GARADRiNALis Gucu. Salisbury Cove, July 18. Phalaenophana Grote P. PYRAMUSALis Walk. N. E. Harbor, July 16 (Minot). Palthis Hubner P. ANGULALis Hbu. Bar Harbor ; Echo Lake, June 19-July 12. BoMOLOCHA Hiibner B. BALTiMORALis Gucu. N. E. Harbor, Aug. 15-18 (Minot). The larva feeds on maple. B. DECEPTALis Walk. S. W. Harbor ; Salisbury Cove, July 28- Aug. 25. B. TOREUTA Grt. N. E. Harbor, June 26 (Minot). THE MOUNT DESERT REGION 79 LoMANALTES Grote L. EDucTALis Walk. N. E. Harbor, July 30 (Minot). Plathypena Grote P. scABRA Fab. Bar Harbor, July 26. The larva feeds on clover, beans, etc. Hypena Schrank H. HUMiLis Harr. Salisbury Cove, Aug. 15 (Dahlgren). Arctiidae. Tiger moths Halisidota Hiibner H. MACULATA Harr. Ironbound Isl. (Blaney). Larva at Bar Harbor, Sept. 13. The larva feeds on willow, poplar, alder, and oak. H. TESSELLARis Abb. & Sm. Salisbury Cove; S. W. Harbor, July 18-20. The larva feeds on various shade and fruit trees. EuBAPHE Hiibner E. AURANTiACA var. RUBicuNDARiA Hbu. Commou, July 16- Aug. 24. The larva feeds on a variety of plants. E. AURANTIACA var. QuiNARiA Grote. Salisbury Cove, Aug. 7. E. iMMACULATA Rcak. N. E. Harbor (Minot) ; Salisbury Cove (Dahlgren), July 24-Aug. 23. Hyphoraia Hubner H. PARTHENos Harr. St. Lawrence tiger moth. S. W. Har- bor, June 22, from pupa; N. E. Harbor, July 7 (A. E. Allen); Bar Harbor, July 22; Salisbury Cove, July 18-22 (Dahlgren). Diacrisia Hiibner D. viRGiNiCA Fab. White Tiger moth. Bar Harbor; N. E. Harbor; S. W. Harbor, June 16- Aug. 15. The caterpillar is known as the 'woolly bear' and feeds on various plants including peas, beans, grasses, garden flowers, etc. IsiA Walker I. ISABELLA Abb. & Sm. S. W^. Harbor ; Salisbury Cove, June 20-July 10. The larva is called the 'banded wool bear' and feeds on clover, plantain, dandelion, etc. 80 BIOLOGICAL SURVEY OF Hyphantria Harris H. TEXTOR Harr. Northern f all-webworm. Bar Harbor ; Sal- isbury Cove; N. E. Harbor, June 19-July 18. The larvae form webs on various fruit and shade trees in late August and early September. ESTIGMENE Hiibner E. ACRAEA Drury. Bar Harbor; S. W. Harbor; Salisbury Cove, June 9-25. The larva is a general feeder. Apantesis Walker A. VIRGO Linn. Virgin tiger moth. Common, July 27-Aug. 16. The larva feeds on plantain, lettuce, etc. A. PARTHENicE Kby. N. E. Harbor, Aug. 29 (Minot). A. viRGUNCULA Gucii. Mauset ; S. AV. Harbor, June 21. Utetheisa Hiilnier U. BELLA Linn. Witch Hole Pond, Sept. 11; Ironbound Isl, (Blaney). The larva feeds on cherry, elm, etc. LiTHOSTIDAE Lixis Wallengren L. BicoLOR Grt. N. E. Harbor, Aug. 21 (Minot). Clemensia Packard C. ALBATA Pack. Bar Harbor, Aug. 16. EucHROMiiDAE (Syntomidae) . Day-moths Lycomorpha Harris L. PHOLus Drury. Bar Harbor; N. E. Harbor; Acedia Mt., July 24-Sept. 3, The moth frequents goldenrod ; the larva feeds on lichens. Ctenucha Kirby C. viRGiNiCA Charp. Common, July 13-Aug. 13. The larva feeds on grasses. Thyatiridae Pseudothyatira Grote P. CYMATOPHORiDEs form EXPULTRix Grt. N. E. Harbor, July 19 (Minot). The larva feeds on birch, maple, and oak. the mount desert region 81 Drepanidae Oreta Walker 0. iRRORATA Pack. N. E. Harbor, July 10 (Minot) ; Bar Har- bor (Burton). 0. ROSEA Walk. N. E. Harbor, July 10-Sept. 5 (Minot). The larva feeds on Viburnum. Drepana Sclirank D. ARCUATA Walk. S. W. Harbor, July 16. The larva is soli- tary and forms a web. It feeds on birch and alder. D. ARCUATA var. GENicuLA Grt. N. E. Harbor, July 19 (Minot). Falcaria Haworth F. BiLiNEATA Pack. N. E. Harbor, July 19 (Minot) ; Salisbury Cove, Aug. (Dahlgren). The larva feeds on birch. CiTHERONiiDAE. Royal moths Anisota Hiibner A. viRGiNiENsis Drury. Jordan Pond; Bar Harbor; S. W. Harbor, June 10-25. The larva feeds on oak and is known as the rosy-striped oak-worm. A. RUBicuNDA Fab. N. E. Harbor, June 26 (Minot). The larva is known as the green-striped maple-worm. Saturnhdae. Giant silk-worms Tbopaea Hiibner T. LUNA Linn. Luna moth. Bar Harbor; N. E. Harbor; Sal- isbury Cove ; Echo Lake, June 26-July 27. The larva feeds on birch, etc. Telea Hiibner T. POLYPHEMUS Cram. American silk-worm. Bar Harbor; S. W. Harbor, June 16-July 10. The larva feeds on oak, elm, linden, etc. Lasiocampidae Malacosoma Hiibner M. AMERICANA Fab. American tent caterpillar. N. E. Har- bor; Salisbury Cove; S. W. Harbor, July 18-25. The lar- vae form large tent-like webs on the apple, cherry, and other trees. 82 BIOLOGICAL SURVEY OF M. DissTRiA Hbn. Forest tent caterpillar. Salisbury Cove, Aug. 7 (Dalilgren). M. DISSTRIA var. sylvatica Harr. Salisbury Cove, Aug. 7 (Dalilgren). The larvae feed on birch, cherry, poplar, wil- low, etc. Sphingidae. Hawk moths Ceratomia Harris C. undulosa Walk. 'Waved sphinx.' Bar Harbor, July 29. The larva feeds on ash, lilac, etc. Sphinx Linnaeus S. CHERSis Hbn. 'Chersis sphinx.' Bar Harbor, July 10 (Pierson) ; Salisbury Cove (Dalilgren). The larva feeds on ash and lilac. S. KALMiAE Abb. & Sm. 'Laurel sphinx.' Common, July 30- Aug. 14. The larva feeds on laurel, ash and lilac. S. GORDius Cram. 'Gordian sphinx.' Bar Harbor, July. The larva feeds on huckleberry, birch, etc. S. DRUPiFERARUM Abb. & Sm. Salisbury Cove, Aug. (Dahl- gren). Lapara Walker L. BOMBYcoiDEs Walk. 'Bombyx sphinx.' Salisbury Cove, Aug. 6 (Dahlgren). Smerinthus Latreillc S. JAMAicENSis Drury, form geminatus Say. 'Twin-spot sphinx.' Salisbury Cove, Aug. (Dahlgren). The larva feeds on birch, cherry, etc. Paeonias Hiibner P. EXCAECATA Al)b. & Sm. 'Blinded sphinx.' N. E. Harbor (Minot) ; Salisbury Cove, July 17-25. The larva feeds on various plants of the order Rosaceae, also on willow, etc. P. MYOFS Abb. & Sm. 'Small-eyed sphinx.' Salisbury Cove, Aug. (Dahlgren). The larvae also feed on various Rosaceae. THE MOUNT DESEltT REGION 83 Pachysphinx Eothschild and Jordan P. MODESTA Harr. 'Big poplar sphinx.' N. E. Harbor, July 3 (A. R. Allen) ; Bar Harbor; Salisbury Cove (Mrs. Nealj. The larva feeds on poplar and willow. Aellopos Hiibner A. TITANS Cram. White-banded day-sphinx. Salisbury Cove, July 23, 1925 (Dahlgren). The most northern record for this southern species. Haemorrhagia Grote. (Hemaris auct.) H. THYSBE Fab. form cimbiciformis Steph. 'Humming-bird clear-wing.' Common, June 8-July 28. The larva feeds on Viburnum, Lonicera, etc. H. GRACILIS Grt. & Rob. 'Graceful clear-wing.' Great Clear- ing; Witch Hole Pond, June 10 and 13, 1921. H. DiFFiNis Bdv. 'Snowberry clear-wing.' Common, June 12-July 17. The larva feeds on snowberry (Symphoricar- pus), Lonicera, etc. Cklerio Okeu. {Beilepliila auct.) C. GALLii var. INTERMEDIA Kby. Galium sphinx. N. E. Har- bor, Aug. 15 (Minot); Salisbury Cove (Mrs. Neal). The larva feeds on fire weed (Epilobium). C. LiNEATA Fab. Striped morning sphinx. Ironbound Isl. (Blaney). The larva feeds on a variety of plants, evening primrose, currant, etc. Hesperiidae. Skippers Thorybes Scudder T. PYLADEs Scud. Bar Harbor (Burton) ; Salisbury Cove, July 24. The larva feeds on clover, etc. Thanaos Boisduval T. BRizo Bdv. & LeC. Bar Harbor, July 24. The larva feeds on oak. T. icELus Lint. Bar Harbor; S. W. Harbor; Echo Lake, June 12-July 24. The larva feeds on poplar. Cabterocephalus Lederer C. PALAEMON Pall. Bar Harbor, June 7-22. 84 BIOLOGICAL SURVEY OF Pamphila Fabricius P. SASSACUS Harr. Echo Lake, July 12. The larva feeds on grasses. POLITES Seudder P. CERNES Bdv. & LeC. Echo Lake; Salisbury Cove, July 12-15. P. MYSTIC Scud. Ironbound Isl. (Blaney). P. PECKius Kby. Salisbury Cove; Bar Harbor; S. W. Har- bor, June 20-Aug. 10. The larva feeds on grasses. Catia Godman and Salvin C. OTHO Abb. & Sm. Echo Lake, July 12. Poanes Seudder P. ZABULON Bdv. & LeC. Echo Lake; N. E. Harbor; S. W. Harbor, June 17-July 10. The larva feeds on grasses. EuPHYES ■ Seudder E. BiMACULA Grt. & Rob. Salisbury Cove, July 15. Amblycirtes Seudder A. viALis Edw. Echo Lake; Bar Harbor, June 15-July 12. The larva feeds on grasses. Papilionidae. Butterflies Papilio Linnaeus. Swallow-tails P. GLAUcus var. turnus Linn. Tiger or yellow swallow-tail. Common in June and early July. The larva feeds on a variety of plants, including cherry, apple, quince, ash, birch, alder, poplar, etc. P. poLYXENEs Fab. (P. aster ias auct.). Black swallow-tail. Common from June to August. The larva feeds on the wild and cultivated Umbelliferae, including carrot, parsnip, parsley, caraway, celery, etc. PlERIDAE PiEBis Sehrank {Pontia Fabricius) P. RAPAE Linn. Imported cabbage-butterfly. Common. In- troduced at Quebec about 1860, it reached Mt. Desert about 1868. The larva feeds chiefly on cabbage, but will also feed THE MOUNT DESERT REGION 85 on most of the Crncif erae, including turnip, mustard, horse- radish, water-cress, etc. It is usually kept in check by parasites.^ P. NAPi var. OLERACEA Harr. White mustard butterfly. Rare. Near Newport Mt. (Reich and Burton). Formerly com- mon throughout northern New England, but since the intro- duction of Pieris rapae, it has become comparatively scarce, probably owing to parasites. The larva feeds on mustard, cabbage, turnip, and other Cruciferae. EuRYMUS Swainson (Colias auct.) E. PHOLADiCE Godart. Common sulphur-butterfly. Common, July-Sept. The larva feeds on a number of the Legumino- sae, but prefers the clovers. E. INTERIOR Scud. Pink-edged sulphur-butterfly. Sometimes quite common throughout the island in July. E. EURYTHEME Bdv. Oraugc sulphur-butterfly. A western species that is occasionally found in New England. Mr. Scudder, on the distribution of this species in his "Butter- flies of New England," says: "Mt. Desert, Me., a single specimen seen (Thaxter)." Again, on page 1132, he says: "Mr. Thaxter was attracted to the specimen which he took at Mr. Desert by the orange color of the wings, and says the .butterfly was apparently dancing in nuptial pas de deux with a companion; they twirled high into the air beyond reach but soon separated and came to earth again w^hen one was captured." EuREME Swainson {Terms auct.) E. EUTERPE Menet. (T. lisa Bdv.). Little sulphur-butterfly. "One in excellent condition was taken on Mt, Desert, Me., by Mr. Roland Thaxter in August, 1880" (Scudder). Nymphalidae Argynnis Fabricius A. CYBELE Fab. Great spangled fritillary. Common during July and August. The larva passes the winter in a partly ' For a list of the parasites of butterflies, moths, and other insects, consult the lists of parasitic wasps, Braconidae and Ichneumonidae, and the parasitic flies, Tachinidae. 86 BIOLOGICAL SURVEY OF grown state, feeding on violets in the spring and early summer. A. APHRODITE Fab. Silver spot. July and August. Larva feeds on violets. Not as common as the preceding or fol- lowing species. A. ATLANTIS Edw. Mouutaiii silver spot. The most common butterfly of the island during July and August. The larva feeds on violets. Brenthis Hubner B. MYRiNA Cram. Silver-bordered fritillary. Common throughout the island during July and August. The larva feeds on violets. B. BELLONA Fab. Meadow fritillary. Pond Heath ; Salisbury Cove, July 24, 1925. It is local in its distribution, being found only about wet meadows and bogs. The larva usu- ally feeds on violets. EuPHYDRYAS Scudder (Melitaea auct.) E. PHAETON Drury. The Baltimore. Meadow south of Salis- bury Cove, July 14-18, 1923. The larva feeds on turtle- head {Chelone glabra). Melitaea Fabrieius M. HARRisi Scud. Harris's checker-spot. Common, Bar Har- bor and S. W. Harbor, June 9-25. The larva feeds on asters and turtle-head {Chelone glabra). Phyciodes Doubleday P. NYCTEis Doubl. & Hew. Silver crescent. Common, Bar Harbor ; Jordan Pond, and S. W. Harbor, June 7-25. The larva feeds on asters and other Compositae. P. THAROs Drury. Pearl crescent. Common throughout the island during June, July, and August. Variable in color; the spring form is knowm as marcia and the summer form as morpheus. The larva feeds on aster. P. BATESi Reak. Tawny crescent. Specimens that seem refer- able to this species have been taken at Bar Harbor and S. W. Harbor, June 25 and July 24. THE MOUNT DESERT EEGIOlSr 87 PoLYGONiA Hiibner (Grapta Kirby) P. iNTERROGATioNis Fab. Violet-tip angle-wing. Rare. The form umhrosa was taken on Ironbound Isl. by Mr. Dwight Blaney. The larva feeds on nettle, elm, basswood, etc. P. COMMA Harr. Comma butterfly. Not common. Ironbound Isl. (Blaney). The form dryas was taken at Salisbury Cove, July 14. Larva feeds on nettle, etc. P. FAUNus Edw. Green comma. Not common. Bar Harbor, July 29; Seal Harbor (D. Rockefeller). The larva feeds on birch, currant, and gooseberry. P. PEOGNE Cram. Gray comma. Salisbury Cove, July 14; Bar Harbor, Aug. 10. The larva feeds on currant and gooseberry. EuGONiA Hiibner E. j-ALBUM Bdv, & LeC. 'Compton tortoise.' Quite common at S. W. Harbor, Aug. 20-21. Larva feeds on birch. Aglais Dalman A. MiLBERTi Godart. Milbert's butterfly. Ironbound Isl. (Blaney). Larva feeds on nettle (Urtica dioica). EuvANESSA Scudder E. ANTioPA Linn. Mourning cloak. Not common. S. W. Har- bor, July 16, 1918; Bar Harbor, July 24, 1919. The larva feeds on willow, poplar, elm, etc. Vanessa Pabricius {Pyrameis auct.) V. ATALANTA Liuu. Red admiral. Common. Bar Harbor and S. W. Harbor, July 10-Aug. 22. The larva feeds on nettle and hops. V. viRGiNiENsis Drury (F. hunt era Fab.). Hunter's butter- fly. Common. Bar Harbor and S. W. Harbor, July 21- Aug. 22. The larva feeds on cudweed and everlasting. V. CARDui Linn. Painted lady. Common, July 29-Aug. 22, 1920. The larva feeds on a variety of plants : thistle, bur- dock, everlasting, etc. 88 BIOLOGICAL SURVEY OF Basilakchia Scudder B. ARTHEMis Drury. Banded purple. Common. Bar Har- bor ; Echo Lake ; S. W. Harbor, July 12-Sept. 7. The larva feeds on birch, willow, and poplar. B. ARTHEMIS var. PROSERPINA Edw. Oue specimen was taken at Echo Lake, July 17, 1918. This form, which is common in the Berkshires and Catskills, is considered a hybrid be- tween the more southern Basilarchia astyanax and the northern B. arthemis. If so, the former must occasionally reach Mt. Desert. In discussing the probable occurrence of proserpina at Halifax, Nova Scotia, Mr. Scudder says: ''It is not at all improbable that ursula [asti/anax] may yet be found as far north as Mt. Desert, and that colonies of proserpina are now living along the whole coast of Maine." (See Butterflies of New England, vol. 1, p. 291, 1889.) B. ARCHippus Cram. 'Vicero5\' Not common. Bar Harbor, Aug. 15. The larva feeds on willow and poplar, Satyridae Enodia Hiibner {Bchis Westwood) E. PORTLANDiA Fab. Pearl-eyed nymph. Local in its distribu- tion, wood near the Sieur de Monts Spring ; Salisbury Cove, July 18-24. The larva feeds on grasses. Satyrodes Scudder S. CANTHus Linn. Common grass nymph. Bar Harbor; Sal- isbury Cove; S. W. Harbor, July 10-24. The larva feeds on grasses. Cercyonis Speyer (Satyrus Westwood) C. ALOPE Fab. Common nymph or grayling. Common throughout the island from July 25 to Aug. 30. The larva feeds on grasses. The most interesting feature connected with this species is that here both the typical alope and the varieties maritima Edw. and nephele Kirby are equally abundant at the same time and place, with all gradations present. As nephele is the more northern form and the THE MOUNT DESERT EEGION 89 others usually more southern, this presents another good illustration of climatic and environmental conditions favor- able to both northern and southern forms. Danaidae Danaus Linnaeus {Anosia Hiibner) D. ARCHippus Fab. (A. plexippus auct.). Monarch. S. W. Harbor, July, 1918; east of Champlain Mt., 1924 (Burton). I have seen this species but once. It is probably only an occasional visitor during- its northern migration. In the absence of milkweed (Asclepias), the larva could probably feed on dogbane (Apocynum). Lycaenidae Thecla Fabricius (Strymon Hiibner) T. CALANus Hbn. Banded hair-streak. Bar Harbor; Salis- bury Cove, July 18-24. The larva feeds on oak and thorn (Crataegus). Incialia Scudder I. AUGUSTUS Kby. Brown elfin. Ironbound Isl. (Blaney). I. NiPHON Hbn. Banded elfin. 'Mt. Desert' (Scudder). The larva feeds on pine. Heodes Dalman (Chrysophanus auct.) H. EPiXANTHE Bdv. & LeC. Least copper. Meadow south of Salisbury Cove, July 14-15, 1923. Larva feeds on cran- berry. H. HYPOPHLAEAS Bdv. American copper. Common. Bar Harbor; S. W. Harbor, July 10-Aug. 24. Larva feeds on field sorrel {Rumex acetosella). EvERES Hiibner (Lycaena auct.) E. coMYNTAS Godart. Tailed blue. Near Bar Harbor. The larva feeds on clover and other leguminous plants. Lycaena Linnaeus {Lycaenopsis Feld.) L. ARGioLus Linn. (L. pseudargiolus Bdv. & LeC). Common blue. Common, Bar Harbor; S. W. Harbor, June 7-July 21. The larva feeds on a great variety of plants. The 90 BIOLOGICAL SURVEY OF species is extremely variable, the spring forms lueia and margiuata and the summer form neglecta being present. Feniseca Grote F. TARQuiNius Fab. AVanderer. Near Bar Harbor (Burton). The larva is carnivorous, feeding on the woolly aphids Pro- ciphilus tesseUata on the alder (Alnus) and P. imbricafor on the beech. Order STREPSIPTERA Stylopidae Stylops Kirby S. sp. Echo Lake, June 17. Host Andrena milwankeensis Groen. S. sp. N. E. Harbor, July 8 (Minot). Host Andrena thaspii Groen. Order COLEOPTERA. Beetles CiciNDELiDAE. Tiger beetles CiciNDELA Linnaeus C. PURPUREA Oliv. Near Bar Harbor (Burton). C. LiMBALis Klug. Bar Harbor (Harris). C. DUODECiMGUTTATA Dcj. Bar Hai'bor ; Newport Cove, June 13-Sept. 13. C. TRANQUEBARicA Hbst. {C . vulgaris Say). 'Mt. Desert' (Harris). C. LONGiLABRis Say. Salisbury Cove ; Long Pond ; S. W. Har- bor, June 25- July 12. C. SEXGUTTATA Fab. Bar Harbor; Salisbury Cove, July 14- 27. Carabidae. Ground beetles ScAPHiNOTUS Dejean S. viDuus Dej. Seal Harbor, Aug. 24, 1922 (Mrs. E. C. Bod- man). The larva feeds on land snails. NoMABETUS LeConte N. BiLOBUs Say. A specimen of this rare beetle was found on Ironbound Isl. by Mr. Dwight Blaney. THE MOUNT DESERT REGION 91 Carabus Liunaeus C. CHAMissoNis var. groenlandicus Dej. 'Mt. Desert' (Aus- tin). The occurrence of this beetle on the island seems very „ doubtful. C. maeander Fiscli. Bar Harbor, Aug. 6 (Miss E. L. Sawyer). Calosoma Webb C. SYCOPHANTA Liuu. Introduced from Europe to destroy the gypsy moth. A single specimen was found on the beach of Ironbound Isl. by Mr. Dwiglit Blaney. C. CALiDUM Fab. Ironbound Isl. (Blaney). NOTIOPHILUS Dumeril N. AENEUs Hbst. Bee Hive Mt., Aug. 13 (Sanford). Nebria Latreille N. sAHLBERGi Fisch. Eclio Lake, July 17. X. PALLiPES Say. Long Pond, July 16. Bembidion Latreille (Bembidium auct.) B. VARiEGATUM Say. *Mt. Desert,' July, 1894. B. QUADRiMACULATUM Liuu. Mt. Dcscrt, July, 1894. Tachyta Kirby T. iNORNATA Say {Tachys nana auct.). Bar Harbor, July 29. Patrobus Dejeaii P. LONGicoRNis Say. S. W. Harbor; Salisbury Cove, July 13-14. Myas Dejean M. coRACiNus Say. Bar Harbor ; Salisbury Cove ; Long Pond, June 26- July 17. Pterostichus Bonelli P. ADoxus Say. Bar Harbor; Jordan Pond, Aug. 4-12. P. REjECTus LeC. Bar Harbor ; Jordan Pond, June 16- Aug. 4. Euferonia Casey E. STYGiCA Say. Bar Harbor, Aug. 14. E. coRACiNA Newn. Long Pond; Narrows, July 16- Aug. 13. 92 BIOLOGICAL SUEVEY OF ^ \ Gastrellarius Casey | G. HONESTus Say. Jordan Pond, Aug*. 4—13. j POECiLus Bonelli P. LucuBLANDus Sav. S. W. Harbor ; Bar Harbor, June 8- i July 13. I Omaseus Ziegler 0. coRviNus Dej. Witch Hole Pond, Aug. 6 (Sanford). ■ Dysidius Chaudoir s D. MUTus Say. Bar Harbor, July 11. j \ BoTHRiOPTERUS Chaudoir ', B. ADSTRicTus Escli. Bar Harbor, June 27. B. LuczoTTi Dej. S. W. Harbor, July 13. ■ ] Bradytus Stephens . B. APRiCARius Payk. Bar Harbor, July 29. Amara Bonelli ■ A. FALLAX LeC. Bar Harbor, June 13. i Pristodactyla Dejean i P. iMPUNCTATA Say. Bar Harbor; Salisbury Cove, July j 15-22. j Platynus Bonelli : P. siNUATus Dej. Bar Harbor, Aug. 12 ; Echo Lake, July 17- I Aug. 12. = P. MELANARius Dej. S. W. Harbor, June 18. : P. BOGMANNi Gyll. N. E. Harbor, Aug. 10 (Minot). \ P. RUFicoRNis LeC. S. W. Harbor, July 13. P. HADRYi Chd. mss. LeC. Bar Harbor, June 22. P. METALLESCENS LeC. Salisbury Cove, Aug. 11. [ Lebia Latreille L. viRiDis Say. S. W. Harbor, Aug. 20. i L. PUMiLA Dej. S. W. Harbor, Aug. 20. L. FURCATA LeC. Mt. Pemetic, Aug. 4 (Sanford). ! L. ORNATA Say. Duck Brook, Sept. 11. i L. FuscATA Dej. Bar Harbor, July 10. j THE MOUNT DESERT REGION 93 Cymindis Latreille C. CRiBRicoLLis Dej. N, E. Harbor, July (Minot). Brachinus Webb B. cYANiPENNis Sav. S. W. Harbor, June 18. Chlaenius Bonelli C. PENNSYLVANicus Say. S. W. Harbor; Witch Hole Pond, June 18-Aug. 6. C. SERiCEus Forst. S. W. Harbor; Witch Hole Pond, June 16-Aug. 6. Harpalus Latreille H. PLEURATicus Kby. S. W. Harbor, Aug. 21. Anisodactylus Dejean A. HARRisii LeC. Narrows, June 9. A. iNTERPUNCTATus Kby. S. W. Harbor, June 18. Selenophorus Dejean S. oPALiNus LeC. Echo Lake, June 17. Trichocellus Ganglbauer T. BOREELLus Casey. S. W. Harbor, July 13. Catharellus Casey C. coRDicoLLis LeC. Salisbury Cove, July 18. Stenolophus Dejean S. ruLiGiNosus Dej. S. W. Harbor, July 13. Haliplidae Haliplus Latreille H. RuricoLLis De G. NeM^port Cove, Sept. 13. Dytisidae. Diving-beetles Laccophilus Leach L. MACULOSA Germ. S. W. Harbor, July 15. Hydroporus Clairville H. uNDULATus Say. S. W. Harbor, July 14. 94 BIOLOGICAL SURVEY OF Agabus Leaeli A. GAGATEs Aiibe. S. W. Harbor; Bar Harbor, June 25- July 11. Illybius Erichson I. suBAENEus Er. S. W. Harbor; Bar Harbor, July 14-29. I. ANGUSTiOR Gyll. S. W. Harbor, July 14. I. BiGUTTULUs Germ. Salisbury Cove, Aug. 10. COPTOTOMUS Say C. iNTERROGATus Fab. Bar Harbor ; Salisbury Cove, June 11- Aug. 10. CoLYMBETES CLiirville C. scuLPTiLis Harr. Bar Harbor, June 9-13. Dytiscus Linnaeus D. DAURicus Gebl. Ironbound Isl. (Blaney). D. sp.? Bar Harbor, July. Larva from lily pond, Mt. Desert Nurseries. It may possibly represent the above species. The larvae of this genus are popularly known as "water tigers." AciLius Leach A. sEMisuLCATus Aubc. Small pond on hill east of Salisbury Cove, Aug. 10, 1926. Gyrinidae. Whirligig-beetles DiNEUTES MacLeay D. HORNi Robts. Ice ponds, Manset ; Bar Harbor, July 15-26. Gyrinus Geoffroy G. BOREALis var. LUGENS LcC. Ice ponds, Manset; Bar Har- bor, July 15-Aug. 14. G. puGioNis Fall. Bar Harbor; Salisbury Cove, July 29- Aug. 10. Hydrophilidae. Water-scavenger beetles Hydrophilus De Geer H. oBTusATus Say. Bar Harbor, July 24. Tropisternus Solier T. GLABER Hbst. Witch Hole Pond ; Salisbury Cove, June 13- Aug. 10. THE MOUNT DESERT REGION 95 Enochrus: Thomson, (Pliilhijdrus Solier) E. PERPLExus LeC. Narrows, Aug. 13. Cymbiodyta Bedel C. riMBRiATA Melsh. Narrows, Aug". 13. Cryptopleurum Mulsant C. MiNUTUM Fab. S. W. Harl)or, July 15. SiLPHiDAE. Carrion-beetles Necrophorus Fabricius. Burying beetles N. sAYi Lap. Bar Harbor (Moore). N. oRBicoLLis Say. Bar Harbor, Aug. 6 (Miss E. L. Sawyer). N. pusTULATus Hersch. Bar Harbor (Miss Sa^\yer). N. TOMENTOSA Web. Bar Harbor; Salisbury Cove, July 15- Aug. 16. N. VESPiLLoiDEs Hbst. S. W. Harbor, on dead shrew; Bar Harbor; Salisbury Cove, on dead snake (Sanford), July 11-Aug. 16. SiLPHA Linnaeus S. suRiNAMENsis Fab. Common, Bar Harbor, Aug. 6 (Miss Sawyer). S. LAPPONicA Hbst. Salisbury Cove, on a dead starnosed mole, and on a dead snake ; Bar Harbor, July 15- Aug. 11. S. NovEBORACENSis Forst. S. W. HarboT ; Bar Harbor ; Salis- bury Cove, on a dead snake (Sanford), July 15-Aug. 11. S. AMERICANA Liuii. Commou, July 15-Aug. 14. Choleva Latreille C. BASiLLARis Say. S. W. Harbor, July 13, on a dead shrew. Staphylinidae. Rove beetles Anthobium Stephens A. POTHos Mann. S. W. Harbor, June 27. Stenus Latreille S. FLAVicoRNis Er. S. W. Harbor, July 13. Lathrobium Gravenhorst L. SIMILE LeC. Jordan Pond, July 4 (Sanford). 96 BIOLOGICAL SURVEY OF Philonthus Curtis P. poLiTus Linn. Salisbury Cove, June 9. P. FURvus Nordm. Narrows, Aug. 13. P. cYANiPENNis Fab. Bar Harbor, July 20, on decaying fungi. Staphylinus Linnaeus S. FOSSATOR Grav. Green Mt. ; Bar Harbor, July 25-Aug. 15. S. ciNNOMOPTERus Grav. Bar Harbor, July 10-Aug. 10. S. vioLACEA Grav. Wild Cat Valley, Aug.* 8 (Sanford). S. viRiDANus Horn. Bar Harbor, Aug. 10. OcYPUS Kraatz 0. ATER Grav. S. W. Harbor, Sept. 5 (Alexander). Ontholestes Ganglbauer (Listotrophus auct.) 0. ciNGULATus Grav. Bar Harbor; S. W. Harbor, June 7- July 24. Creophilus Mannerlieim C. MAXiLLOsus var. villosus Grav. Wood Lake; Hull Cove, Aug. 8 (Sanford). QuEDius Stephens Q. LAEviGATus Gyll. Bar Harbor, Aug. 14. OxYPORUS Fabricius 0. FASCiATus Horn. Duck Brook; Echo Lake, Sept. 3-11, on decaying fungi. 0. BicoLOR Fauv. Echo Lake ; Long Pond ; Bar Harbor, Aug. 29-Sept. 11. 0. LATERALIS Grav. Bar Harbor, Sept. 9. Tachinus Gravenhorst T. MEMNONius Grav. Duck Brook; S. W. Harbor, Sept. 3-11, on decaying fungi. T. FiMBRiATus Grav. Bar Harbor; Duck Brook, Aug. 14— Sept. 11, on decaying fungi. T. piciPEs Er. Narrows ; Bar Harbor, July 13-Aug. 10. CoNOSOMA Kraatz C. iMBRiCATus Casey. Narrows, Aug. 3 (Sanford). THE MOUNT DESERT REGION 97 BoLiTOBius Stephens B. ciNCTicoLLis Say. Salisbury Cove; Duck Brook, July 23- Sept. 11. Atheta Thomson A. sp. S. W. Harbor, Aug. 26. Aleochara Gravenhorst A. sp. Salisbury Cove, July 25. Baryodma Tliomson B. BiMACULATA Grav. Salisbury Cove, Aug. 11. SCAPHIDIIDAE Scaphisoma Leach S. CONVEXUM Say. Bar Harbor, July 24. Baeocera Erichson B. coNcoLOR Fab. S. W. Harbor, July 13. HiSTERroAE HiSTER Linnaeus H. FURTivus LeC. Salisbury Cove, Aug. 11. H. DEPURATOR Say. S. W. Harbor, July 15. Platysoma Leach P. coARCTATUM LeC. AVood Lake, Hulls Cove, Aug. 8 (San- ford). Saprinus Erichson S. ASSiMiLis Payk. Salisbury Cove, on dead snake (Sanford) ; Bar Harbor, July 15-Aug. 11. Lycidae Celestes Newman C. BASiLARis LeC. Salisbury Cove; Echo Lake; N. E. Harbor, July 15-Aug. 23. Eros Newman E. AURORA Hbst. Ironbound Isl. (Blaney). Lampyridae. Fireflies Lucidota Laporte L. ATRA Fab. Bar Harbor; N. E. Harbor; Echo Lake, June 16-July 12. L. coRRuscA Linn. Common, June-Sept. 98 BIOLOGICAL SURVEY OF L. CORRUSCA var. autumnalis Melsh. Common, June-Sept. L. DECiPiENs Harr. Bar Harbor; Salisbury Cove; S. W. Har- bor, July 15- Aug. 10. L. NIGRICANS Say. S. W. Harbor; Bar Harbor, July 20- Aug. 10. Pyractomena LeCoute P. UNGULATA Say. S. W. Harbor, June 20-July 15. P. BOREALis Rand. Long Pond, June 26. Photinus Lacordaire P. ARDENS LeC. S. W. Harbor, common, June 21. P. sciNTiLLANs Say. Salisbury Cove, July 15. Photurus LeCoute P. PENNSYLVANiCA Dc G. Salisbury Cove; S. W. Harbor, July 12-19. Cantharidae PoDABRUS Westwood P. RUGULOSA LeC. N. E. Harbor ; Salisbury Cove, July 1-22. P. DiADEMA Fab. Bar Harbor; S. W. Harbor, June 7-July 10. P. MODESTus Say. S. W. Harbor; Echo Lake; Long Pond, June 27-July 16. P. PUNCTATus LeC. Bar Harbor, June 14. P. piNiPHiLus Esch. S. W. Harbor, July 14. Cantharus Linnaeus (Telephorus Schaeffer) C. NiGRiTULUs LeC. Bar Harbor; S. W. Harbor; Salisbury Cove, July 10-15. C. sciTULus Say. S. W. Harbor; Salisbury Cove; Bar Har- bor, July 13-24. C. ROTUNDicoLLis Say. Bar Harbor ; N. E. Harbor, July 7-20. C. cuRTisi Kby. Long Pond; Bar Harbor; N. E. Harbor, June 27-July 20. C. ANDERsoNi Frost. Bar Harbor; Jordan Pond; Salisbury Cove, June 7-July 18. Malthodes Kiesenwetter M. coNCAvus LeC. Bar Harbor, July 24. M. FRAGiLis LeC. S. W. Harbor, July 13. THE MOUNT DESERT REGION 99 Melyridae COLLOPS Erichson C. TRICOLOR Say, Bar Harbor (Moore) ; Long Pond, June 27. Malachius Fabricius M. AENEus Linn. Bar Harbor ; S. W. Harbor, June 11-16. Attalus Erichson A. TERMiNALis Er. S. W. Harbor ; N. E. Harbor, July 20-26. Cleridae Thanasimus Latreille T. DUBius Fab. Bar Harbor, July 10. Trichodes Herbst T. NUTTALLi Kby. 'Mt. Desert' (J. C. Merrill). Htdnocera Newman H. HUMERALis var. DiFFiciLis L. E. Salisbury Cove; S. W. Harbor, July 12-19. H. PALLiPENNis Say. Long Pond; Jordan Pond; Echo Lake, Aug. 21-Sept. S. ISOHYDNOCERA Chapin I. cuRTiPENNis Newii. Salisbury Cove, July 12. CORYNETIDAE Phyllobaenus Spinola P. DisLOCATus Say. Bar Harbor (Moore). Necrobia Latreille N. vioLACEA Linn. Salisbury Cove, July 14, on dried bones of a horse. Cephaloidae Typitium Casey T. UNGULARE LeC. Echo Lake, July 17. Oedemeridae AscLERA Stephens A. RUFicoLLis Say. Witch Hole Pond, June 13. 100 BIOLOGICAL SURVEY OF } MORDELLIDAE i TOMOXIA Costa I T. LiNEELLA LeC. Diick Brook, Aug. 18. i MoRDELLA Linnaeus ' M. scuTELLARis Fab. Long Pond, July 16. M. MAEGiNATA Melsli. Common, July 12-Sept. 7. i MORDELLISTENA Costa M. TRiFASCiATA Say. Salisbury Cove, Aug. 11. M. LiMBALis Melsh. S. W. Harbor ; Eagle Lake ; Bar Harbor, July 20-29. M. scAPULAEis Say. Eagle Lake, July 18. M. cERvicALis LeC. 'Mt. Desert.' M. ERRANs Fall. Bar Harbor, July 20. M. NIGRICANS Melsh. 'Mt. Desert,' July 20 (McAtee). M. MARGiNALis Say. Bar Harbor, Aug. 10. \ Anaspis Geoffroy j A. FLAviPENNis HaW. Long Pond, July 16. A. RUFA Say. Echo Lake ; Eagle Lake, July 12-18. Meloidae. Blister-beetles ^ Macrobasis LeConte 3 M. uNicoLOR Kby. Salisbury Cove, July 8-14, feeding on the . leaves of meadow rue (Sanford). : Meloe Linnaeus i M. AMERiCANUs Leach. S. W. Harbor, Aug. 30 (Alexander). | Pyrochroidae \ ScHizoTUS Newman S. CERVICALIS Newn. Upper Hadlock Pond, June 10. Dendroides Latreille D. BicoLOR Newn. {canadensis LeC). Echo Lake, July 17. D. coNcoLOR Newn. Bar Harbor; N. E. Harbor, June 17- July 7. Elateridae. Click-beetles The larvae are known as 'wire worms' ; some live in decay- I ing wood, while others are injurious of vegetables. I THE MOUNT DESERT REGION 101 PiTYOBius LeConte P. ANGuiNus LeC. Ironboimd Isl. (Blaney). Athous Esclisclioltz A. BRiGHTWELLi Kbv. Bar Harbor; Newport Cove, July 11- 22. A. ACANTHUS Say. Bar Harbor, July 24. Lepturoides Herbst L. DENTicoRNis Kby. Common, June 10-27. LuDius Esolischoltz (Corymbites Latreille) L. RESPLENDENs Escli. S. W. Harbor, June 25. L. sjAELANDicus Mull. {fessellafus Fab.). Witch Hole Pond, June 13. L. HAMATus Say. N. E. Harbor, Aug. 13 (Minot). L. spiNosus LeC. Near Bar Harbor (Burton). L. TRiuNDULATus Raud. Jordan Pond; Bar Harbor; Long Pond, June 10-July 16. L. MEDiANus Germ. Salisbury Cove, July 13-17. L. AEREiPENNis Kby. S. W. Harbor ; Bar Harbor, July 11-20. L. NiGRicoRNis Panz. Echo Lake, July 12. L. ARATus LeC. S. W. Harbor, July 10. L. CRUciATus Linn. Common, June 9-July 19. Hemicrepidius Germar (Asaphes Kirby) H. MEMNONius Hbst. Commou, June 17-Aug'. 15. DoLOPius Eschscholtz D. LATERALIS Esch. Bar Harbor ; Salisbury Cove ; Long Pond, July 6-20. Sericus Esclisclioltz S. HONESTus Rand. Bar Harbor, June 8-22. Agriotes Eschscholtz A. MANCus Say. Bar Harbor, June 16. A. sTABiLis LeC. Echo Lake, June 27. A. Fuscosus LeC. Long Pond ; Bar Harbor, June 27-July 19. A. LiMosus LeC. S. W. Harbor; Echo Lake, July 11, 12. A. FERRUGiNEiPENNis LcC. Bar Harbor, June 16. 102 • BIOLOGICAL SURVEY OF Betarmon Kiesenwetter B. BiGEMiNATus Raiicl. S. W. Harbor, July 11. Elater Linnaeus E, RUBRicus Say. Bar Harbor, July 10. E. MixTus Hbst. 'Mt. Desert,' July (McAtee). E. NIGRICANS Germ. Echo Lake, June 17. Melanotus Eschscholtz M. CASTENiPEs Payk, Bar Harbor; Long Pond; N. E. Har- bor, July 16-19. M. LEONARDi LeC. Duck Brook; Bar Harbor; S. W. Harbor, June 13- July 19. Cardiophorus Eschscholtz C. GAGATES Er. Echo Lake, June 27. Melasidae Nicrorhagus Eschscholtz M. iMPERFECTus LcC. Bar Harbor, July 29. Throscidae AuLONOTHROSCUs Horn A. CONSTRICTOR Say. Bar Harbor; Long Pond, June 16- July 16. BuPRESTiDAE. Flat-headed wood-borers Chalcophora Solier C. viRGiNiENsis Drury. Bar Harbor (Moore) ; Salisbury Cove, June 9. The larva lives in pine. C. LACUSTRis LeC. Bar Harbor, June 8. DiCERCA Eschscholtz D. DivERiCATA Say. Upper Hadlock Pond, June 10. The larva breeds in maple, beach cherry, and apple. D. PROLONGATA LcC. 'Mt. Dcsci't ' (H. Thayer). BuPRESTis Linnaeus B. MACULivENTRis Say. Bar Harbor, July 29. The larva in- fests pine and spruce. B. FASciATA Fab. Ironbound Isl. (Blaney). THE MOUNT DESERT REGION 103 Melanophila Eschscholtz M. FULVOGUTTATA Harr. 'Yellow-dotted Buprestris.' Bar Harbor, Long Pond, June 11-July 16. The larva lives be- neath the bark of pine and spruce logs. M. ACUMINATA De G. Bar Harbor; S. W. Harbor, Aug. 18- 24. The larva infests partly dead spruce. Chrysobothris Eschsclioltz C. pusiLLA Cast. Bar Harbor, July 29. The larva infests pine and spruce. C. TRiNERviA Kby. Long Pond, July 16. The larva infests pine and spruce. C. DENTiPEs Germ. Long Pond; Bar Harbor, June 7-July 29. The larva lives in pine and spruce. C. FEMORATA OHv. Seal Harbor (Prof. Stowell) ; Echo Lake; Bar Harbor, June 27-July 29. C. scABRiPENNis Cast. Loug Pond; Bar Harbor, July 16-29. Agrilus Stephens A. ANxius Gory. 'Bronze birch borer.' Bar Harbor, July 24. A. RUFicoLLis Fab. Red-necked borer. Salisbury Cove, July 23. The larva bores into the stalk of blackberries and raspberries. A. LATERALIS Say. Salisbury Cove ; S. W. Harbor, July 14-21. A. oBsoLETOGUTTATus Gory. Echo Lake, July 12. The larva infests oak. A. POLiTus Say. Salisbury Cove, July 23. Brachys Solier B. AEROSus Melsh. Bar Harbor; Salisbury Cove, June 22- July 15. The larva infests oak. B. AERUGiNosus Gory. Salisbury Cove, July 18. Dascillidae EuRYPOGON Motschulsky E. NIGER Melsh. Salisbury Cove, July 8. 104 BIOLOGICAL SURVEY OF Helodidae Cyphona Paykull C. EUFicoLLis Say. Bar Harbor, June 22. C. OBscuRUS Guer. Long Pond ; Echo Lake ; Bar Harbor, July 12-30. C. coLLARis Guer. Bar Harbor; Salisbury Cove, July 15-24. C. VARIABILIS Thunb. S. W. Harbor; Breakneck Pond; July 14-Sept. 8. Prionocyphon Kedtenbacher P. DiscoiDEus Say. Bar Harbor, July 20. SciRTES Illiger S. TIBIALIS Guer. Witch Hole Pond, July 30. Dermestidae Byturus Latreille B. uNicoLOR Say. Bar Harbor, July 10. Dermestes Linnaeus D. LARDARius Liuu. Lardcr beetle. S. W. Harbor ; Salisbury Cove, June 24-July 10. Attagenus Latreille A. picEus Oliv. Black carpet beetle. Bar Harbor, July (Moore). Anthrenus Latreille A. MUSEORUM Linn. Museum beetle. Bar Harbor; Eagle Lake; Long Pond, July 16-Aug. 10. A. scROPHULARiAE Linii. Buffalo carpet beetle. Bar Harbor; S. W. Harbor, June 16-21. Byrrhidae Byrrhus Linnaeus B. AMERicANUs LeC. S. W. Harbor; Green Mt., July 13- Aug. 17. OsTOMiDAE (Trogositidae) Thymalus Latreille T. MARGiNicoLLis Chcv. {T . fulgidiis Er.). Jordan Pond; Sal- isbury Cove, June 10-July 15. Lives in the white birch fungus, Polyporus hetulinus. THE MOUNT DESERT REGION 105 NiTIDULIDAE COLOPTEBUS Erichson C. TRUNCATus Band. Bar Harbor, Sept. 9. NiTiDULA Fabricius N. RUFiPES Linn. Salisbury Cove, July 14. Omosita Erichson 0. COLON Linn. Salisbury Cove, July 14. On dried bones of a dead horse. Gleschbochilus Reitter (Ips of authors) G. FAsciATus Oliv. Bar Harbor, July 4 (Moore). G. sANGuiNOLENTus OHv. Bar Harbor, July 4 (Moore), Cryptophagidae Telmatophilus Heer T. AMERiCANus LeC. Bar Harbor, June 13-Aug. 18. Antherophagus Latreille A. coNVExuLus LeC. Echo Lake, July 12. Anchicera Thomson A, EPHippiATA Zimm. Bar Harbor (Moore). Lathribhdae Lathridius Herbst L. LiRATus LeC. Witch Hole Pond, June 13. CORTICARIA Marsham C. FERRUGiNEA Marsli. Long Pond, July 16. Melanophthalma Motschulsky M. GiBBosA Hbst. 'Mt. Desert,' July (McAtee). Endomychidae Mycetina Mulsant M. PERPULCHRA Ncwu. S. W. Harbor, July 13. Endomychus Panzer E. BiGUTTATus Say. Ironbound Isl. (Blaney). 106 BIOLOGICAL SURVEY OF Phalacridae Olibrus Erichson 0. PALLiPES Say. Bar Harbor; Narrows; Seal Harbor, July 24-Aug. 20. CocciNELLiDAE. Laclybeetles Hyperaspis Chevrolat H. BiGEMiNATA Raiid. Bar Harbor, Aug. 16. Brachyacanthus Chevrolat B. URSINA Fab. Long Pond, Aug. 21. Stethorus Weise S. PUNCTUM LeC. Mt. Desert, July (McAtee). SCYMNUS Kugelaim S. CAUDALis LeC. Long Pond; Echo Lake; Salisbury Cove, June 26-July 15. S. TENEBRosus Muls. S. W. Harbor, Aug. 20. S. QUADRiTAENiATus LeC. Witcli Hole Pond, Aug. 18. PsYLLOBORA Chevrolat P. viGiNTi-MACULATA Say. Tweiity-spotted ladybeetle. Com- mon, June 16-Sept. 11. Anisosticta Chevrolat A. BiTRiANGULARis Say {A. strigata auct.). S. W. Harbor: Narrows, June 21-Sept. 12. HippODAMiA Chevrolat H. TREDEciM-PUNCTATA Linii. Tliirteeii-spotted ladybeetle. S. W. Harbor, July 13. H. PARENTHESIS Say. S. W. Harbor, Aug. 23. CocciNELLA Linnaeus C. PERPLEXA Muls. (C. trifasciafa auct.). Three-banded lady- beetle. Bar Harbor; Long Pond; S. W. Harbor, June 18- Sept. 11. C. TRicuspis Kby. Salisbury Cove, July 13-Aug. 5. C. NovEMNOTATA Hbst. Niuc-spotted ladybeetle. S. W. Har- bor, Aug. 21. C, TRANsvERsoGUTTATA Fald. Commou, June 11-Aug. 21. THE MOUNT DESERT REGION 107 Adalia Mulsant A. BiPUNCTATA Liiiii. Two-spottecl ladybeetle. Bar Harbor; S. W. Harbor, June 11-Sept. 6. Cleis Mulsant C. picTA Rand. Ironbound Isl. (Blaney) ; S. W. Harbor, Aug. 29 (Alexander). Anisocalvia Crotch A, duodecim-maculata Gebl. Twelve-spotted ladybeetle. Salisbury Cove, July 27; Ironbound Isl., Aug. (Blaney). A. quatuordecimguttata var. similis Rand. Bar Harbor, June 11-15. Neomysia Casey N. pullata Say. Bar Harbor (Moore). Chilocorus Leach C. bivulnerus Muls. Twice-stabbed ladybeetle. Bar Har- bor, July 29. Alleculidae (Cistelidae) Hymenorus Mulsant H. NIGER Melsli. N. E. Harbor, Aug. 10 (Minot). H. piLosus Melsli. Bar Harbor, July (Moore). IsoMiRA Mulsant I. QUADRisTRiATA Couper. Commoii, June 17-July 13. Capnochroa LeConte C. FULiGiNosA Melsli. Dry Mt., July 17 (Sanford). Androchirus LeConte A. ERYTHROPUS Kby. Salisbury Cove; Narrows, July 13-27. Tenebrionidae Phellopsis LeConte P. OBCORDATA Kby. Common, June 10-Aug. 6. It lives in the white birch tree fungus, Polyporus hetuUna. BoLiTOTHERUS Candeze B. coRNUTus Panz. Bar Harbor; Jordan Pond, July 21- Aug. 4. It lives in the 'shining tree fungus,' Fomes lucidus. 108 BIOLOGICAL SURVEY OF DiAPERis Geoffroy D. MACULATA Oliv. (Z>. Jiydni Fab.). Jordan Pond; Seal Har- bor, June 10-Aug. 6. It lives in the white birch tree fungus, Polyporus hetul'ma. ScoTOBATES Horn S. CALCAEATus Fab. Sieur de Monts Spring, Bar Harbor, July 22. Upis Pabricius U. CERAMBoiDEs Liuu. St. Sauveur Mt. (Sanford); S. W. Harbor, July 19-Sept. 6. Tenebrio Linnaeus T. MOLiTOE Linn. 'Meal worm.' Bar Harbor; S. W. Har- bor (Mrs. Palmer), June 27-July 26. Lagriidae Arthomacra Kirby A. AENEA Say. Common, June 13-July 25. Melandryidae Penthe Newman P. piMELiA Fab. N. E. Harbor (Minot) ; Bar Harbor, July 10-Aug. 12. Emmesa Newman E. coNNECTANs Newu. Acadia (Robinson) Mt., June 26. Serropalpus Hellenius S. BARBATtJs Schall. Bar Harbor (Moore). MiCROTOMUs LeConte M. SERICANS LeC. Salisbury Cove, July 15. Symphora LeConte S. FLAVicoLLis Hald. Long Pond, July 16. Canifa LeConte C. pusiLLA Hald. Echo Lake, June 27-Sept. 1. Ptinidae Ptinus Linnaeus P. FUR Linn. Bar Harbor, June 17 (Moore). THE MOUNT DESERT REGION 109 Anobiidae Ernobius Thomson E. MOLLIS Linn. S. W. Harbor; N. E. Harbor; Green Mt., June 22-July 25. CiSIDAE Xestocis Casey X. LEVETTi Casey. Bar Harbor; Jordan Pond, July 22- Aug. 4. It lives in the dry 'shining tree fungus,' Fomes lucidus, on decaying hemlock logs. ScARABAEiDAE. Scarabaeids or lamellicorn beetles Onthophagus Latreille 0. HECATE Panz. Salisbury Cove, July 15. On a dead star- nosed mole. Aphodius lUiger A. FossoR Linn. Bar Harbor, June 11. A. HUMATus Say. 'Mt. Desert' (S. Henshaw). A. FiMETARius Liiiu. Commoii dung beetle. June 20-Sept. 9. A. GRANARius Liuu. Bar Harbor (Moore). DiALYTES Harold D. sTRiATTjLus Say. S. W. Harbor, July 14. Geotrupes Latreille G. BALYi Jek. Bar Harbor; Wood Lake (Sanford); Long Pond, July 29-Aug. 21. It lives in the underground portion of the stems of toadstools. G. EGERiEi Germ. S. AV. Harbor, Sept. 5 (Alexander). Also frequents fungi. G. sPLENDiDus Fab. N. E. Harbor, Aug. 23 (Minot) ; Iron- bound Isl. (Blaney). Serica MacLeay S. cucuLLATA Dawsou. Salisbury Cove, July 12 (Sanford). S. TRisTis LeC. Salisbury Cove, July 14. DiPLOTAXiS Kirby D. LiBERTA Germ. Bar Harbor (Moore) ; Ironbound Isl. (Blaney). D. TRisTis Kby. Salisbury Cove, July 10 (Sanford). * )^ 110 BIOLOGICAL SURVEY OF Phyllophaga Harris (Lachnosterna Hope) P. FuscA Froelich. Common Maybeetle or 'June bug.' Long Pond, June 27. The larva, commonly known as the 'white grub,' often does considerable (injury) to the roots of grasses, strawberries and other plants. P. ANXiA LeC. Bar Harbor, June 11. DiCHELONYx Harris D. ELONGATA Fab. Bar Harbor, June 13-22. D. suBviTTATA LcC. Bar Harbor ; Echo Lake, June 17-July 12. D. DiLUTA Fall. Bar Harbor, June 22. Euphoria Burmeister E. iNDA Linn. Acadia (Robinson) Mt., Sept. 7. On sap ooz- ing from gall-infested acorns of the scrub oak; Sargent Mt. (Moore). Trichiotinus Casey (Trichius auct.) T. AFFiNis G. & P. Bar Harbor; S. W. Harbor; Long Pond, June 17-July 16. Trogidae. Skin beetles Trox Fabricius T. UNisTEiATus Bcauv. Salisbury Cove, Aug. 7. On the dried skin and hoofs of a horse. LucANiDAE. Stag beetles Platycerus Geoffroy P. DEPRESSus LeC. Beehive Mt., Aug. 13 (Sanford). Cerambycidae. Long-horned or wood-boring beetles Tragosoma Serville T. DEPSARiuM var. HARRisi LcC. S. W. Harbor, July, 1917 (Fernald) ; Bar Harbor, July 29; Ironbound Isl. (Blaney). Rare; the larva lives in spruce and pine. AsEMUM Eschscholtz A. MOESTUM Hald. Bar Harbor; Long Pond, June 11-20. The larva infests pine and spruce. THE MOUNT DESERT REGION 111 Ehagium Fabricius R. LiNEATUM Oliv. Bar Harbor, June 11. The larva lives under the bark of pine and spruce, especially logs that have been recently cut. Hapalosalia Casey H. sPHAERicoLLis Say. Bar Harbor ; S. W. Harbor, June 16- July 11. EvODiNUS LeConte E. MONTicoLA Rand. Bar Harbor; S. W. Harbor, June 8-22. Gaurotes LeConte G. CYANiPENNis Say. Jordan Pond, June 10. G. ABDOMiNALis Bland. Common, June 10-July 21. Anthophilax LeConte A. viRiDis LeC. Long Pond ; Echo Lake, June 27-July 17. It frequents the spruce. JuDOLiA Mulsant J. SEXMACULATA Liuu. Echo Lake, July 12-17. Brachyleptura Casey B. RUBRiCA Say. Bar Harbor, July 29. The larva lives in beech. B. VAGANs Oliv. Bar Harbor; S. W. Harbor; Echo Lake. The larva lives in yellow birch. B. CANADENSIS Fab. Common, July 29-Sept. 1, The larva lives in hemlock. Parallelina Casey P. suBARGENTATA Kby. Eaglc Lake; Bar Harbor, July 18. Strang alepta Casey S. LiNEOLA Say. Bar Harbor, June 28-July 17. S. puBERA Say. Bar Harbor, June 11. S. \^TTATA Oliv. Common, July 14—24. This species was bred from larch by M. W. Blackman. Strangalia Serville S. suBHAMATA Raud. Bar Harbor; Green Mt., July 21- Aug. 17. S. PLEBEJA Rand. Bar Harbor, Julv 19-28. 112 BIOLOGICAL SURVEY OF Leptura Liuiiaeus L. NiGRELLA Sav. Loiig Pond, June 27. L. CHRYSocoMA Kby. Common, July 10-23. L. PRoxiMA Say. Bar Harbor, July 19-20. L. BiFORis Newn. Duck Brook; Green Mt. ; N. E. Harbor, July 30-Aug. 19. L. MUTABiLis Newn. Bar Harbor ; S. W. Harbor, June 8-July 25. The larva lives in beech. L. PEDALis LeC. S. W. Harbor ; Long Pond, July 15-16. Bellamira LeConte L. scALARis Say. 'Mt. Desert' (P. S. Sprague). The larva lives in yellow birch and maple. Typocerus LeConte T. vELUTiNUS Oliv. Common, July 20-Sept. 6. T. ACUTiCAUDus Casey. S. W. Harbor, July 20. Desmocerus Serville D. PALLiATus Forst. Elder-borer. Bar Harbor, July 18-29. EoPALOPUS Mulsant R. SANGUiNicoLLis Hom. S. W. Harbor, July 10, 1910 (Fer- nald). Callidium Fabrieius C. vioLACEUM Linn. (C. janthinum LeC). Near Bar Harbor, July 5 (R. H. Burton). Phymatodes Mulsant P. DiMiDiATus Kby. Echo Lake, July 17. Neoclytus Thomson N. MURiCATULus Kby. Bar Harbor; S. W. Harbor; Long Pond, July 16-29. N. ACUMiNATus Fab. Long Pond, June 27. Xylotrechus Chevrolat X. uNDULATus var. Fuscus Kby. Near Bar Harbor, Aug. 4 (R. H. Burton). THE MOUNT DESERT EEGION 113 Anthoboscus Clievrolat A. RUEicoLA Oliv. Salisbury Cove; S. W. Harbor, July 10- Aug. 21. The larva lives in oak. MoNOCHAMUS Serville {Monohammus auct.) M. NOTATus Drury (M. confusor Kby.). Gray pine-borer. Bar Harbor; N. E. Harbor; Salisbury Cove, July 20-Aug. 22. The 'sawyer' of the lumbermen; it infests both pine and spruce. M. scuTELLATus Say. Black pine-borer. S. W. Harbor; Long Pond; Bar Harbor, July 11-20. The larva of this species also bores into the pine and spruce. MicROGOES Casev M. ocuLATus LeC. Echo Lake, June 17. Saperda Fabrieius S. OBLiQUA Say. Alder borer. Tremont, Aug. 23. S. CANDIDA Fab. Round-headed apple-tree borer. S. W. Har- bor; Echo Lake, July 15- Aug. 24. The larva is injurious to the apple, quince, hawthorn, and shadbush. S. CALCAEATA Say. Poplar borer. Ironbound Isl. (Blaney). S. coNCOLOR var. unicoloe Felt & Jout. Near Bar Harbor (E. H. Burton). This also infests the poplar. Oberea Mulsant 0. PALLIDA Casey. Near Bar Harbor (R. H. Burton) ; Salis- bury Cove, Aug. 11. CiiRYsoMELiDAE. Leaf beetles Donacia Fabrieius D. PEoxiMA Kby. Bar Harbor; Witch Hole Pond, June 7- Sept. 11. On leaves of the water lily. D. ciNCTicoENis Newn. 'Mt. Desert' (McAfee). D. suBTiLis Kunze. Bar Harbor, July 20-29. On leaves of the water lily. D. SUBTILIS var. fulgens LeC. Bar Harbor, July 21. On leaves of the water lily. D. BiiMPEEssA Melsh. (torosa LeC). Upper Hadlock Pond, June 10. 114 BIOLOGICAL SURVEY OF D. DiSTiNCTA LeC. Bar Harbor, June 11. D. pusiLLA Say. Witch Hole Pond, June 13. D. METALLiCA Alireus. Bar Harbor, June 11. D. EMARGiNATA Kby. S. W. Harbor ; Bar Harbor, July 15-20. D. EUFA Say. Witch Hole Pond, June 13. D. HiRTicoLLis Kby. Salisbury Cove, Aug. 10. Orsodachna Latreille 0. ATEA Ahrens. Witch Hole Pond, June 13. Syneta Lacordaire S. FERRUGiNEA Germ. Duck Brook, June 13. It feeds on birch leaves. Lema Fabricius L. BRUNNicoLLis LcC. Salisbury Cove, July 15. Chlamys Knoeh C. GiBBosA Fab.? Salisbury Cove, July 15. Larva. Exema Lacordaire E. coNSPERSA Mann. Salisbury Cove, July 15. Pachybrachys Eedtenbacher P. ATOMARius Melsh. S. W. Harbor, Sept. 3 (Alexander). P. OTHONus Say. Salisbury Cove, July 15-25. P. HEPATicus Melsh. S. W. Harbor, June 20. Cryptocephalus Geoffroy C. NOTATus var. quadrimaculatus Say. S. W. Harbor ; Salis- bury Cove, July 11-Aug. 20. It feeds on the leaves of oak. C. iNCERTus Oliv. Breakneck Pond, Sept. 8. It feeds on the leaves of cranberry. DiACHUs LeConte D. AURATus Fab. Echo Lake; S. W. Harbor; Bar Harbor, July 12-Aug. 10. Triachus LeConte T. ATOMus Suffr. Long Pond, July 16. It feeds on the leaves of bayberry and blueberry. T. CEEiNus LeC. Bar Harbor (Moore). THE MOUNT DESEET REGION 115 Adoxus Kirby A. oBscuRus Linn. S. W. Harbor; Long Pond, July 19- Aug. 21. Paria LeConte P. CANELLus var. QUADRiGUTTATA LeC. Long Pond, June 26. Leptinotarsa Stal L. DECEMLiNEATA Say. Potato beetle. Common, June 22- July 29. Calligrapha Erichson C. ELEGANs Oliv. Jordau Pond; Bar Harbor; Witch Hole Pond, June 10-Aug. 6. It feeds on Bidens. C. scALARis LeC. Common, June 10-Sept. 2. It feeds on the leaves of elm and alder. C. PHiLADELPHicA Liuu. Commou, June 9-Sept. 8. It feeds on Spiraea and alder. C. PHILADELPHICA var. spiREAE Say. 'Mt. Desert,' July (Me- Atee). C. BiGSBYANA Kby. Salisbury Cove, July 15. It feeds on willow. Gastroidea Hope G. POLYGONi Linn. Bar Harbor, June 17. It feeds on Poly- gonum. Lima Megerle L. LAPPONiCA Linn. Long Pond; Jordan Pond; Bar Harbor, June 10-July 16. It feeds on willow. L. TREMULAE Fab. Bar Harbor, July 10. Phyllodecta Kirby P. vuLGATissiMA LiiHi. Eagle Lake; Seal Harbor (Prof. Stowell), July 18- Aug. 15. It feeds on willow and poplar. Trirhabda LeConte T. viRGATA LeC. Common, July 21-Sept. 6. It feeds on gol- denrod (Solidago). Galerucella Crotch G. CAVicoLLis LeC. Long Pond ; S. W. Harbor, June 16-July 27. It feeds on the leaves of cherry. 116 BIOLOGICAL SURVEY OF G. NYMPHAEAE Liini. Mt. Deseit, July (McAtee). It feeds on the leaves of the water lilies. G. DECORA Say. S. W. Harbor, Bar Harbor, June 27-Aug. 18. It feeds on the leaves of willow. G. ALNi Fall. S. W. Harbor; Salisbury Cove, June 27-July 15. It feeds on the leaves of alder. G. KALMiAE Fall. Long Pond; Bar Harbor, July 17-Aug. 18. It feeds on the leaves of laurel. MoNOXiA LeConte M. puNCTicoLLis Say. Salt marsh at the Narrows, Aug. 3- Sept. 12. DiABROTiCA Chevrolat D. viTTATA Fab. Striped squash beetle. Bar Harbor; Long Pond, June 19-Sept. 7. It feeds on the leaves of squash, cucumber, etc. LuPERODES Motschulsky L. MERACA Say. Long Pond ; Eagle Lake ; Bar Harbor, June 27-July 22. It feeds on the wild rose. Oedionychis Latreille Oe. subvittata Horn. Common, June 27-Sept. 11. DisoNYCHA Chevrolat D. QuiNQUEviTTATA Say. Bar Harbor, Sept. 13. Haltica Geoffroy H. RosAE Woods. S. W. Harbor, July 11. It feeds on the wild rose. H. iGNiTA 111. Bar Harbor, June 13, Chalcoides Foudras C. HELxiNEs Linn. Salisbury Cove; Bar Harbor, July 14-24. It feeds on willow and poplar. Epitrix Foudras E. cucuMERis Harr. 'Cucumber flea-beetle.' Bar Harbor, Sept. 9. It feeds on the leaves of cucumber, potato, etc. Systena Clark S. PALLicoRNis Schiff. Grccu Mt., Aug. 17. It feeds on Polygonum. THE MOUNT DESERT EEGION 117 LoNGiTARSUs Latreille L. MELANURUS Melsli. ? Bar Harbor, Aug, 20. Phyllotreta Foudras P. siNUATA Steph. Bar Harbor, July 24. P. ROBUSTA LeC. Bar Harbor, July 24. PsYLLiODES Latreille P. PUNCTULATA Melsli. S. W. Harbor, July 11. It feeds on the leaves of dock and rhubarb. Anoplitis Chapuis A. iNAEQUALis Wcb. Salisbury Cove; Echo Lake; Bar Har- bor, July 12-Sept. 11. Chalepus Thunberg {Odontota auet.) C. DORSALis Thunb. Bar Harbor. The larva mines the leaves of the locust (Robinia). MiCRORHOPALA Balj M. XERENE Newn. Bar Harbor, July 27. The larva mines the leaves of goldenrod (Solidago). M. EXCAVATA Oliv. Commou, July 11-Sept. 6. Chelymorpha Boheman C. CASsiDEA Fab. (C. argus Liclit.). Salisbury Cove, July 14 and Aug. 5 (Sanford). It feeds on the morning glory. Convolvulus sepium var. americanus. The beetles were all reddish brown in July and light yellow in August. Chirida Chapuis (Coptocycla auct.) C. GUTTATA Oliv. Salisbury Cove, July 14 and Aug. 7. It also feeds on the morning glory. Some specimens were reddish brown in color, resembling Metriona purpurata Say. Platystomidae {Anthrihidae) j Eurymyctor LeConte ! i E. FASCiATus Oliv. S. W. Harbor, June 21. \ Allandrus LeConte \ A. BEEvicoRNis Frost. S. W. Harbor, July 19. 118 BIOLOGICAL SURVEY OF CuRCULiONiDAE. Weevils or snout-beetles AuLETES Schonherr A. ALBOVESTITA Blatcli. Greeii Mt. ; Salisbury Cove, Aug. 11-17. A. TENuiPEs LeC. Salisbury Cove, July 15. Ehynchites Herbst R. cYANELLus LcC. Loiig Poiicl, July 16. Attelabus Linnaeus. Leaf-rolling weevils A. RHOis Boh. Common, June 21-July 16. The beetles make compact, cylindrical rolls of the leaves of the alder, deposit- ing a single egg in each; the larva feeds on the interior portion of the roll and when full-grown leaves it and enters the ground to pupate. A. BiPusTULATA Fab. Bar Harbor, June 16. This species rolls the leaves of the oak. Apion Herbst A. PENNSYLVANicuM Boli. Narrows, Aug. 13. A. wALSHi Sm. S. W. Harbor ; Bar Harbor ; Long Pond, July 15-Sept. 7. POLYDRUSUS Germar P. iMPRESSiFEONs Gyll. Bar Harbor, June 11-Aug. 10. HoRMORUS Horn H. UNDULATUS Uhler. Seal Harbor, Aug. 9 (Stowell). SciAPHiLUS Schonherr S. MURiCATus Fab. Common, June 11-Sept. 10. Barynotus Germar B. scHOENHERRi Zett. S. W. Harbor, June 24; Seal Harbor, Aug. 9 (Stowell). Bakypeithes Jacquelin-Duval B. PELLuciDus Boh. Bar Harbor, June 16-22 (Moore). Brachyrhinus Latreille (Otiorhynchus Germar) B. suLCATus Fab. N. E. Harbor (Minot) ; Witch Hole Pond; Seal Harbor (Stowell), July 26. B. ovATus Linn. Strawberry-root weevil. Bar Harbor (Moore) ; Long Pond, June 27. The larva griddles the crown of strawberry plants. THE MOUNT DESERT REGION 119 SiTONA Germar S. FLAVEscENs Mai'sli. Salisbiirj Cove, July 15. S. TIBIALIS Hbst. Bar Harbor; Salisbury Cove, June 13- July 15. S. HispiDULus Germ. Bar Harbor, Sept. 11. Hyperodes Jekel (Macrops Kirby) H. DisTiNCTUs Dietz. ? Pretty Marsh, June 20. H. sPARsus Say. Newport Cove, July 11. PissoDES Germar P. sTROBi Peck. White-pine weevil. Bar Harbor, Aug. The larva kills the leading shoot of the white pine and some- times spruce, causing the tree to become more or less de- formed. P. AFFiNis Rand. Salisbury Cove; Bar Harbor, June 9-July 29. Similar to the above species, but larger. Hylobius Germar H. coNFUSus Kby. Salisbury Cove, July 14. Infests pine. Hypomolyx LeConte H. picEus De G. {H. pineti Fab.). 'Mt. Desert'; Ironbound IsL, Aug. (Blaney). Tychius Germar T. piciROSTRis Fab. Bar Harbor ; S. W. Harbor ; Long Pond, June 20-27. Magdalis Germar M. HispoiDEs LeC. S. W. Harbor, July 11. Balaninus Germar B. NASicus Say. Salisbury Cove, July 18. From red oak and infesting the acorns. Tachypterellus Fall and Cockerell T. QUADRiGiBBus Say. 'Apple Curculio.' Bar Harbor, June 17. Infests both the fruit of the apple and thorn. 120 BIOLOGICAL SURVEY OF Anthonomus Germar A. scuTELLATus Gyll. Loiig Pond ; Salisbury Cove ; Bar Har- bor, June 11-July 25. A. PROFUNDUS LeC. Eagle Lake, July 18. Frequents the huckleberry. A. coRvuLus LeC. S. W. Harbor, July 13. A. siGNATus Say. 'Strawberry weevil.' Echo Lake; Salis- bury Cove, June 27-July 15. Destroys the flower-buds of the strawberry. A. suBFASCiATus LeC. Bar Harbor; S. W. Harbor, Aug. 10- 30. PSEUDOANTHONOMUS Dietz P. CRATAEGi Walsh. S. W. Harbor, July 13. Orchestes Illiger 0. NIGER Horn. Salisbury Cove, July 15. 0. PALLiDicoRNis Say. S. W. Harbor; Salisbury Cove; Bar Harbor, July 15-Sept. 9. MiABUS Stephens M. HispiDULus LeC. Salisbury Cove, July 22. AcoPTUs LeConte A. suTURALis LeC. S. W. Harbor, July 11. AULEUTES Dietz A. NEBULOSus LeC. S. W. Harbor; Salisbury Cove, July 13-15. Ceutorhynchus Germar C. CYANiPENNis Germ. Bar Harbor, July 19. C. SEPTENTRioNALis Gyll. Bar Harbor, July 19. On 'hedge mustard' {Sisymhrium officinale). Pelenomus Thomson P. suLcicoLLis Fab. N. E. Harbor, July 26 (Minot). Fre- quents Polygonum. Ehinoncus Schonherr R. PYRRHOPus Boh. Bar Harbor, July 19-24. Feeds on Rumex. THE MOUNT DESERT REGION 121 Cryptorhynchus Illiger C. LAPATHi Linn. 'Willow. Borer.' Seal Harbor, Aug. (Stow- ell). Introduced from Europe and injurious to willows. Sphenophorus Sclionherr S. cosTiPENNis Horn. Meadow. Salisbury Cove, July 14. ScoLYTiDAE. Bark beetles POLYGRAPHUS Erichson p. RUFiPENNis Kby. Spruce bark-beetle. N. E. Harbor; S. W. Harbor, June. Infests dying or felled spruce. Gnathotrichus Eichhoff E. MATERiARius Fitcli. ' Piue wood-stainer.' Bar Harbor, June 16. Excavates galleries in the sapwood and heart- wood of dying or recently felled pine and spruce. PiTYOPHTHORUS Eichlioff P. PULiCARius Zimm. 'Mt. Desert Island, Aug. 19, 1919, from white pine twigs' (M. W. Blackman). P. BiovALis Blackman. 'Mt. Desert Island, Aug. 19, 1919, from white pine twigs' (M. W. Blackman). PiTYOGENES Bedel p. HOPKiNSi Sw. Bar Harbor, June 7. Ips De Geer (Tomicus Latreille) I. piNi Say. Pine bark-beetle. Wood Lake, Aug. 8 (Sanford). Orthotomicus Ferrari 0. CAELATus Eich. Wood Lake, Aug. 8 (Sanford). Infests pine and spruce. Dryocoetus Eichhoff D. AMERicANus Hopk. Loug Poud, July 16. Order HYMENOPTERA Symphyta. Sawflies and horn-tails Pamphilidae. Leaf-rolling sawflies Itycorsia Konow 1. PULLATA Cress. X. E. Harbor, Aug. 10 (Minot). 122 BIOLOGICAL SURVEY OF Cephaleia Panzer C. n.sp. Salisbury Cove, July 12. Anoplolyda Costa A. PALLiMACULATA Nort. S. W. Harbor, July 15. A. RUFOFASCiATA Nort. Newport Cove; Great Head, July 11. Tenthredinidae. Typical sawflies Neodiprion Kohwer N. ABBOTTi Leach. 'Mt. Desert, Aug., 1872' (Cora H. Clarke). The larva feeds on white pine. N. ABiETis Harr. N. E. Harbor, Aug. 11 (Minot). The larva feeds on spruce, fir, and pine. Hemitaxonus Ashmead H. DUBiTATus Nort. Bar Harbor, June 15. The larva feeds on the sensitive fern {Onoclea sensihilis). H. ALBiDOPicTUs Nort. Echo Lake, June 17. Taxonus Hartig T. NiGRisoMUS Nort. S. W. Harbor, July 11. The larva feeds on dock (Rumex). T. UNiciNCTus Nort. Green Mt. ; Bar Harbor; Echo Lake, June 15- July 25. Empria Le Peletier E. sp. Bar Harbor, June 13. Epitaxontjs MaeGillivray E. ALBIDOPICTUS Nort. Echo Lake; Eagle Lake, June 17- July 18. Emphytina Rohwer E. VANDuzEEi Roh. Jordaii Pond, June 10. Emphytus Klug E. BASALis Klug. Salisbury Cove, July 25. Parataxonus MaeGillivray P. MULTICOLOR Nort. Echo Lake; Seal Cove; S. W. Harbor, June 20-July 17. The larva feeds on white and yellow birch. THE MOUNT DESERT REGION 123 Strongylogastroidea Ashmead S. APicALis Say. Upper Hadlock Pond; Bar Harbor, S. W. Harbor, June 10- July 15. The larva feeds on Rubus. S. PALLicoRNis Nort. Bar Harbor, July 24. S. TERMiNALis Say. Echo Lake; S. W. Harbor, June 22- July 15. DiMORPHOPTERYX Ashmead D. MELANOGNATHUS Roli. Bar Harbor, Aug. 17. D. piNGuis Nort. Salisbury Cove, July 14. The larva feeds on birch, cherry, maple, etc. D. oRONis MacG. Salisbury Cove, July 25. POLYSELANDRIA MacGillivray P. FLAViPEs Nort. Jordan Pond; S. W. Harbor, June 10- July 15. The larva feeds on brake (Pteris aquilina). Strongylogaster Dahlbom S. TACITUS Say. Upper Hadlock Pond, June 10. Dolerus Jurine D. sp. S. W. Harbor, June 21. LoDERUS Konow L. ALBiFRONS Nort. Seal Cove, June 20. Pachyprotasis Hartig P. RAPAE Linn. Echo Lake, July 12. Lagium Konow L. ATR0\^0LACEUM Nort. Bar Harbor; LTpper Hadlock Pond, June 10. Neopus MacGillivray N. QUATuoRDECiMPUNCTATUs Nort. Bar Harbor, June ^. Tenthredella Eohwer T. ANGULiFERA Nort. Bar Harbor, June 9-July 21. T. BASiLARis Prov. S. W. Harbor, June 20. T. ExiMiA Nort. Salisbury Cove, Aug. 9. T. GRANDis Nort. Echo Lake, July 17. T. LEucosTOMA Kby. Bar Harbor ; Echo Lake ; S. W. Harbor, June 9-July 20. 124 BIOLOGICAL SURVEY OF T. MELLiNA Nort. Bar Harbor; Salisbury Cove, July 17-27. T. MUTANs Nort. S. W. Harbor, July 15-18. T. RUFOPECTA Nort. N. E. Harbor, July 1-8 (Minot). T. RUFOPECTA var. MELLicoxA Prov. Long Pond ; Bar Harbor, July 16-18. T. SECUNDA MacG. S. W. Harbor ; Echo Lake, July 13-17. T. SEMiRUBRA Nort. Bar Harbor ; Green Mt. ; Salisbury Cove, June 9-Aug. 7. T. siGNATA Nort. Bar Harbor; S. W. Harbor, June 9-22. T. TRICOLOR Nort. S. W. Harbor, July 15. T. vERTiCALis Say. S. W. Harbor; Echo Lake; Bar Harbor, June 21-July 26. T. XANTHA Nort. Seal Cove, July 10. Macrophta Dahlbom M. FASciALis Nort. S. W. Harbor ; Long Pond, June 25-July 16. The larva feeds on elder. M. FLAVicoxA Nort. Bar Harbor; S. W. Harbor, June 9- July 15. M. iNCERTA Nort. Jordan Pond; Echo Lake; S. W. Harbor, June 10-July 10. M. NIGRA Nort. Echo Lake, July 12. M. TRisYLLABA Nort. Commoii, June 11-July 18. The larva feeds on elder. M. VARiA Nort. Bar Harbor ; Long Pond ; S. W. Harbor, June 11-July 26. M. zoNALis Nort. S. W. Harbor; Long Pond; N. E. Harbor, July 13-26. Tenthredo Linnaeus (Allantus Jurine) T. BASiLARis Say. Common, July 10-Sept. 7. Hemichroa Stephens H. AMERICANA Prov. Seal Cove, June 20 (Sanford). Pristiphora Latreille P. BiviTTATA Nort. S. AV. Harbor, July 13. The larva feeds on Spiraea. P. MURTFELDTiAE Marl. Eclio Lake ; S. W. Harbor, June 21- July 10. P. sp. near pallicoxa Roll. S. W. Harbor, July 29. THE MOUNT DESERT REGION 125 Pachynematus Konow P. coRNiGERA Nort. Eclio Lake ; Seal Cove ; Bar Harbor, June 20-Aiig. 18. Croesus Leach C. LATiTARsus Nort, Bar Harbor ; Long Pond ; Narrows, June 15-Aug. 13. The larva feeds on birch. Trichiocampus Hartig T. IRREGULARIS Djar. Echo Lake, June 17-July 17. Pteronidea Eohwer P. MENDicAS Walsh. S. W. Harbor, Sept. 5 (Alexander). P. siMiLARis Nort. S. W. Harbor, July 11. P. TRICOLOR Marl. Bar Harbor, July 27. PONTANIA Costa P. POMUM Walsh. Willow apple gall. Bar Harbor ; Salisbury Cove (Sanford). The larvae form galls on the leaves of willow. P. pisuM Walsh. S. W. Harbor, July 11. The larvae form subsphaerical galls on the under side of the leaves of willow. P. sp. S. W. Harbor, July 11. Cryptocampus Hartig (Euura Newman) C. OVUM Walsh. Willow egg gall. Echo Lake, July 12. The larvae form egg-shaped galls on the twigs of willow. TOMOSTETHUS KoilOW T. BARDus Say. Bar Harbor, June 7. The larva feeds on ash. Blennocampa Hartig B. sp. Bar Harbor, July 24. Argidae Arge Schrauk (Hylotoma Latreille) A. CLAVicoRNis Fab. Common, July 17-Aug. 19. The larva feeds on willow. A. MACLEAYi Leach. Bar Harbor; Green Mt.; N. E. Harbor, June 13-Aug. 23. The larva feeds on wild cherry, birch, mountain ash, etc. L i § R A R Y -oj v^Z 126 BIOLOGICAL SURVEY OF A. PECTORALis Leach. Echo Lake; Salisbury Cove, June 27- July 13. The larva feeds on birch. A. scAPULAEis Klug. Salisbury Cove, July 15. The larva feeds on white birch and elm. A. sp. Salisbury Cove, July 12. Sterictiphora Billberg S. EBENA Nort. Jordan Pond, June 10. CiMBICIDAE CiMBEX Olivier C. AMERICANA Lcacli. American sawfly or 'mllow worm.' Salisbury Cove ; Bar Harbor, July 13-19. The larva feeds on willow, poplar, elm, etc. The large white larva is con- spicuous on willow. C. AMERICANA var. ALBA Nort. Seal Cove (Sanford) ; Salis- bury Cove, June 20-July 24. C. AMERICANA var. LAPORTEi Lc Pel. Salisbury Cove, July 24. Trichisoma Leach T. TRIANGULUM Kby. Newport Cove; Great Head; Salisbury Cove, July 11-23. The larva feeds on willow, cherry, alder, etc. Cephidae. Stem sawflies Janus Stephens J. BiMACULATA Nort. S. W. Harbor, July 10. Xiphydriidae XiPHYDRiA Latreille X. TIBIALIS Say. Salisbury Cove, July 15 (Olsen). SiRiciDAE. Horn-tails SiREx Linnaeus S. JuvENCus var. cyaneus Fab. Ironbound Isl., July (Blaney). Urocerus Geoffroy U. ALBicoRNis Fab. Bar Harbor, July 24. The larva bores in spruce and fir. U. CREssoNi Nort. S. W. Harbor, July 29. THE MOUNT DESERT REGION 127 Braconidae Opius Wesmae] 0. PROVANCHERI D. T. Greeii Mt., July 25. Apaistteles Foerster A. ACRONYCTAE Rllev. Salisbiirv Cove, July 15, Parasitic on Acronycta sp. A. ARisTOTELiAE Viei'. S. W. Harbor ; Salisbury Cove, July 14, 15. Parasitic on Gelechia trialhamaculella. A. CACOECiAE Riley, S. W. Harbor; Bar Harbor, July 13-26. Parasitic on Cacoecia. A. coNANCHETORUM Vicr. Bar Harbor, July 24. A. EDWARDsii Riley. S. W. Harbor; Green Mt., July 20-28. Parasitic on Vanessa atalanta. A. EPiNOTiAE Vier. Witch Hole Pond ; S. W. Harbor, Aug. 18- Sept. 6. Parasitic on Euarmonia. A. FisKEi Vier, Salisbury Cove, July 15. A. GRiFFiNi Vier. S. W. Harbor, June 27. Parasitic on 'cut- worms,' Feltia sp. A. LONGicoRNis Prov. S. W. Harbor ; Long Pond, July 10-19. A, MELANOPUS Vier. Echo Lake; Salisbury Cove, June 17- July 18. A, MiANTONOMoi Vlcr. S, W. Harbor, July 14, A, oRNiGis Weed, Green Mt,, Aug. 17. Parasitic on Litho- colletis sp. A. ORBENAE Forbes. Long Pond, July 10. Parasitic on Ever- gestis sp. A. POLYCHROsiDis Vicr. Common, July 18-25. Parasitic on Cocoecia rosaceana. A. ROHWERi Mues. S. W. Harbor, June 21. Parasitic on Gracilaria. A, TiscHERiAE Vicr. S, W. Harbor, Aug. 11, Parasitic on Tischeria. A. XYLiNus Say, Common, June 10-Aug, 16, Parasitic on one of the 'cutworms,' Agrotis c-nigrum. 128 BIOLOGICAL SURVEY OF MiCROGASTER Latreille M. BREviCAUDA Prov. Salisburv Cove; S. W. Harbor, July 14, 19. M. EPAGOGES Gahan. Salisbury Cove, July 18. Parasitic on Epagoe sulfiireana. M. FACETOSA Weed. Common, July 10-20. Parasitic on the clover-moth Plathypena scahra. M. MELLiGASTER Prov. {rubrlcoxa Prov.). Common on the marshes at the Narrows, July 27. MiCROPLiTis Foerster M. ALASKENSis Aslim. S. W. Harbor; Salisbury Cove, July 14-18. Parasitic on Hadena and Plusia. M. CERATOMiAE Rilcy. S. W. Harbor; Bar Harbor, July 20- 24. Parasitic on the larvae of Sphingidae, Ceratomia, Paonias, and Sphinx. M. FELTiAE Mues. S. W. Harbor, July 19. Parasitic on 'cut- worms' of the genus Feltia. M. n.sp. (Muesebeck). Bar Harbor, July 24. MiCROBRACON Ashmead M. APicATus Prov. Bar Harbor ; Salisbury Cove ; S. W. Har- bor, July 18-30. M. GELECHiAE Aslim. Bar Harbor, Aug. 18. Parasitic on various species of Gelechia and other Microlepidoptera. M. LUTus Prov. Bar Harbor, July 24. M. MELANASPis Ashm. S. W. Harbor, July 13. M. MEROMYZAE Gahau. S. W. Harbor; Long Pond, July 13- 16. Parasitic on Meromyza americana. M. NANUS Prov. S. W. Harbor, June 27. M. NiTiDUS Prov. S. W. Harbor, July 13. M. NUFERUs Cress. Salisbury Cove, July 25. M. piNi Mues. Long Pond, June 17. Parasitic on the white pine w^eevil Pissodes strohi. M. poDUNKORUM Vicr. Bar Harbor, Aug. 15. M. PYGMAEUs Prov. S. W. Harbor, Sept. 6. Parasitic on Microlepidoptera of the genus Coleophora. THE MOUNT DESERT REGION 129 M. TENuicEPs Mues. (Proc. U. S. Nat. Museum, vol. 67, art. 8, p. 46, 1925). Bar Harbor; Salisbury Cove; Narrows, etc. July 10-25. Parasitic on weevils. M. n.sp. (Muesebeck). Bar Harbor, Aug. 16. COELOiDES Wesniael C. sp. Seal Cove Brook, Sept. 8. Meteorus Haliday M. COMMUNIS Cress. S. W. Harbor, July 11. Parasitic on Hadena and other moths. M. DiMiDiATus Cress. N. E. Harbor; Eagle Lake, July 11-18. Parasitic on Desmia funeralis. M. HYPHANTRiAE Rllcy. S. W. Harbor ; Bar Harbor, June 21- July 26. Parasitic on fall webworm, American tent cater- pillar, tussock moth, etc. M. PALLiTARSis Crcss. Loug Pond, Sept. 7. N. TAURicoRNis Prov. Bar Harbor, June 13-Aug. 10. M. VULGARIS Cress. Bar Harbor; S. W. Harbor, June 13- Sept. 6. Parasitic on various species of 'cutworms,' Agro- tis ypsilon, Feltia subgothica, Lycophotia saucia, etc. Macrocentrus Curtis M. sp. Bar Harbor, June 7 ; Salisbury Cove, July 19. Bassus Fabricius B. BicoLOR Prov. Bar Harbor; Salisbury Cove, Aug. 13-18. B. ciNCTus Cress. Bar Harbor, Aug. 18. B. PERFORATus Prov. Bar Harbor, Aug. 14. B. TiBiATOR Prov. Green Mt., Aug. 17. Agatiiis Latreille A. FEMORATOR Prov. Bar Harbor; Green Mt., Aug. 10-17. Atanycolus Foerster A. sp. Bar Harbor, Aug. 18-24. Iphiaulax Foerster I. AUGUSTUS Vier. S. W. Harbor, July 20. Cyanopterus Haliday C. n.sp. Bar Harbor, July 29. 130 BIOLOGICAL SURVEY OF AscOGASTER Wesmael A. CARPOCAPSAE Vier. S. W. Harbor, July 13. Chelonus Juriiie C. BASiLARis Say. Echo Lake, July 17. C. Fissus Prov. Narrows, July 27. C. SASSACUS Vier. Narrows ; Salisbury Cove, July 25-27. C. SERicEus Say. Bar Harbor ; Salisbury Cove, July 24-Aug. 16. C. sp. Salisbury Cove, Aug. 11. Ehogas Nees (Aleiodes Wesmael) R. CANADENSIS Cress. S. W. Harbor; Echo Lake; Bar Harbor, July 13-22. R. iNTERMEDius Cress. S. W. Harbor; Bar Harbor; Salisbury Cove, June 27-July 18. R. TERMiNALis Cress. Bar Harbor, June 13 ; Salisbury Cove, Sept. 15 (Dahlgren). Zele Curtis Z. sp. Bar Harbor, June 7; S. W. Harbor, July 15. Helcon Nees. {Gymnocelus Foerster) H. PEDALis Cress. Bar Harbor, July 26. EuBADizoN Nees E. sp. Bar Harbor, Aug. 15. Coelinidea Viereck C. sp. Echo Lake, June 17. C. sp. S. W. Harbor, Aug. 23. Dacnusa Haliday D. sp. S. W. Harbor, Aug. 14. Spathius Nees S. sp. Echo Lake; S. W. Harbor; Bar Harbor, June 15- July 30. ICHNEUMONIDAE Cymodusa Holmgren C. DisTiNCTA Cress. S. W. Harbor, July 13. THE MOUNT DESERT REGION 131 Sagaritis Holmgren S. PATsuiKETORUM Viei'. Bar Harbor, July 30! S. PROVANCHERi D. T. Salisbury Cove, July 23-Aug. 24. Olesicampe Foerster 0. sp. Echo Lake, July 17. Angitia Holmgren A. MACER Cress. Bar Harbor, Sept. 10. A. sp. S. W. Harbor ; Echo Lake, June 17-22. Hyposoter Foerster H. ANNULiPES Cress. Bar Harbor; Salisbury Cove; S. W. Harbor, June 11-Sept. 10. Parasitic on Mamestra. Viereckiana Strand V. AssiTA Nort. Bar Harbor ; Echo Lake, June 11-27. V. viLLOSA Nort. Salisbury Cove, July 15. V. viTTicoLLis Nort. N. E. Harbor (Minot) ; Witch Hole Pond, June 26-July 30. Campoplex Gravenhorst C. RUFicoxA Prov. {Limneria ruficoxaFi'ov.). Narrows, June 26-Aug. 13. Campopligidea Viereck C. VARIABILIS Frankl. S. W. Harbor, July 20. Holocremus Foerster H. sp. S. W. Harbor, July 15. Apolima Foerster A. sp. Bar Harbor, July 10. Nemioblastus Thomson N. sp. Bar Harbor ; Green Mt., July 25- Aug. 18. Plectiscus Gravenhorst P. PARVUS Cush. Echo Lake, July 17. P. n.sp. Bar Harbor, Aug. 10. Aperileptus Foerster A. DELicATus Cush. Eclio Lake ; Long Pond, July 11-17. 132 BIOLOGICAL SURVEY OF Cremastus Gravenhorst C. roRBEsii Weed. S. W. Harbor, July 29. C. sp. Salisbury Cove, July 25. Catastenus Foerster C. sp. Echo Lake, July 17. Proclitus Foerster P. LONGiCAUDus Prov. Bar Harbor; Echo Lake; S. W. Har- bor, June 13-July 29. P. MELLiPEs Prov. Echo Lake ; Long Pond, July 12-17. P. ROYi Prov. Bar Harbor, Aug. 10. ExETASTES Gravenhorst E. NERvuLUs Say. S. W. Harbor; Eagle Lake; Bar Harbor, June 21-July 19. E. RUFOFEMORATus Prov. S. W. Harbor ; Narrows, July 15- Aug. 13. E. suAVEOLENs Walsli. Common, July 14-27. Cratophion Thomson C. AMERICANA Harrgtii. S. W. Harbor, Sept. 6. Xenoschesis Foerster X. sLossoNAE Cush. S. W. Harbor, July 10. X. n.sp. Echo Lake, July 19. Mesochorus Gravenhorst M. BASALis Cress. Bar Harbor ; Long Pond ; Seal Cove, June 13-Sept. 8. M. LUTEiPEs Cress.! Eagle Lake; Bar Harbor, July 18- Aug. 18. M. poLiTus Prov. S. W. Harbor ; Bar Harbor, July 30-Aug. 10. Leptopygus Foerster L. sp. Long Pond ; Salisbury Cove, Aug. 21. Banchus Fabricius B. BOREALis Cress. Bar Harbor; N. E. Harbor, June 7-July 8. B. PALLESCENS Prov. Bar Harbor, July 10. THE MOUNT DESERT REGION 133 Paniscus Gravenliorst P. GEMiNATus Say. Bar Harbor; Echo Lake; N. E. Harbor, June 7-July 20. Alexeter Foerster A. ALBOTARSATus Prov. S. W. Harbor, June 16-July 23. A. ANTENNATus Prov. Eclio Lake, July 12. Ophaltes Holmgren 0. GLAUCOPTERUS var. FLAViPENNis Prov. Common, July 14- Sept. 24. Paranomalon Viereck P. BASiLicoN Davis. Bar Harbor, June 13-21. P. LATERALIS Brull. S. W. Harbor ; Narrows, June 25-July 17. P. SEMiRUFUs Nort. S. W. Harbor, July 18. Labrorychus Foerster L. BOREALis Aslim. Echo Lake; S. W. Harbor; Salisbury Cove, June 17-Aug. 11. L. PRisMATicus Nort. S. W. Harbor, July 31. Parasitic on Ar chips cerassivorana. APHANiSTES Foerster A. HYALiNus Nort. Bar Harbor; Salisbury Cove; S. W. Har- bor, June 8-July 28. EuLiMNERiA Schmiedeknecht E. sp. Bar Harbor, July 13. Zaleptopygus Viereck Z. n.sp. Narrows, Aug. 13. Therion Curtis T. FusciPENNis Nort. Duck Brook, July 30. T. occiDENTALis Crcss. Echo Lake ; Salisbury Cove, June 17- Aug. 11. Thyreodon BruUe T. BRULLEi Vier. Echo Lake; Bar Harbor; S. W. Harbor, July 17-Aug. 24. 134 BIOLOGICAL SURVEY OF Ophion Fabricius 0. BiFovEOLATus Briill. Nan'ows ; Bar Harbor, June 9-17. 0. BiLiNEATus Sav. Bar Harbor; Salisbury Cove, July 25- Aug. 16. Parasitic on Feltia and other moths. Eniscospilus Stephens E. puEGATus Say. Echo Lake, July 12. Parasitic on Feltia and other moths. Eremotylus Foerster E. ARcuATus Felt. N. E. Harbor, Aug. 23 (Minot). Stiphrosomus Foerster S. rucATus Cress. S. W. Harbor; Jordan Pond, June 10- July 25. DiABORUS Foerster D. oRNATus (Walsh) Davis. Long Pond, Aug. 21. DiALGES Foerster D. FRONTALIS Davis. S. W. Harbor, June 25. D. FRONTALIS var. TRICOLOR Davis. Salisbury Cove, July 14. Tryphon Gravenhorst T. COMMUNIS Cress. Common, June 21-July 16. T. SEMiNiGER Cress. Salisbury Cove ; Long Pond, July 14-17. COSMOCONUS Foerster C. CANADENSIS Prov. Salisbury Cove ; Green Mt. ; N. E. Har- bor, July 19-Aug. 23. ScoPESis Foerster S. LAETus Prov. Common, July 22-Sept. 6. POLYBLASTUS Hartig p. FULviLiNEALis Hall. Witch Hole Pond, Aug. 18. P. PEDALis Cress. Echo Lake ; S. W. Harbor, June 17-July 20. P. TIBIALIS Cress. S. W. Harbor, July 20. MONOBLASTUS Hartig M. oBscuRELLus Cress. Bar Harbor, June 22. M. VARiFRONs Cress. Pretty Marsh; Salisbury Cove; Bar Harbor, June 20-Julv 14. THE MOUNT DESERT REGION 135 Hadrodactylus Foerster H. iNCEPTus Cress. Seal Cove, June 20. H. ELONGATus Cress. ? Echo Lake, July 12. Mesoleptidea Viereck (MrsoJeptus auct.) M. DECENS Cress. S. W. Harbor, June 16-July 29. M. RUFiGASTRA Prov. S. W. Harbor ; Bar Harbor, June 13- July 13. Callidiotes Foerster C. ALBOPLEURALis Prov. Loug PoHcl, Sept. 7. NoTOPYGUS Holmgren N. sp. N. E. Harbor, Aug. 10 (Minot). EcLYTUS Holmgren E. PLEURALis Prov. Eclio Lake, July 18. E. PERENNis Davis. Seal Cove, June 20. Laphyroscopus Foerster L. sp. Echo Lake, June 17. Mesoleius Holmgren M. sTRiATus Davis. Long Pond, Sept. 7. M. suBMARGiNATus Cress. Bar Harbor; S. W. Harbor, June 22-July 20. Spudaea Foerster S. sp. Bar Harbor, Aug. 18. Spanotecnus Foerster S. DECOLORATUs Cress. Long Pond, July 16. Synomelix Foerster S. sp. S. W. Harbor, July 10. Erromenus Holmgren E. DiMiDiATus Cress. Narrows; Bar Harbor; Salisbury Cove, June 9-July 23. E. MARGiNATUs Prov. S. W. Harbor, June 23. Euceros Gravenhorst E. couPERii Cress. Bar Harbor ; Echo Lake, July 10-18. E. MEDiALis Cress. S. W. Harbor, June 21. 136 BIOLOGICAL SURVEY OF Ctenopelma Holmgren C. n.sp. near nigricorne Prov. Bar Harbor, June 1-4. EuRYPBOCTUS Holmgren E. pETioLATus Davis. Long Pond, Sept. 7. ScoPiORUS Foerster S. ANALis Cress. S. W. Harbor, July 24. S. occiDENTALis Crcss. Long Pond, July 12-16. S. suBCRAssus Cress. S. W. Harbor, June 25. Cteniscus Haliday (Exenterus Hartig) C. oRBiTALis Cress. Echo Lake; S. W. Harbor, June 12- July 17. Syrphoctonus Foerster S. AGiLis Cress. Salisbury Cove ; Bar Harbor, Aug. 7-10. Promethes Foerster P. cosTALis Prov. Bar Harbor, June 7- Aug. 10. P. ELONGATus Prov. S. W. Harbor ; Narrows, July 13-Aug. 13. DiPLAZON Nees D. coNciNNus Cress. Bar Harbor; Echo Lake, Juue 7-17. D. LAETATORius Fab. Common, July 10-Aug. 13. D. puLCHRiPEs Prov. Bar Harbor; Salisbury Cove, June 22- July 14. D. scuTELLARis Crcss. Salisbury Cove, July 24. D. n.sp. Long Pond, Aug. 21. HoMOTROPUS Foerster H. ALBOPiCTUS Davis. Bar Harbor, July 26. H. HUMERALis Prov. Eclio Lake, June 17. Triclistus Foerster T. cuRVATOR Fab. S. W. Harbor, July 20. Chorinaeus Holmgren C. CARiNATus Cress. Bar Harbor ; Salisbury Cove, July 10-25. C. n.sp. Eagle Lake, July 18. Periope Curtis P. AETHiops Cress. S. W. Harbor, Sept. 8. THE MOUNT DESERT REGION 137 ExocHUS Gravenhorst E. DORSALis Cress. N. E. Harbor, Aug. 10 (Minot). i E. LAEVis Cress. Salisbury Cove, July 13. E. n.sp. S. W. Harbor, June 21. j ZoOTREPHES Foerster Z. SAGiNATUS Prov. S. W. Harbor, July 15. Atmetus Foerster i ( A. CARiNATus Prov. S. W. Harbor, July 13. j A. sp. N. E. Harbor, June 28 (Minot). Deleter Foerster ' D. UNDULATus Davis. Bar Harbor, Aug. 10. ; Khyssa Gravenhorst ', R. ALBOMACULATA Cress. Echo Lake ; S. W. Harbor ; Bar Har- bor, July 17-Aug. 24. R. LiNEOLATA Kby. N. E. Harbor, Aug. 10 (Minot). R. PERSUASORiA Linn. Bar Harbor, Aug. 10. i Megarhyssa Ashmead ] M. NORTONi Cress. Echo Lake ; Bar Harbor, June 27-July 21. j XOBiDES Latreille (Xylonomus Gravenhorst) • X. HUMERALis Say. Salisbury Cove, July 27. X. STIGMAPTERUS Sav. Salisbury Cove, June 9. PoEMENiA Holmgren P. ALBiPES Cress. N. E. Harbor, July 12- Aug. 10 (Minot). P. AMERICANA Cress. Salisbury Cove, July 24. Odontomerus Gravenhorst 0. AETHiops Cress. Bar Harbor, June 21. \ 0. CANADENSIS Prov. Eclio Lake; Long Pond, June 26-July j 12. Parasitic on Leptura, Dicerca and other wood-boring beetles. i 0. MELLiPEs Say. Bar Harbor, June 21-Sept. 11. ] Phytodietus Gravenhorst 1 P. ANNULATus Prov. Commou, July 15-Sept. 11. j Pezoporus Foerster P. sp. S. W. Harbor, June 21. j 138 BIOLOGICAL SURVEY OF PoLYSPHiNCTA Graveiiliorst P. BURGEssi Cress. Salisbury Cove, July 27. P. SLOSSONAE Davis. Bar Harbor ; S. W. Harbor ; Echo Lake, June 13-July 17. P. viciNA Prov. Echo Lake, June 17. Zaglyptus Foerster Z. iNCOMPLETUS Cress. Bar Harbor, June 13-Sept. 9. Glypta Gravenhorst G. ERRATiCA Cress. Common, June 17-Sept. 8. Parasitic on Polygonia comma. G. MACRA Cress. Salisbury Cove; S. W. Harbor; Narrows, July 10-Aug. 13. G. RUFOFASciATA Cress. Salisbury Cove, July 19. G. VARiPEs Cress. S. W. Harbor, July 22. G. CANADENSIS Cress. N. E. Harbor, June 29 (Minot). Clistopyga Gravenhorst C. CANADENSIS Prov. S. W. Harbor, July 25. Perithous Holmgren P. PLEURALis Cress. Salisbury Cove, July 19. Ephialtes Schrank (Pimpla auct.) E. AEQUALis Prov. Bar Harbor; S. W. Harbor, Aug. 10-23. Parasitic on the Tussock moth. E. AQUiLONiA Cress. Bar Harbor, June 8-Aug. 10. E. PEDALis Cress. Echo Lake ; Salisbury Cove ; N. E. Harbor, July 17-Sept. 24. Parasitic on the American tent and For- est tent caterpillars, Gypsy moth, etc. E. TENuicoRNis Cress. Common, June 7-Sept. 11. Parasitic on Aegeria. E. (Itoplectis) conquisitor Say. Bar Harbor; S. W. Har- bor, July 13-Sept. 6. Parasitic on the American tent cater- pillar, etc., etc, Apechtis Foerster A. ONTARIO Cress. Bar Harbor, June 7-Aug. 10. Parasitic on the spruce bud worm. A. piCTicoRNis Cress. Bar Harbor; N. E. Harbor (Minot), June 16-Aug. 10. THE MOUNT DESEET REGION 139 IsEROPUS Foerster I. coELEBS Walsh. Bar Harbor; S. W. Harbor, June 21-Sept. 6. Parasitic on the American tent and forest tent cater- pillars, tussock moth, spruce bud worm, etc. I. iNQUisiTORiELLus D. T. Bar Harbor; N. E. Harbor, June 13-July 15. Parasitic on the American tent caterpillar. Tussock moth, etc. Tromatobia Foerster T. EUFOPECTus Cress. Bar Harbor, June 13. Parasitic on the eggs of spiders in the nest of the Epeiridae. T. RUFOVARiATA Cress. N. E. Harbor; S. W. Harbor; Tre- mont, July 15-Aug. 23. D. Delomerista Foerster voviTA Cress. Bar Harbor, Aug. 16. ScAMBus Hartig S. PTERELAs Say. Narrows, Aug. 13. Epiurus Foerster E. ALBORiCTA Cress. Bar Harbor, June 13. E. sp. Salisbury Cove, July 15. Theronia Holmgren T. FULVESCENS Cress. Witch Hole Pond, Sept. 11. Ichneumon Linnaeus {Ephialtes Grav.) I. MACER Cress. Salisbury Cove, Sept. 15 (Dahlgren). I. MEsocENTRus Grav. N. E. Harbor (Minot) ; S. W. Harbor (Alexander), Aug. 23-Sept. 5. I. TUBERcuLATus Four. Bar Harbor ; S. W. Harbor, Sept. 6- 10. Meniscus Schrodte M. suPERBus Prov. Bar Harbor, June 9-22. Lissonota Gravenhorst L. ACCiDENTALis Cress. Green Mt., July 25. L. AMERICANA Crcss. S. W. Harbor, Sept. 6. L. ExiLis Cress. S. W. Harbor, July 20. 140 BIOLOGICAL SURVEY OF L. FRiGiDA Cress. Narrows, July 27. Parasitic on a sawfly (Nematus). L. NiGRiPEs Prov. Echo Lake, July 17. L. PARVA Cress. Bar Harbor; N. E. Harbor (Minot), July 20- Aug. 10. L. PHiLiPi Vier. Salisbury Cove, July 13-Aug. 9. L. pLEURALis Cress. Common, July 19-Sept. 6. L. PUNCTATA Cress. Bar Harbor, Sept. 10-13. L. RUBRicA Cress. Salisbury Cove, July 25. L. RUFiPEs Cress. S. W. Harbor, Sept. 6. L. vARiA Cress. Salisbury Cove ; N. E. Harbor; S. W. Harbor, July 25-Sept. 6. AsPHRAGis Foerster A. MiRABiLis Cress. S. W. Harbor, July 13. Cylloceria Schrodte C. ERRANS D. T. Common, July 18-Aug. 21. C. SEXLINEATA Say. S. W. Harbor, July 20. Arotes Gravenhorst A. AMOENus Cress. Echo Lake; Bar Harbor, June 17-July 22. A. FORMOsus Cress. Bar Harbor, July 22. A. viciNus Cress. Bar Harbor; Acadia Mt. (Alexander), July 26-Sept. 3. CoLEOCENTRUS Gravenhorst C. RUFUS Prov. var. Seal Harbor (David Rockerfeller). C. sp. N. E. Harbor, July 10 (Minot). Mesotenus Gravenhorst M. BRYTHROGASTER Aslim. Bar Harbor, June 21-Sept. 13. AcRORiCNUS Katzeburg A. CLOUTiERi Prov. Bar Harbor; N. E. Harbor; S. W. Har- bor, June 11-Aug. 10. Chaeretymma Foerster C. sp. Bar Harbor, June 8. Itamoplex Foerster I. AMERicAFus Crcss. S. W. Harbor ; Green Mt., July 15-25. THE MOUNT DESERT REGION 141 Cryptus Fabricius C. AMBLYTELARius Prov. Bar Harbor, June 21-July 26. C. APiCATus Prov. Bar Harbor ; Narrows, July 5-27. C. ORNATus Prov. Bar Harbor, Sept. 10. C. PERsiMiLis Cress. Narrows, June 27. C. viNCTus Say. Bar Harbor; Salisbury Cove, June 15- July 19. Trychosis Foerster T. RUFOANNULATus Prov. Salisbury Cove, July 24. Spilocryptus Thomson S. CANARsiAH Aslim. Bar Harbor, June 15-July 22. S. ciMBicivoRus Cush. S. W. Harbor, July 28. Parasitic on Cimhex americana. S. EXiLis Prov. Bar Harbor; Eagle Lake; Echo Lake, June 11-Aug. 12. S. LOPHYRi Nort. N. E. Harbor (Minot) ; Bar Harbor, June 7-July 16. Parasitic on the spruce sawfly, Neodiprion abietis. S. NUNcius Say. Witch Hole Pond, Sept. 11. Parasitic on Telea polyphemus and other large moths. Chrysopoctonus Cushman C. RiLEYi Ashm. S. W. Harbor, July 30. HoPLOCRYPTUS Thomson H. sp. N. E. Harbor, June 26 (Minot). Hemiteles Gravenhorst H. PALLiPENNis Prov. Loug Poiid, July 16. H. RUFicoxus Prov. Jordan Pond ; Echo Lake ; S. W. Harbor, June 10-July 15. H. TENELLus Say. Bar Harbor; Salisbury Cove; S. W. Har- bor, June 7-Sept. 3. Gelis Thunberg G. BuccuLATRicis Asliui. S. W. Harbor, July 13. G. sp. Echo Lake, June 27. Stenocryptus Thomson S. sp. S. W. Harbor, July 30. 142 BIOLOGICAL SURVEY OF Phygadeuon Gravenhorst P. ABDOMiNALis Prov. Narrows, June 9. P. iNFLATus Prov. S. W. Harbor ; Echo Lake ; N. E. Harbor, July 11-Aug. 25. P. occiDENTALis Prov. Bar Harbor, July 24. P. oRBiTALis Prov. Bar Harbor, June 7. P. ovALis Prov. S. W. Harbor, July 11-Aug. 21. P. PUBESCENS Prov. Bar Harbor ; Salisbury Cove ; S. W. Har- bor, June 8-July 30. P. ROTUNDicEPs Prov. Echo Lake, July 17. P. EUFicoRNis Prov. Salisbury Cove; Bar Harbor, June 22- July 27. P. suBSPiNOSus Prov. Bar Harbor, June 12. GiRAUDiA. Foerster G. sp. S. W. Harbor, Sept. 8. Ernoctona Foerster E. sp. S. W. Harbor, July 13. Plesignathus Foerster P. AMERicANus Cush. S. W. Harbor, June 27. P. sp. Bar Harbor, June 22. HoMELYS Foerster H. sp. Salisbury Cove, July 25. MicBOCRYPTUS Thomson M. sp. Salisbury Cove, June 9-July 24. Plectocbyptus Thomson P. coNTiGuus Cress. Bar Harbor, June 22. P. MAJOR Cress. S. W. Harbor, June 25. Stylocbyptus Thomson S. PUBESCENS Prov. S. W. Harbor, July 24. S. suBCLAVATus Say. Salisbury Cove, July 14. Atractodes Gravenhorst A. COMPRESSA Cress. Green Mt., Aug. 25. A. sp. Bar Harbor, Sept. 10. THE MOUNT DESERT REGION 143 ExOLYTUS Holmgren E. sp. S. W. Harbor, July 14. Pboscus Holmgren P. sp. Salisbury Cove; Bar Harbor, July 24-Sept. 10. Phaeogenes Wesmael P. ATER Cress. Bar Harbor ; Salisbury Cove, June 13-July 27. P. DECOLORATus Cress. S. W. Harbor, July 15. P. DISCUS Cress. Echo Lake ; Bar Harbor, July 12- Aug. 10. P. FUNGOR Nort. Bar Harbor ; Salisbury Cove, July 27- Aug. 16. Parasitic on the spruce sawfly, Neodiprion ahietis. P. GASPESiANus Prov. S. W. Hai'bor ; Long Pond; Salisbury Cove, July 16-29. P. HEBE Cress. S. W. Harbor; Salisbury Cove, July 14- Aug. 10. P. HEBRus Cress. ? Echo Lake, July 12. CoLPOGNATHUS Wesmael C. HELvus Cress. N. E. Harbor, Aug. 10 (Minot). DiCAELOTUS Wesmael D. sp. S. W. Harbor, Sept. 8. IscHNUS Gravenhorst I. sp. Bar Harbor, June 8. Platylabus Wesmael P. CANADENSIS Cress. Bar Harbor, June 21. P. sp. near bimembris Prov. Bar Harbor, July 13. P. n.sp. Bar Harbor, July 29. Oronotus Wesmael 0. sp. Bar Harbor, June 17. Herpestomus Wesmael ?H. HARiOLus Cress. Salisbury Cove, July 22. H. hebrus Cress. Salisbury Cove, July 18. Anisobas Wesmael A. NEARCTicus Cusli. S. AV. Hai'bor, July 10. 144 BIOLOGICAL SURVEY OF j Amblyteles Wesmael A. ACERABus Cress. Bar Harbor; S. W. Harbor; Narrows, j July 11-Aug. 18. j A. AGNiTus Cress. N. E. Harbor, Aug. 11 (Minot). j A. ANNULiPES Cress. Bar Harbor; Sand Beach; S. W. Har- ! bor, June 15-Aug. 10. i A. APERTus Cress. Green Mt., Aug. 17. \ A. ATRox Cress. Bar Harbor, June 9. , A. BiMEMBRis Prov. Salisbury Cove; Green Mt., July 23- ' Aug. 17. A. BiocuLATus Cress. S. W. Harbor, July 28. A. CAERULEUs Cress. N. E. Harbor (Minot) ; Echo Lake, Sept. 7. Parasitic on the tussock moth. A. CANADENSIS Cress. Echo Lake; S. W. Harbor; Salisbury Cove, June 27-July 24. A. CAUDATus Prov. Bar Harbor, June 21. i A. CERULUS Prov. S. W. Harbor, Aug. 2 (Fernald). i A. CERvuLus Cress. Salisbury Cove, July 24. j A. ciNCTicoRNis Cress. S. W. Harbor; Bar Harbor; Salis- ! bury Cove, July 15-Aug. 15. I A. ciNCTiTARSis Prov. Salisbury Cove, July 23. \ A. COMES Cress. Bar Harbor, July 17. \ A. coNFiRMATUs Crcss. N. E. Harbor, July 23 (Minot). ^ A. coRviNUs Cress. Bar Harbor, June 22. j A. CREPERus Cress. S. W. Harbor, July 15. ;; A. DETRITUS Brulle. Salisbury Cove, July 24. i A. DiviNCTOR Say. Salisbury Cove; Echo Lake, July 17- j Sept. 7. j A. DUPLiCATUS Cress. Bar Harbor, July 24. | A. EXTREMATis Cress. S. W. Harbor, Aug. 14 (Fernald). \ A. PERALis Cress. Echo Lake, July 12. ; A. FLAvicoRNis Cress. Sand Beach, July 11. : A. FRATERNus Cress. Echo Lake; S. W. Harbor (Fernald), ; June 27-July 19. ! A. FUNESTus Cress. Bar Harbor, June 21. A. GALENUS Cress. Salisbury Cove ; S. W. Harbor, July 23- Sept. 6. THE MOUNT DESERT REGION 145 A. GERMANUS Ci'ess. Bai" Harbor; S. W. Harbor; Long Pond, June 7- Aug. 27. A. GRANDis Brulle. Bar Harbor; N. E. Harbor (Minot) ; S. W. Harbor, July 24-Sept. 6. A. HOSPiTUS Cress. S. W. Harbor, July 15. A. iNCONSTANs Cress. S. W. Harbor; Salisbury Cove, July 15-23. A. iNSTABiLis Cress. S. W. Harbor; Bar Harbor; Salisbury Cove, June 20- July 25. Parasitic on Phyciodes tharos. A. LACHRYMANs Prov. S. W. Harbor, July 11-Aug. 3. A. LAETus Brulle. Common, July 17-Sept. 9. A. LEvicuLus Cress. Salisbury Cove, July 14. A. LucTus Cress. Common, June 13-July 24. A. MALACUs Say. Salisbury Cove, July 14. A. MAURUS Cress. Bar Harbor, June 21. A. MELLicoxus Prov. Bar Harbor; Jordan Pond, June 10- July 21. A. MiLvus Cress. Common, June 10-July 25. A. MiMicus Cress. S. W. Harbor, Sept. 6. A. MONTANus Cress. Salisbury Cove, July 23. A. NANUS Cress. Salisbury Cove ; Bar Harbor, July 14-Sept. 11. A. NiGRiPEs Prov. Bar Harbor, June 2. A. NiGROvARiEGATus Prov. S. W. Harbor ; Long Pond, July 10-Aug. 21. A. NUBivAGus Cress. Salisbury Cove, July 17. A. oRMENus Cress. S. W. Harbor, Aug. 29 (Fernald). A. PARVUS Cress. Witch Hole Pond; Bar Harbor, July 5-30. A. PERLUCTuosus Cress. Bar Harbor, June 21. A. POMiLius Prov. Bar Harbor, July 24. A. PRAVus Cress. Salisbury Cove; Bar Harbor, July 17- Aug. 16. A. PRoxiMus Prov. Bar Harbor ; Salisbury Cove ; S. W. Har- bor, July 11-20. A. RUBicuNDus Cress. S. W. Harbor; Bar Harbor, July 15- 19. A. RUFivENTRis Brullc. S. W. Harbor; Salisbury Cove, July 15-24. 146 BIOLOGICAL SURVEY OF i A. sAGus Cress. N. E. Harbor, June 26 (Minot). A. sciTULUs Cress. Bar Harbor; N. E. Harbor (Minot), June 11-Aug. 11. A. sEMiNiGRA Cress. Bar Harbor; Salisbury Cove, June 11- July 23. \ A. STADACONENsis Prov. Bar Harbor; Salisbury Cove, June t 14-July 24. j A. sTYGicus Cress. Salisbury Cove, July 25. i A. suBCYANEUs Cress. Bar Harbor, June 21. i A. suBDOLus Cress. S. W. Harbor, June 18-July 20. \ A. suBLATus Cress. Bar Harbor, July 22-Aug. 12. i A. suBRUFUs Cress. Salisbury Cove; Bar Harbor, June 21- July 25. i A. suTURALis Say. Bar Harbor; S. W. Harbor, June 21- Sept. 13. ' A. UNiFAsciATORius Say. S. W. Harbor, Aug. 22 (Fernald). ] A. VAFER Cress. Bar Harbor, June 22. ■ A. vERSABiLis Cress. Common, July 12-Sept. 8. i A. VESCUS Prov. Bar Harbor ; Echo Lake, June 13-17. | A. VIOLA Cress. Bar Harbor; Salisbury Cove, June 21-July I 24. \ A. viTALis Cress. Salisbury Cove; S. W. Harbor, July 24- Sept. 6. ?A. vjciNus Cress. Salisbury Cove, July 18. \ A. vivAX Cress. Narrows ; S. W. Harbor, June 9-20. A. w-ALBUM Cress. S. W. Harbor; Bar Harbor; Echo Lake, I July 20-Sept. 7. A. wiNKLEYi Vier. S. W. Harbor, June 20. A. near duplicatus Cress. Salisbury Cove, July 17. A. near excultus Cress. Bar Harbor, June 15. : A. near nubivagus Cress. S. W. Harbor, July 15. ] A. near vagans Prov. Bar Harbor, June 15. ^ A. near volesus Cress. Long Pond, Aug. 21. ' HOPLISMENUS Gravenhorst ■ H. RUTiLus Cress. S. W. Harbor, July 29. THE MOUNT DESERT EEGION 147 Trogus Panzer T. OBsiDiANATOR Brulle. Salisbury Cove, July 17-24. Para- sitic on Papilio polyxenes. T. (PsiLOMASTix) FULviPEs Cress. Common, July 8-24. T. (PsiLOMASTix) vuLPiNus Grav. {exesorius Brull.). Salis- bury Cove, July 14-17, Parasitic on Papilio polyxenes and turnus. MYERSiroAE Myersia Viereck M. JOHNsoNi Cush. S. W. Harbor; Long Pond, July 11-16. TRIGONALroAE Trigonalys Westwood T. SULCATA Davis. Duck Brook, July 30, 1919. EVANHDAE Gasteruption Latreille G. MONTANUS var. iNCERTUS Crcss. S. W. Harbor; Bar Har- bor; Salisbury Cove, July 10-29. G. TARSATORius Say. S. W. Harbor, July 28. Odontaulacus Kieffer 0. ABDOMiNALis Crcss. Bar Harbor; S. W. Harbor, June 13- July 29. Cynipidae. Gall wasps Andricus Hartig (Callirhytis auct.) A. OPERATOR form OPERATOR 0. S. Acom gall. Robinson Mt., Sept. 7. The gall is an oval larval cell between the nut and cup of the acorn. On the scrub oak {Quercus ilicifolia). The agamic generation. A. TUBEROsus Bass. Robinson Mt. Irregular wood galls on the scrub oak. A. sciTULUs Bass. Salisbury Cove; Bar Harbor. Irregular wood terminal swellings on the red oak {Quercus rubra). A. siNGULARis Bass. 'Small oak apple gall.' Bar Harbor; Salisbury Cove, Aug. On leaves of the red oak. Amphibolips Keinhard A. iNANis 0. S. Empty oak gall. Bar Harbor, Aug. 6. On the leaves of the red oak. 148 BIOLOGICAL SURVEY OF SOLENOZOPHERIA Asluiiead S. vACCiNii Ashm. Huckleberry gall. Salisbury Cove; Bar Harbor. A woody gall on huckleberry and blueberry. Ehodites Hartig R. BicoLOR Harr. Spiny rose gall. Bar Harbor; Salisbury Cove, July-Aug. Ibaliidae Callaspidia Dahlbom C. PROVANCHERi Aslim. S. W. Harbor, July 30. Chalcidoidea Entedontidae Pleurotropis Foerster P. sp. S. W. Harbor, July 13. Eulophidae Sympiesis Foerster S. BiMACULATus Crawf . Green Mt. ; Salisbury Cove, July 17- Aug. 21. S. NiGRiFEMORA AsHi. S. W. Hai'bor, July 11. CiRROSPiLOiDEUS Aslimeacl C. joHNSONi Gir. Narrows, June 24. EuPLECTRUS Westwood E. sp. S. W. Harbor, July 11. Pteromalidae Neocatolaccus Aslimead N. sp. Bar Harbor, Sept. 9. Belonura Aslimead B. siNGULARis Aslim. Narrows, Aug. 13. Teigonoderus Westwood T. sp. Bar Harbor, Aug. 18. Encyrtidae EuNOTUS Walker E. AMERicANus Gir. 'Mt. Desert,' July 30 (McAtee). THE MOUNT DESERT REGIOISr 149 Habritys Thomson H. sp. S. W. Harbor, July 13. Lamprotatus Westwood L. sp. Long Pond ; S. W. Harbor, July 16-Aug. 14. EUROTOMIDAE EtJROTOMA lUiger E. sp. S. W. Harbor, July 13. Callimomidae (Torymidae) Callimome Spiiiola (Torymus Dalm.) C. BREvicAUDA 0. S. S. W. HarboT, July 11-30. C. sp. Echo Lake, July 17. Syntomaspis Foerster S. sp. S. W. Harbor, Aug. 23. Cryptopristis Foerster C. sp. Bar Harbor, Aug. 10. Perilampidae Perilampus Latreille P. cYANEus Brull. Salisbury Cove, July 24. P. sp. Bar Harbor; Green Mt., June 16-Aug. 10. Chalcididae Brachymeria Westwood (Chalcis auct.) B. coMPsiLUEAE Crawf. Long Pond, July 16. Spilochalcis Thomson S. FLEBiLis Cress. Narrows; mouth, N. E. Creek; July 25- Aug. 13. S. TORviNA Cress. Salisbury Cove; Witch Hole Pond; S. W. Harbor, July 19-Sept. 6. S. sp. Tremont, Aug. 23. LEUCOSProAE Leucospis Fabricius L. AFFiNis Say. Salisbury Cove ; Bar Harbor ; S. W. Harbor, July 23-28. 150 biological survey of Proctotrypoidea DiAPRIIDAE Paramesius Westwood P. sp. Narrows, Aug. 13. AsHMEADOPRiA Kieffer A. sp. Narrows, July 27. Belytidae Leptorhaptus Foerster L. sp. Long Pond, July 10. CiNETXJS Jurine C. n.sp. Bar Harbor, Aug. 18. C. sp. Bar Harbor, Aug. 18. Pantoclis Foerster P. CRASSicoRNis Ashm. S. W. Harbor, July 13. Serphidae Serphus Schrank S. sp. Bar Harbor, Aug. 18. S. sp. S. W. Harbor; Bar Harbor, June 13-24. Pelecinidae Pelecintjs Latreille P. poLYTUEATOR Drury. Bar Harbor, Aug. 16-19 (Moore). One male was collected in 1921 and three in 1922 (Aug. 17, 31, and Sept. 7) at N. E. Harbor by A. R. Allen. The males are usually very scarce. Parasitic on the larvae of June beetle (Phyllophaga). TiPHIIDAE Tiphia Fabricius T. iNORNATA Say. Salisbury Cove, July 23. Myrmosidae Myrmosa Latreille M. uNicoLOR Say. Salisbury Cove, Aug. 11. THE MOUNT DESERT EEGION 151 FoRMicroAE. Ants Cremastogaster Lund C. LiNEOLATA Sav. Eobinsoii Mt., Sept. 7. On sap from gall- infested acorns of the scrub oak ; Cadillac Cliffs and Salis- bury Cove, Sept. 11 and 12, males and females swarming. Mybmica Latreille M. scABRiNODis var. FRACTicoRNis Emcrj. S. W. Harbor; Green Mt. ; Long Pond, July 11-Aug. 22. M. SCABRINODIS var. SABULATES Meiu. 'Mt. Desert,' July 30 (McAtee). M. SCABRINODIS scHENCKi var. EMERYANA Forcl. S. W. Har- bor; Witch Hole Pond, Sept. 6-11. Leptothorax Mayr L. ACERVORUM CANADENSIS Prov. S. W. Harbor, July 11. L. cuRvispiNosus AMBiGuus Emery. 'Mt. Desert,' July 30 (McAtee). DOLICHODERUS Lund D. PLAGiATus var. iNORNATus Wheeler. S. W. Harbor, Sept. 6. D. PLAGIATUS Emery var. Break Neck Pond, Sept. 8. Tapinoma Foerster T. SESSILE Say. S. W. Harbor, July 11-Sept. 6. Lasius Fabricius L. NIGER var. AMERiCANus Emery. 'Mt. Desert,' July 30 (Mc- Atee). L. NIGER var. siTKAENsis Pcrgaudc. Long Pond ; Bar Harbor, June 27-July 17. L. UMBRATus MixTus var. APHiDicoLA Walsh. S. W. Harbor; Green Mt., July 15-25. L. UMBRATUS suBUMBRATus Vicr. Bar Harbor, Aug. 16. Formica Latreille F. sANGuiNEA ASERVA Forcl. Bar Harbor; S. W. Harbor; Green Mt., June 21-July 25. F. FuscA Linn. Common, June-Sept. This species makes large mounds. Near the foot of Western Mt. ('Gilly's field') was a mound that measured 7 by 11 feet, with an average height of 2 feet. 152 BIOLOGICAL SURVEY OF F. NEOGAGATES Emerv. S. W. Harbor ; Bar Harbor, July 14- Sept. 6. F. RUFA INTEGRA NvL Salisburj Cove, Aug. 9. Camponotus Mayr C. HERCULEANus PENNSYLVANicus De G. Carpenter ant. Bar Harbor, July 20. Nesting in old logs and stumps, it fre- quently migrates to farm houses and becomes a pest both by riddling the wood-work and by visiting the kitchen for sweets. C. HERCULEANUS LIGNIPERDUS Var. NOVABORACENSIS Fitcll. Com- mon, June to Sept. Frequents old logs and stumps. C. HERCULEANUS var. wHYMPERi Forel. Bar Harbor; Nar- rows, June 16-Aug. 13. PsAMMOCHARiDAE. Spider-wasps Episyron Schiodte E. BiGUTTATus Fab. Bar Harbor; Salisbury Cove; N. E. Harbor, July 15-Aug. 21. It provisions its nest with spid- ers (Epeira). E. QuiNQUENOTATus Say. S. W. Harbor; Salisbury Cove, July 15-28. It provisions its nest with spiders (Epeira). PoMPiLOiDES Eadoszkowski P. AMERicANus Bcauv. Commoii, July 17-29. P. MARGiNATus Say. Green Mt., July 25. P. CANADENSIS Baiiks. S. W. Harbor ; Bar Harbor ; Narrows, July 20-Aug. 13. P. INSOLENS Banks. S. W. Harbor, July 11-20. P. RECTUS Banks. Green Mt. ; Echo Lake, July 17. PsAMMOCHARES Latreille P. ASTUR Banks. S. W. Harbor; Bar Harbor; Salisbury Cove, July 15-24. P. LASioPE Banks. Bar Harbor; S. W. Harbor, July 26- Sept. 11. P. PRETiosA Banks. S. W. Harbor; Green Mt.; Bar Harbor, July 15-29. THE MOUNT DESERT REGION 153 SoPHROPOMPiLus Banks S. HYACiNTHiNus Cress. S. W. Harbor, July 10-29. Anoplius Le Peletier A. TENEBRosus Cress. Green Mt. ; Narrows; Bar Harbor; S. W. Harbor, June 18-Aug. 13. A. viRGiNiENSis Cress. Narrows; Salisbury Cove, July 14— Aug. 13. A. vENTRALis Bauks. Long Pond, July 16. Priocnemis Schiodte P. ALiENATus Smith. S. W. Harbor, July 28. P. GERMANUS Cress. Bar Harbor; Green Mt., Aug. 16, 17. PSEUDAGENIA Kohl P. CALiPTERA Cress. Eagle Lake, July 18. P. NANELLA Bauks. N. E. Harbor, July 26 (Minot). P. VARiTARSATA Bauks. N. E. Harbor; Salisbury Cove, July 8-26. Ageniella Banks A. CALCARATA Cress. Salisbury Cove, July 15-Aug. 11. A. iRiDiPENNis Cress. Bar Harbor, July 21. Ceropales Latreille C. FRATERNA Smith. Salisbury Cove ; Green Mt., July 23-25. The species of the genus are parasitic in the nests of other genera of the family. EuMENiDAE. Solitary wasps Eumenes Fabricius. Potter-wasps E. GLOBULosus Sauss. Common, June 16-July 25. Symmorphus Wesmael S. ALBOMARGiNATus Sauss. Bar Harbor, Aug. 16. S. CRiSTATus Sauss. Bar Harbor, July 24. S. CANADENSIS Sauss. Witch Hole Pond, July 30. Ancistrocerus Wesmael A. ALBOPHALERATus Sauss. Bar Harbor; Green Mt., July 18-25. 154 BIOLOGICAL SURVEY OF A. CAPRA Sauss. Bar Harbor; N. E. Harbor; S. W. Harbor, July 20-Aug. 22. A. TIGRIS Sauss. Bar Harbor; S. W. Harbor; Long Pond, Aug. 18-Sept. 7. A. WALDENii Vier. Bar Harbor ; Green Mt., June 7-July 25. A. UNiFASciATus Sauss. Salisbury Cove, Aug. 11. Odynerus Latreille 0. KENNicoTiANus Sauss. Bar Harbor, July 27. 0. LEucoMELAs Sauss. S. W. Harbor; Salisbury Cove, July 10-17. Chrysididae. Cuckoo wasps NoTOZUS Foerster N. MARGiNATus Patt. Salisbury Cove, July 13, 19. Ellampus Spinola E. LAEvivENTRis Cress. S. W. Harbor; Salisbury Cove; Bar Harbor, June 16-July 13. HoLOPHRis Mocsary H. iRiDESCENS Nort. Echo Lake; Bar Harbor, July 16-24. HoLOPYGA Dahlbom H. ASPERA BrulL Salisbury Cove, July 24. Hedychridium Pen-in H. vioLACEUM Brull. Bar Harbor, July 22. Chrysidea Bischoff C. VERicALis Patt. S. W. Harbor, June 21. Chrysis Linnaeus C. (GoNocHRYsis) ATRivENTER Taylor. Green Mf., July 25. C. (Tetrachrysis) coerulans Fab. Bar Harbor, June 15. C. (Tetrachrysis) nitidula Fab. Common, July 7-Sept. 6. C. (Tetrachrysis) nitidula var. cessata du Buysson. S. W. Harbor ; Salisbury Cove, June 15-Sept. 23. C. (Tetrachrysis) pellucidula Aaron. S. W. Harbor, July 24. THE MOUNT DESERT REGION 155 Vespidae. Social wasps Vespula Thomson V. ARCTicA Vier. (F. borealis Lewis & Kby.). Northern hor- net. Echo Lake; N. E. Harbor; Bar Harbor; Green Mt., July 12-29. V. coNsoBRiNA Sauss. Small white-faced hornet. Common, June 20-Sept. 6. V. MACULATA Linn. White-faced hornet. S. W. Harbor ; Bar Harbor, July 10- Sept. 6. V. COMMUNIS Sauss. Common yellow-jacket. N. E. Harbor; Bar Harbor, June 30-July 21. V. DiABOLicA Sauss. Commou, June 30-Sept. 6. V. NORVEGiCA Fab. S. W. Harbor ; Bar Harbor, Aug. 12-21. V. VIDUA Sauss. Bar Harbor ; N. E. Harbor, Aug. 10-Sept. 22. Sphecidae Larrinae AsTATA Latreille A. UNicoLOR Say. Salisbury Cove, July 23. A. LENSTROMi Ashm. Salisbury Cove, July 24. Larbopsis Patton L. DisTiNCTA Smith. Bar Harbor; Salisbury Cove; S. W. Harbor, July 19-29. Trypoxyloninae Trypoxylon Latreille T. FRiGiDUM Smith. Common, July 17-Sept. 6. Sphecinae Sphex Linnaeus S. arvensis Dahlb. Common, June 11-Aug. 23. PoDALONiA Spinola (Psammophila Dahlbom) P. violaceipennis Le Pel. Salisbury Cove ; Green Mt. ; S. W. Harbor, July 11-25. Chalybion Dahlbom C. caeruleum Linn. Blue mud-dauber. Bar Harbor, July 24. It stores its nest with spiders, usually species of Epeira. 156 BIOLOGICAL SURVEY OF SCELIPHRON Klug S. cAEMENTARius Drury. Common mud-dauber. Salisbury Cove, July 24. PSENINAE PsEN Latreille P. PAUPER Pack. Bar Harbor, Aug. 16. P. BASiRUFUS Pack. Echo Lake; S. W. Harbor; N. E. Harbor, July 6-18. Pemphredon Latreille P. ANGULARis Fox. Bar Harbor (Moore) ; N. E. Harbor, July 6 (Minot). Cemonus Juriiie C. iNORNATus Pack. Upper Hadlock Pond ; Bar Harbor, June 10-21. Stigmus Panzer S. AMERiCANus Pack. Bar Harbor; Echo Lake, June 15-17. They make their nest in the pith of dry branches of sumac, provisioning it with aphids. Passaloecus Shuckard P. MANDiBULARis Crcss. Bar Harbor ; S. W. Harbor, June 17- July 29. Bembicinae Philanthus Fabricius P. BiLUNATus Cress. Salisbury Cove, July 14, 24. Aphilanthops Patton A. FRiGiDus Smith. Salisbury Cove, July 23. It makes its nest in the ground and provisions it with queen ants. Cercebis Latreille C. CLYPEATA Cress. S. W. Harbor; Salisbury Cove; Bar Harbor, July 20-24. C. DENTiFRONs Crcss. Salisbury Cove, July 18-24. The spe- cies of this genus provision their nests with beetles. Alyson Jurine A. opposiTus Say. Salisbury Cove; Bar Harbor, July 19- Aug. 15. THE MOUNT DESERT REGION 157 Nysson Latreille N. LATERALIS Pack. Salisbury Cove, July 23-25. HoPLisus Le Peletier H. ATRicoRNis Pack. S. W. Harbor; Salisbury Cove; Bar Harbor, July 15-24. H. FLAvicoRNis Pack. Salisbury Cove, July 24. H. siMiLLiNus Smith. Salisbury Cove; S. W. Harbor; Bar Harbor, July 17-Aug. 20. OXYBELINAE OxYBELUS Latreille 0. QUADRiNOTATus Say. Salisbury Cove, July 23. Crabroninae Crabro Fabricius (Thyreopus Ashmead) C. MONTicoLA Pack. Salisbury Cove, July 28. C. (Blepharipus) ater Cress. S. W. Harbor; Bar Harbor; Narrows, July 15-Aug. 13. Clytochrysus Morawitz C. OBscuRus Smith. S. W. Harbor, June 21-July 15. C. septentrionalis Pack. Salisbury Cove, July 24. SoLKNius Le Peletier S. iNTERRUPTUs Le P. Salisbuiy Cove, July 24. EcTEMNius Dahlbom E. coRRUGATus Pack. S. W. Harbor, July 11. E. MONTANus Cress. Long Pond; Salisbury Cove, July 16-17. LoPHOCRABRO Viereck L. TRAPEzoiDEus Pack. Bar Harbor, July 19. Xestocrabro Ashmead X. SAYi Ckll. (Crabro sexmaculata Say, not Oliv.). Common. July 10-Aug. 23. X. TRiFASciATUs Say. S. W. Harbor, July 11. Hypocrabro Ashmead H. cHRYSARGYNus Le P. S. W. Harbor ; Echo Lake; Bar Harbor, July 11-20. 158 BIOLOGICAL SURVEY OF CuPHOPTERUS Morawitz C. MACULiPENNis Smith. Echo Lake; N. E. Harbor, July 12- Aug. 10. Apoidea Halictidae Halictus Latreille H. LEROuxi Le Pel. Common, July 6-Sept. 6. H. provancheri D. T. Bar Harbor; S. W. Harbor, Aug. 15. Subgenus Evylaeus Eobertson H. ARCUATus Robts. Bar Harbor; 'Narrows,' July 18- Aug. 14. H. Foxii Robts, Bar Harbor, June 7-13. H. QUADRiMACULATus Robts. S. W. Harbor, July 13. H. TRUNCATUs Robts. S. W. Harbor, Sept. 6. Subgenus Lasioglossum Curtis H. coriaceus Smith. Common, June 22-Sept. 7. H. siMiLis Smith. Common, July 6-Aug. 17. Subgenus Chlorolictus Eobertson H. cREssoNi Robts. Bar Harbor; Green Mt. ; Echo Lake, June 11-July 25. H. NYMPHAEARUM Robts. Narrows, Aug. 13. H. VERSATus Robts. Bar Harbor ; Long Pond ; Narrows, June 15-Aug. 21. H. ZEPHYRUs Smith. S. W. Harbor; Echo Lake, July 10-17. Andrenidae Andrena Fabricius A. cocKERELLi Graeii. Bar Harbor ; Salisbury Cove, June 7-9. A. HiRTiciNCTA Prov. S. W. Harbor, Aug. 23. On flowers of goldenrod. A. LATA Vier. Bar Harbor, June 8, 1921. Type locality. A. MiLWAUKENsis Gracu. Bar Harbor; Echo Lake, June 8- July 12. Stylopized. A. NUBECULA Smith. Bar Harbor, Sept. 9-11. A. THASPii Graen, Echo Lake; N. E. Harbor (Minot), June 18-July 8. Stylopized. THE MOUNT DESERT REGION" 159 A. TUMiDA Vier. Echo Lake, July 12, 1918. Type locality. A. viciNA Smith. Bar Harbor, June 8. On flower of fruit trees. A. wiLKELLA Kby. S. W. Harbor; Bar Harbor, June 7-July 22. On flowers of the raspberry and gooseberry. OXYSTOGLOSSA Smith 0. coNFusus Robts. Green Mt., July 25. 0. puRus Say. Bar Harbor ; Salisbury Cove, June 9-July 25. Sphecodes Latreille S. JOHNSONI Lovell. N. E. Harbor, July 24. S. NUBiLus Lovell and Cockerell. Bar Harbor, Aug. 15. S. OBScuRANs Lovell and Cockerell. Bar Harbor, June 16- July 24. S. RANUNCULI Robts. Bar Harbor, June 15. The species of Sphecodes are parasitic in the nests of spe- cies of Halictus. Macropidae Macropis Panzer M. MORSEi Robts. S. W. Harbor; Echo Lake; Salisbury Cove, June 23-July 13. Panurgidae Calliopsis Smith C. ANDRENiFORMis Smith. Ou flowcr of Leontodon autumnalis, July 30 (McAtee). Salisbury Cove, July 13. NOMADIDAE Nomada Fabricius N. cuNEATA var. QUADRisiGNATA Robts. Bar Harbor; Echo Lake, June 16-July 26. N. PERPLEXA Cress. Bar Harbor; Narrows; Salisbury Cove, June 9-July 23. These are known as 'cuckoo bees,' living parasitically in the nests of other bees. EUCIRIDAE Melissodes Latreille M. RUSTicA Say. Bar Harbor ; S. W. Harbor ; Salisbury Cove. Aug. 10-22. 160 BIOLOGICAL SURVEY OF Anthophoridae Clisodon Patton C. TERMiNALis CrGSS. Bar Harbor ; Salisbury Cove. June 15- July 18. Hylaeidae Hylaeus Fabricius (Prosopis Fabricius) H. elliptica Kirby. Bar Harbor ; Salisbury Cove, July 13-19. H. MODESTUS Say. Common, June 17-July 30. H. thaspii Eobts. S. W. Harbor, July 11. Megachilidae Megachile Latreille. Leaf -cutting bees M. iNFRAGiLis Cress. Common, July 12-Sept. 23. M. LATiMANus Say. Salisbury Cove, Aug. 11, 1926. M. melanophea Smith. Common, June 9-July 25. M. MENDicA Cress. S. W. Harbor, Sept. 6. M. MUSiDA Cress. Common, June 21-July 26. M. RELATivA Cress. S. W. Harbor; Echo Lake; Bar Harbor. June 27-Sept. 13. M. VIDUA Smith. Bar Harbor; S. W. Harbor; Echo Lake, June 7-July 20. Caelioxys Latreille C. soDALis Cress. Bar Harbor, July 19-20. C. sp. Bar Harbor, July 10. The species of this genus are parasitic on the species of Megachile. OsMiA Panzer. Mason bees 0. ALBivENTRis Crcss. Salisbury Cove, July 13. 0. siMiLLiMA Smith. Common, June 9-July 12. 0. DisTiNCTA Cress. *Mt. Desert,' July 30, on flowers of Vicia (McAtee). 0. PUMiLA Cress. Bar Harbor, June 9. Andronicus Cresson A. cYLiNDRicus Crcss. Bar Harbor; S. W. Harbor, June 8- July 11. A. PRODucTus Cress. Bar Harbor, June 7. the mount desert region 161 Ceratinidae Ceratina Latreille C. DUPLA Say. Bar Harbor, June 25. It makes its nest in the pith of briars, etc. Apidae Bremus Panzer (Bombus Latreille). Bumble bees B. bimaculatus Cress. 'Mt. Desert,' July 30 (McAtee). B. EERviDUs Fab. Bar Harbor, June 7. B. PERPLEXus Cress. Common, June 17-Sept. 6. B. TERNARius Say. Orange-banded bumble bee. Common, June 7- Aug. 24. B. TERRicoLA Kbv. Bar Harbor; N. E. Harbor (Minot) ; S. W. Harbor, June 14-Aug. 25. PsiTHYRUs Le Peletier P. ASHTONi Cress. Bar Harbor; S. W. Harbor; Narrows, June 7-Aug. 14. P. LABORiosus Fab. S. W. Harbor, July 15. P. LABORIOSUS var. ciTRiNus Smith. Bar Harbor; S. W. Har- bor, July 10-Aug. 14. P. TRICOLOR Frankl. (P. fernaldi Frankl.). Bar Harbor; Tre- mont, July 19-Aug. 23. Apis Linnaeus A. MELLiFiCA Linn. Honey bee. Order DIPTERA Nematocera Ptychoptera Meigen P. RUFiciNCTA 0. S. Bar Harbor, July 21-24; Echo Lake, Sept. 1-4 (Alexander). BiTTACOMORPHA Westwood B. cLAviPEs Fab. 'Phantom crane-fly.' Bar Harbor, July 21-26; Echo Lake, Sept. 1-4 (Alexander). BiTTACOMORPHELLA Alexander B. joNEsi Johns. Long Pond, July 16; foot of Pickett's Mt., July 21. 162 BIOLOGICAL SURVEY OF TiPULiDAE. Crane flies Geranomyia Haliday G. CANADENSIS Westw. Eclio Lake, Sept. 4 (Alexander). DiscoBOLA Osten Sacken D. ARGUS Say. Common, July 24-Sept. 8. Khipidia Meigen K. MACULATA Melg. N. E. Harbor (Minot) ; Long Pond ; West- ern Mt. (Alexander), June 30-Sept. 8. DiCRANOMYiA Stephen D. GLADIATOR 0. S. Bar Harbor ; Narrows, July 24-27. D. HAERiTicA 0. S. Bar Harbor; S. W. Harbor; Narrows, June 10-July 27. D. iMMODESTA O. S. Salisbury Cove; N. E. Harbor (Minot) ; Echo Lake (Alexander), July 14-Sept. 8. D. LiBERTA 0. S. Bar Harbor; S. W. Harbor; Echo Lake, June 13-July 12. D. LONGiPENNis Sclium. S. W. Harbor, June 20; N. E. Har- bor, Aug. 11 (Minot). D. MORioiDEs 0. S. Bar Harbor, June 13. D. PROFUNDA Alex. Echo Lake, Aug. 29 (Alexander). D. puBiPENNis 0. S. Bar Harbor, June 19-July 30. D. spiNiFERA Alex. Echo Lake and Beech Mt., Aug. 31-Sept. 12 (Alexander). D. STULTA 0. S. Fernald Cove, Aug. 26 ; Beech Mt., Sept. 12 (Alexander). LiMONiA Meigen L. GLOBiTHORAX O. S. Echo Lake, Sept. 1 (Alexander). L. HUDsoNicA 0. S. Bar Harbor, Aug. 10. L. iMMATURA 0. S. Bar Harbor, June 21 ; Beech Mt., Sept. 12 (Alexander). L. iNDiGENA 0. S. Bar Harbor ; Long Pond ; Echo Lake, June 20-Sept. 1. L. PARiETiNA 0. S. Beech Mt., Sept. 10 (Alexander). L. soLiTARiA 0. S. Common, June 13-Sept. 1. L. TRiocELLATA 0. S. Bar Harbor; Salisbury Cove; Echo Lake, July 12-Sept. 1. THE MOUNT DESERT REGION 163 L. TRisTiGMA 0. S. Bar Harbor; N. E. Harbor (Minot) ; Echo Lake (Alexander), July 26-Sept. 10. Elephantomyia Osteii Saeken E. wESTwooDi 0. S. Echo Lake; Eagle Lake; Bar Harbor, July 17-24. ToxORHiNA Loew T. MULiEBRis 0. S. Eagle Lake ; Bar Harbor, July 18-24. Cladura Osten Saeken C. (Neocladura) delicatula Alex. Beech Mt., Sept. 10-12 (Alexander). GoNOMYiA Meigen G. bidentata Alex. Echo Lake ; Beech Mt., Aug. 29-Sept. 12 (Alexander). G. suBCiNEREA O. S. Bar Harbor, July 18. Helobia St. Fargeau and Serville H. HYBRiDA Meig. S. W. Harbor, July 11 ; N. E. Harbor, Aus:. 11 (Minot). MoLOPHiLUS Curtis M. FORCiPULA 0. S. Long Pond; Bar Harbor, July 16-24. M. hirtipennis 0. S. S. W. Harbor; Bar Harbor, July 11-17. M. puBiPENNis 0. S. Common, July 16-Sept. 11. M. soROR Alex. {M. comatus auct., non Doane). S. W. Harbor, Sept. 11 (Alexander). M. URSiNA 0. S. Bar Harbor, July 22. Erioptera Meigen E. CHLOROPHYLLA 0. S. Loug Poud ; Bar Harbor, July 16-26. E. CHRYsocoMA 0. S. Bar Harbor, July 17-20. E. (Acyphona) armillaris 0. S. Bar Harbor, July 17. E. (Mesocyphona) needhami Alex. Bar Harbor, July 11. E. (Empeda) nyctofs Alex. Upper Hadlock Pond, June 10. E. (Empeda) stigmatica 0. S. Echo Lake, Aug. 29 (Alex- ander). Gnophomyia Osteu Saeken G. tristissima 0. S. N. E. Harbor (Minot) ; Bar Harbor, July 8-22. 164 BIOLOGICAL SURVEY OF Ormosia Kondani 0. DEViATA Dietz. Echo Lake; S. W. Harbor, Sept. 1-11 (Alexander). 0. LUTEOLA Dietz. Echo Lake ; S. W. Harbor, Aug. 28-Sept. 8 (Alexander). 0. MEGACERA Alcx. Echo Lake, Sept. 1 (Alexander). 0. MONTicoLA 0. S. Dry Mt. ; Echo Lake ; S. W. Harbor, Aug. 26-Sept. 10 (Alexander). 0. NiMBiPENNis Alex. Common. Dry Mt. ; Echo Lake ; West- ern Mt., Aug. 25-Sept. 12 (Alexander). 0. NUBiLis 0. S. Echo Lake; Western Mt., Sept. 4-8 (Alex- ander). 0. PYGMAEA Alex. Dry Mt. ; Echo Lake ; S. W. Harbor, Aug. 31-Sept. 10 (Alexander). 0. RUBELLA 0. S. Echo Lake ; S. W. Harbor, Aug. 29-Sept. 10 (Alexander). Ula Haliday U. PAUPERA 0. S. Echo Lake, Sept. 11 (Alexander). U. ELEGANs 0. S. 'Sand Beach,' Great Head, July 11. Adelphomyia Bergroth A. AMERICANA Alcx. Echo Lake; Beech Mt. ; S. W. Harbor, Sept. 1-12 (Alexander). A. CAYUGA Alex. S. W. Harbor, Aug. 30-Sept. 11 (Alexander). Epiphragma Osten Sacken E. FASciPENNis Say. Bar Harbor, June 11-14. LiMNOPHiLA Macquart L. ADusTA 0. S. S. W. Harbor, July 15. L. AREOLATA 0. S. Echo Lake ; Bar Harbor, July 12-20. L. LENTA 0. S. Eagle Lake ; Bar Harbor ; S. W. Harbor, July 18-Sept. 11. L. LUTEA Doane. Common, June 11-July 18. L. BREviFURCA 0. S. Echo Lake, Sept. 4 (Alexander) ; Duck Brook, Sept. 11. L. NiGRiPLEURA Alcx. & Lcoii. Bar Harbor, July 21-24. L. RECONDiTA 0. S. Bar Harbor, June 16-July 21. THE MOUNT DESERT REGION 165 L. (Lasiomastix) macrocera Say. Bar Harbor, Aug. 15. L. (Ephelia) solstitialis Alex. Echo Lake, Sept. (Alex- ander). L. (Dicranophragma) fuscovaria 0. S. Bar Harbor; S. W. Harbor; Echo Lake, July 21-Sept. 1. L. (Prioxolabis) MONTANA 0. S. Bar Harbor; N. E. Harbor (Minot), June 21-30. L. (P.) MUNDA 0. S. Echo Lake, July 12; Beech Mt., Sept. 10-12 (Alexander). L. (P.) RUFiBASis 0. S. Bar Harbor; N. E. Harbor (Minot), June 21-30. L. (P.) UNiCA 0. S. Bar Harbor, June 22. L. (Phylidora) fratria 0. S. Bar Harbor, June 3. L. (Pilaria) quadrata 0. S. Bar Harbor, June 11-July 21. L. (P.) tenuipes Say. Bar Harbor, July 19. PSEUDOLIMNOPHORA Alexander P. coNTEMPTA 0. S. Echo Lake, Aug. 29 (Alexander). P. iNORNATA 0. S. 'Witch Holc' ; Long Pond, June 13-20. P. NovABORACENsis Alex. Echo Lake, Sept. 1-A (Alexander). P. ToxoNEURA 0. S. Bar Harbor, June 13 ; Echo Lake, July 12. Eriocera Macquart E. BRACHYCERA 0. S. Bar Harbor, July 21-Aug. 10. Pedicia Latreille P. ALBiviTTA Walk. Salisbury Cove; N. E. Harbor (Minot) ; Echo Lake (Alexander), Aug. 7-Sept. 1. Tricyphona Zetterstedt T. AUTUMNALis Alex. Loug Pond, Aug. 21; N. E. Harbor, Sept. 6 (Minot) ; Echo Lake, Sept. 10 (Alexander). T. CALCAR 0. S. Bar Harbor; Upper Hadlock Pond; Echo Lake, June 8- July 17. T. iNCONSTANS 0. S. Common, June 11-Sept. 10. T. vERNALis 0. S. Jordan Pond; Long Pond; Bar Harbor, June 10-July 26. Amalopina Osteii Sacken A. FLAVEOLA 0. S. Loug Poud ; Bar Harbor ; Echo Lake, July 16-Sept. 10. 166 BIOLOGICAL SURVEY OF Ehaphidolabis Osteu Sacken R. CAYUGA Alex. S. W. Harbor, Aug. 30-Sept. 11 (Alexander). R. RUBESCENS Alex. Echo Lake; Beech Mt., Sept. 8-12 (Alex- ander). R. TENuiPES 0. S. Dry Mt.; Echo Lake, Aug. 26-Sept. 10 (Alexander). Phalocrocera Schiner P. TipULiNA 0. S. S. W. Harbor ; Salisbury Cove, July 11-18. LiOGMA Osten Sacken L. NODicoRNis 0. S. Bar Harbor ; Echo Lake, June 7-July 12. DoLiCHOPEZA Curtis D. AMERICANA Nccdh. Duck Brook; S. W. Harbor; Long Pond, June 13-20. Oropeza Needham 0. ALBiPES Johns. Bar Harbor, July 21. 0. DORSALis Johns. S. W. Harbor ; Echo Lake, July 13-17. 0. SAYi Johns. Bar Harbor; N. E. Harbor (Minot) ; Echo Lake, June 11-July 12. 0. siMiLis Johns. Duck Brook ; Long Pond, June 13-20. 0. OBscuRA Johns. Common, June 20-Aug. 16. Tanyptera Latreille T. TOPAZiNA 0. S. Bar Harbor, June 8. Stygeropis Loew S. FusciPENNis Loew. S. W. Harbor, July 13; Witch Hole Pond, Aug. 18. Nephrotoma Meigen N. BREvioRicoRNis Doauc. S. W. Harbor, Sept. 5 (Alexander). N. EucERA Loew. Bar Harbor, June 7; S. W. Harbor, July 10-16. N. FERRUGiNEA Fab. Commou, June 11-Aug. 29. N. INCURVA Loew. Bar Harbor; N. E. Harbor (Minot), June 16-Aug. 3. N. PEDUNCULATA Locw. S. W. Harbor, June 21-July 10. THE MOUNT DESERT REGION 167 N. TENUIS Loew. N. E. Harbor; Green Mt. ; Seal Harbor, June 26-July 25. N. XANTHosTiGMA Loew. S. W. HarboT ; Salisbury Cove; N. E. Harbor (Minot), July 20-Sept. 4. TiPULA Linnaeus T. ABDOMiNALis Say. Bar Harbor, July 22-Aug. 18. T. ANGULATA Loew. S. W. Harbor, July 15. T. APicALis Loew. Bar Harbor; N. E. Harbor (Minot), June 21-July 16. T. ARCTiCA Curtis. Bar Harbor ; S. W. Harbor, June 7-21. T. BELLA Loew. Bar Harbor, June 17. T. BicoRNis Forbes. S. W. Harbor, June 21. T. CAYUGA Alex. Bar Harbor, June 7-22. T. FRAGiLis Loew. Western Mt. (Alexander) ; N. E. Harbor (Minot) ; Duck Brook, Sept. 8-24. T. GRATA Loew. N. E. Harbor (Minot) ; S. W. Harbor, July 12-Aug. 16. T. HERMANNiA Alex. Common, July 12-Sept. 3. T. iGNOBiLis Loew. N. E. Harbor, July 17-Aug. 4 (Minot). T. IROQUOIS Alex. Bar Harbor; Long Pond, June 3-July 16. T. LATiPENNis Loew. Commoii, July 11-26. T. MAiNENsis Alex. Dry Mt. : Western Mt., Aug. 28-Sept. 10 (Alexander). T. MONTicoLA Alex. Duck Brook, June 13. T. NOBiLis Loew. Echo Lake, July 12. T. SENEGA Alex. Bar Harbor, June 8. T. siMiLissiNA Dietz. N. E. Harbor, June 27 (Minot). T. STREPENS Loew. Bar Harbor, June 8-17. T. suBMACULATA Loew. Bar Harbor, July 24. T. TEPHROCEPHALA Loew. Eclio Lake; N. E. Harbor (Minot), June 17-July 12. T. TRiviTTATA Say. N. E. Harbor (Minot) ; Beech Mt. (Alex- ander), June 26-Sept. 12. T. UMBROSA Loew. Common, July 17-Sept. 13. T. ULTIMA Alex. Witch Hole Pond ; Beech and Western Mts. (Alexander), Sept. 8-12. T. VALiDA Loew. Bar Harbor, July 21. 168 BIOLOGICAL SURVEY OF T. (Cinctotipula) ALGONQUIN AIgx. N. E. Harbor (Minot) ; Flying Mt. and Western Mt. (Alexander), Aug. 27-Sept. 8. T. (Trichotipula) oropezoides Johns. N. E. Harbor, Aug. 29 (Minot). DlXIDAE DiXA Meigen D. centralis Loew. Bar Harbor, July 25; Duck Brook, Sept. 11. D. MODESTA Johan. Jordan Pond, June 10; S. W. Harbor, Aug. 30-Sept. 10 (Alexander). D. FuscA Loew. Flying Mt., Aug. 26 (Alexander). CULICIDAE CuLiciNAE. Mosquitoes Wyeomyia Theobald W. sMiTHii Coq. Pitcher-plant mosquito. Pond Heath; Sal- isbury Cove; Witch Hole, July 12-30. This species lives only in the water in the leaves of the pitcher-plant {Sarra- cenia purpurea). It is the smallest of the mosquitoes and passes the winter in the larval stage frozen in the ice. CuLEX Linnaeus C. TERRiTANs Walk. Bar Harbor, Sept. 10. The larva lives in puddles and water barrels. Taeniorhynchus Lynch Arribalzaga T. PERTURBANS Walk. Bar Harbor, July 19-29. One of the most troublesome of the mosquitoes. The larvae live among the roots of Carex and do not come to the surface of the water to breathe. It passes the winter as half-grown larva. Aedes Meigen A. ATROPALPUs Coq. 'Rock-pool mosquito.' Bar Harbor, July 10. The larva lives in holes in the rocks. The winter is passed in the Qgg state attached to rocks. A. AURiFER Coq. 'Golden-scaled mosquito.' North end of Long Pond, June 26. The larva lives in spring pools. It passes the winter in the egg state. THE MOUNT DESERT REGION 169 A. CANTATOR Coq. ' Browii salt-marsh mosquito.' Narrows; Bar Harbor; 'Great Heath'; S. W. Harbor, Jmie 9- Aug. 23. A. DiANTAEUs Howard, Dyar & Knab. Bar Harbor; S. W. Harbor, June 7-25. The larvae live in pools in woods. The winter is passed in the egg. A. FiTCHii Felt & Young. Long Pond; S. W. Harbor; Bar Harbor; N. E. Harbor, June 20-July 16. Frequents the woods. The winter is passed in the egg. A. iNTRUDENS Dyar. Bar Harbor ; S. W. Harbor ; Echo Lake, June 7-25. The winter is passed in the egg. The larvae develop early in the spring in pools in the woods. A. LAZARENsis Felt & Youug. Bar Harbor; S. W. Harbor; Echo Lake, June 7-26. The larvae live in pools in the woods in early spring. The winter is passed in the egg. A. FUNCTOR Kby. Northern woods mosquito. Common, June 7-July 12. The larvae live in pools in the woods, develop- ing in early summer. The winter is passed in the egg. A. soLLiciTANS Walk. White-banded salt-marsh mosquito. Narrows, June 26-Aug. 13. The most northern range for this troublesome sea-coast mosquito. It breeds in the pools in the salt marshes, wintering in the egg state. A. sTiMULANs Walk. Brown wood mosquito. Bar Harbor; Echo Lake; S. W. Harbor, June 17-July 30. The winter is passed in the egg. The larvae develop in pools in the woods. Anopheles Meigen A. MACULiPENNis Meig. Outlet of Long Pond, June 20, 1921. This is one of the malaria carriers. As I have taken but one specimen, it is apparently rare on the island. CoRETHRiNAE. Noii-biting mosquitoes Chaoborus Lielitenstein C. AMERicANus Joliau. {C . crisfalUua auct.). S. W. Harbor, July 13. C. TRiviTTATus Locw. Duck Brook, Sept. 11, 1922. 170 BIOLOGICAL SURVEY OF EucORETHRA Underwood E. uNDERwooDi Uiiclerw. Pools in a spring run at the head of Bear Brook, near Bar Harbor, July 21 ; Echo Lake, Sept. (Alexander). The larva is predaceous, feeding upon the larvae of other mosquitoes. PsYCHODiDAE. Moth-flies PSYCHODA Latreille P. ciNEREA Banks. S. W. Harbor, June 18. P. siGNATA Banks. Long Pond; Echo Lake; Bar Harbor, June 27-July 24. P. SLossoNi Will. Bar Harbor; Salisbury Cove, July 19- Aug. 11. Chironomidae. Midges CuLicoiDES Latreille. Biting midges C. SANGUisuGA Coq. Loug Poud, July 16. Ceratopogon Meigeu C. LEVIS Coq. Bar Harbor, June 22-July 28. PsEUDOcuLicoiDES Mallocli p. MUTABiLis Coq. 'Mt. Desert,' July 30 (McAtee). FoRCiPOMYiA Meigen F. SQUAMIPES Coq. 'Mt. Desert,' July 31 (McAtee). Palpomyia Meigen P. NEBULOSA Mall. Bar Harbor, July 21. Johannsenomyia Malloch J. BIMACULATA Locw. Bar Harbor, Aug. 10. Heteromyia Say H. FLAViPEs Meig. Bar Harbor, June 11. H. PLEBiA Loew. Bar Harbor, Aug. 18. H. RUFA Loew. Witch Hole Pond, June 13. H. TRiviALis Loew. Salisbury Cove, July 15. Serromyia Meigen S. FEMORATA Meig. S. W. Harbor, July 13. THE MOUNT DESERT REGION 171 Probezzia Kieffer i P. XANTHOGASTER Kieff. (P. elegans Coq.). Jordan Pond, 1 June 10. Tanypus Meigen ! T. CARNEA Fab. Bar Harbor, July 22-Sept. 13. i T. HiRTiPENNis Loew. Bar Harbor, Sept. 13. T. MELANOPS Meig. Long Pond; Bar Harbor, June 27- , July 19. ; T. MONiLis Linn. Echo Lake, July 12. I Chiron'OMUS Meigen ; C. ANNULARIS De G. Bar Harbor, June 13. i C. BRACHiALis Coq. Bar Harbor, Aug. 10. ■ C. cRisTATus Fab. Bar Harbor; S. W. Harbor, June 16- Aug. 23. C. DEviNCTus Say. Echo Lake, July 12. C. DisPAR Meig. Jordan Pond; Echo Lake, June 10-July 12. ; C. DUX Johan. Bar Harbor, July 20. : C. FALLAX Johan. Duck Brook, June 13. , C. MODESTus Say. Bar Harbor, June 11. ' C. NIGRICANS Johan. S. W. Harbor, July 13-Sept. 10. [ C. PEDELLus De G. Bar Harbor, July 22-24. C. puLCHRiPENNis Coq. Echo Lake, July 12. ; C. QUADRiPUNCTATus Mall. Bar Harbor, July 10. \ C. TAENiAPENNis Coq. Echo Lake, July 12. i C. VARiPENNis Coq. Seal Cove Brook, Sept. 8. ! C. viRiDicoLLis V.d.W. Bar Harbor, June 13. i C. zoNOPTERus Mitch. Echo Lake, June 12. j C. TENDENs Fab. S. W. Harbor, Aug. 30-Sept. 1 (Alexander). ; EuRYCNEMUS Van der Wulp E. sciTULus Coq. Echo Lake, June 17. Chasmatonotus Loew j C. BiMACuLATus 0. S. Echo Lake, July 12. i C. UNiMACuLATus Loew, Bar Harbor; N. E. Harbor; Echo \ Lake, June 22-Julv 24. 1 172 BIOLOGICAL SUKVEY OF Cecidomyiidae (Itonididae) . Gall Midges Catocha Haliday C. sp. N. E. Harbor, July 8. Lkstremia Macquart L.? ACERiFOLiA Felt. S. W. Harbor, June 18, 1921. L. DYARi Felt. Bar Harbor, July 22, 1912. L. soLiDAGiNis Felt. Bar Harbor, July 22, 1919. COPtDYLOMYIA Felt C. TUMiDA Felt. N. E. Harbor, July 8 (Minot). PORRICONDYLA Eondani P. SYLVESTRis Felt. Bar Harbor, Aug. 12, 1921. P. sp. N. E. Harbor, Aug. 6 (Minot). P. sp. Bar Harbor, June 6. Ehabdophaga Westwood R. BATATAS Walsh. "Willow potato-gall. S. W. Harbor; Sal- isbury Cove, Aug. 5 (Sanford). R. BRASsicoiDEs Walsh. Willow cabbage-gall. Bar Harbor; Salisbury Cove, Aug. 5 (Sanford). R. sALiciFOLiA Felt. Spiraea pod-gall. Salisbury Cove; Bar Harbor. R. sTEOBiLoiDEs Walsli. Coiie willow-gall. Common, a cone- like gall on willow. R. TRiTicoiDES Walsh. Wheat-ear willow-gall. Bar Harbor, July 10. Dasyneura Eoudani D. GAYLussACii Felt. Blueberry leaf -gall. Lasioptera Meigen L. spiRAEAFOLiA Felt. Bar Harbor. A blister-leaf gall on Spiraea latifolia (meadow sweet). Neolasioptera Felt N. RAMUscuLA Beutm. Aster stem gall. S. W. Harbor. Fusi- form stem galls on asters. ASTEROMYIA Felt A. CARBONiFERA Felt. Commou. An oval black, ocellate blis- ter-gall on the leaves of Solidago. THE MOUNT DESERT REGION 173 Phytophaga Eondani P. RiGiDAE 0. S. Beaked willow-gall. Bar Harbor ; Salisbury Cove. Oligothrophus Latreille 0. sp. Long Pond, June 20. AsPHONDYLiA Loew A. ANTENNAEiAE Wheeler. Everlasting-bud gall. Bar Har- bor, Aug. 15. Corn-shaped bud gall on Everlasting (An- tennaria plantaginifolia) . CiNCTICORNIA Felt C. MAGALis 0. S. Oak-vein gall. Bar Harbor. A vein gall on the leaves of the red oak. C. piLULAE Walsh. Oak-pill gall. Bar Harbor; Salisbury Cove. Round, hard, rough galls on the leaves of the red oak. CONTARINIA Roiidaui C. CANADENSIS Felt. Ash-Hiidrib gall. Bar Harbor, June. C. viRGiNiANAE Felt. Choke-chcrry midge. Salisbury Cove. This midge causes swollen deformed fruit on the choke- cherry. C. spiRAEiNA Felt. Spiraea cabbage-gall. S. W. Harbor. A terminal cabbage-like bud-gall. Trishormomyia Kieffer T. CANADENSIS Felt. ' Juue-berry lipped gall.' S. W. Harbor; Bar Harbor, June. A truncated red-lipped gall on the shadbush (Amelanchier canadensis). Obolodiplosis Felt 0. ROBiNiAE Hald. Locust-leaf midge. Salisbury Cove, July 14. Forming rolled leaf-margins on locust {Robinia pseudo-acacia). Mycodiplosis Eiibsaamen M. popuLiFOLiA Felt. Salisbury Cove; Bar Harbor, Aug. Bullet-like swelling at the base of poplar leaves. 174 BIOLOGICAL SURVEY OF Cecidomyia Meigen (Itonida Meigen) C. NivEiPiLA 0. S. 'Oak fold gall.' Salisbury Cove, Aug. An irregular white pubescent gall on the under side of the leaf, with a fold on the upper side. C. ocELLARis 0. S. 'Maple leaf-spot.' Common. A yellow red-margined blister leaf -gall. C. PELLEX 0. S. Ash bullet gall. Bar Harbor. Round red gall on the midrib. C. sp.? Toothed purse gall. Common. A flattened pouch gall on the leaves on the shadbush {Amelanchier) . Mycetophilidae. Fungus gnats BOLiTOPHiLA Meigen B. DisjuNCTA Loew\ Bar Harbor; Seal Cove, June 11- Sept. 10. B. MONTANA Coq. Bar Harbor, June 7. Symmerus Walker S. TEisTis Loew. Bar Harbor, Aug. 10. DiADOCiDiA Euthe D. FERRUGiNosA Mcig. Loug Poud, June 27. AsiNDULUM Wiiinertz A. coxALE Loew\ Bar Harbor; Salisbury Cove, Aug. 10-11. A. MONTANUM Roeder, Green Mt. ; S. W. Harbor; N. E. Harbor (Minot), Aug. 17-25. Ceroplatus Bose C. CLAUsus Coq. Sieur de Monts Spring, Sept. 13, C. MiLiTARis Johan. Sieur de Monts Spring, Sept, 13. Platyura Meigen P. GENERALis Johau. N. E. Harbor, July 12 (Minot). P. MENDOSA Loew. Bar Harbor; Long Pond, July 21-Aug. 10. P. FAsciPENNis var. SAGAX Johau. Salisbury Cove, July 27. Macrocera Meigen M. CLARA Loew. Bar Harbor, July 20-Aug. 10, M. FORMOSA Loew, 'George,' Green Mt,, July 25. M. HiRsuTA Loew. Bar Harbor, July 20. ;k>' THE MOUNT DESERT REGION 175 M. INCONCINNA Loew. Echo Lake; Bar Harbor, June 15- Julv 20. M. NEBULOSA Coq. Bar Harbor; Green Mt.; S. W. Harbor, Jnne 20-July 26. MONOCLONA Mik M. ELEGANTULA Jolian. Bar Harbor, Aug. 10. EuDiCRANA Loew E. OBUMBRATA Loew. Bar Harbor, June 14. ScioPHiLA Meigen S. GLABANA Johau. Eclio Lake; Bar Harbor, July 17-22. S. PALLiPES Say. N. E. Harbor, Aug. 11 (Minot). POLYLEPTA Winnertz P. oBEDiENs Johan, Bar Harbor, July 21. Mycomya Eondaiii M. APPENDicuLATA Loew. Duck Brook, Sept. 11. M. HiRTicoLLis Say.? Echo Lake, June 17. M. iMiTANs Johan. Echo Lake; S. W. Harbor; Bar Harbor, July 17-Sept. 10. M. ixcoMPTA Johan. Bar Harbor, June 15. M. LiTTORALis Say. Bar Harbor, June 13-Aug. 15. M. OBLIQUA Say. Bar Harbor, July 22-30. M. ONUSTA Loew. N. E. Harbor, June 30 (Minot). M. SEQUAX Johan. Duck Brook, June 13. M. TANTiLLA Locw. 'Mt. Dcscrt,' July 30 (McAtee). Neuratelia Rondani N. sciTULA Johan. Bar Harbor, June 15; S. W. Harbor, July 20. Allocotocera Mik A. PARVULA Coq. Green Mt., Aug. 17. BoLETiNA Staeger B. TRiciNCTA Loew. Echo Lake; Bar Harbor; Green Mt., July 12-25. B. NOTESCENS Johau. Bar Harbor, July 21. 176 BIOLOGICAL SURVEY OF ■ Leia Meigen L. MELAENA LoGw. Duck Brook, Aug. 18. L. oBLECTABiLis LoGw. Bar Harbor; X. E. Harbor (Minot), July 24-Aiig. 11. L. opiMA Loew. N. E. Harbor (Minot); Echo Lake; Bar : Harbor, July 4-Sept. 11. j L. suBLUNATA LoGW. Bar Harbor, July 21. \ L. vENTRALis Say. Narrows, Aug. 13. L. wiNTHEMii Lehm. N. E. Harbor, Aug. 11-27 (Minot). i Syntemna Winnertz ; S. POLYZONA Loew. Bar Harbor, July 21. ; Trichonta Winnertz , T, PERSPicuA V.d.Wulp. Bar Harbor, June 11, j CoRDYLA Meigeu . C. voLucRis Johan. Duck Brook, Sept. 11. ' Brachypeza Winnertz B. BisiGNATA var. DivERGENS Joliau. Bar Harbor, June 11. i Allodia Winnertz | A. ELATA Johan. Green Mt., July 25. ExECHiA Winnertz E. AuxiLiARiA Johan. Long Pond, June 27. E. BELLTJLA Johau. Loug Pond, June 27. Mycothera Winnertz M. iMPELLANs Johan. Bar Harbor, Aug. 10. Mycetophila Meigen M. FASTOSA Johan. Bar Harbor, July 21. M. MUTicALoew. Duck Brook, Sept. 11, 1922.' " M. oBscuRA Walk.? S. W. Harbor, Sept. 6. M. PERLONGA Johan. Bar Harbor; Duck Brook; Green Mt., June 13-Sept. 11. M. PUNCTATA Meig. Bar Harbor, July 20. M. scALARis Loew. Bar Harbor; Salisbury Cove, June 15- Sept. 11. M. sociA Johan. 'Mt. Desert,' July 30 (McAtee). M. TRiCHONOTA LoGW. Bar Harbor; Echo Lake, June 14- Sept. 11. THE MOUNT DESERT REGION 177 ScEPTONiA Winnertz S. NIGRA Meig. 'Mt. Desert,' July 30 (McAtee). SCIARIDAE Zygoneura Meigen Z. FLAVicoxA Johan. Bar Harbor, July 22. SciARA Meigen S. HABiLis Johan. N. E. Harbor, July 4 (Minot). S. ocHROLABis Loew. Bar Harbor, June 11. S. scioPHiLA Loew. Bar Harbor, Aug. 16. Neosciaba Pettey N. FUMiDA Johan. Bar Harbor, July 22. N. HASTATA Johan. Bar Harbor, July 22. N. sYLVESTRis Kieffer. Echo Lake, July 12. N. VARiANS Johan. N. E. Harbor, Aug. 11 (Minot). BiBIONIDAE Plecia Wiedemann P. HETEROPTERA Say. S. W. Harbor ; Echo Lake ; Bar Harbor, Sept. 7-13. BiBio Geoffroy B. BASALis Loew. Bar Harbor; Echo Lake; S. W. Harbor, June 11-24. B. LONGiPES Loew. S. W. Harbor, Sept. 6. B. VARIABILIS Loew. Bar Harbor ; Echo Lake, June 8-17. SCATOPSIDAE Swammerdamella Enderlein S. BREvicoRNis Mclg. S. W. Harbor ; Narrows; Bar Harbor, July 11-Aug. 18. Riechertella Enderlein R. FEMORALis Meig. S. W. Harbor, July 14. Rhegmoclema Enderlein R. ATRATA Say. 'Mt. Desert,' July 31 (McAtee). Aldrovandiella Enderlein A. HALTERATA Meig. *Mt. Desert,' July 30 (McAtee). 178 BIOLOGICAL SURVEY OF SiMULIIDAE Prosimulium Kaubaud P. HiRTiPEs Fries. Echo Lake; Green Mt., June 17-Jnly 25. SiMULiUM Latreille. 'Black flies' S. PARNASSUM Mall. Bar Harbor, July 11. S. VENUSTUM Say. Bar Harbor; S. W. Harbor, June 7-25. Blepharoceridae Blepharocera Macquart B. TENuiPES Walk. Duck Brook, June 13. Xylophagidae Khachicerus Haliday R. NiTiDUs Johns. Foot of Pickett Mt. ; Bar Harbor, July 29, 1919. Xylophagus Meigen X. rufipes Loew. Strawberry Hill; Bar Harbor, June 9, 1921. Stratiomyidae Allognosta Osten Sacken A. BREvicoRNis Johiis. Salisbury Cove, July 12. A. FusciTARSis Say. S. W. Harbor; Bar Harbor, July 11-22. A. oBSCuRivENTRis Loew. Bar Harbor; N. E. Harbor (Minot), June 7-26. Actina Meigen A. viRiDis Say. Bar Harbor; Echo Lake; S. W. Harbor, June 7-21. Macrosargus Bigot (Sargus of authors) M. cupRiNus Linn. Salisbury Cove, July 12-Aug. 10. M. DECORUS Say. Salisbury Cove; Bar Harbor, June 9-16. MicROCHRYSA Loew M. poLiTA Linn. Common, July 17-Aug. 15. Stratiomyia Geoffroy S. BADiA Walk. Common on flowers, July 12-Aug. 1. THE MOUNT DESERT REGION 179 Odontomyia Meigen 0. ciNCTA Oliv. Narrows, June 26; July 17, pupa, imago, July 21. 0. PUBESCENS Day. S. W. Harbor ; Narrows ; Salisbury Cove, June 9- July 13. O. VIRGO Oliv. S. W. Harbor, July 11. Tabanidae BuPLEX Austen (Pangonia of authors iu part) B. TRANQuiLLA 0. S. Common, July 20-Aug. 13. Chrysops Meigen. Deer or moose flies C. CALLiDA 0. S. Salisbury Cove, July 24-Aug. 7. C. CARBONARiA 0. S. Commoii, June 11-July 15. C. CELER 0. S. Salisbury Cove, July 13-Aug. 11. C. EXCiTANs Walk. Common, June 7-July 20. C. FRiGiDA 0. S. Common, June 9-July 18. C. FULiGiNOSA Wied. Narrows, June 26 ; S. W. Harbor, July 9 (Fernald). C. LATERALIS Wied. {hilaris 0. S.). Salisbury Cove; Bar Harbor, July 14-Aug. 12. C. MiTis O. S. Sargent Mt. ; Bar Harbor, June 7-July 10. C. NIGER Macq. S. W. Harbor, June 21-July 10. C. STRIATA 0. S. Bar Harbor ; Salisbury Cove, July 20-25. C. viTTATA Wied. Bar Harbor; Salisbury Cove, July 13- Aug. 10. Tabanus Linnaeus. Horse flies T. AEFiNis Kby. Bar Harbor, July 30. T. ASTUTus 0. S. Salisbury Cove, July 18-25. T. ciNCTus Fab. Salisbury Cove, Aug. (Dahlgren). T. EPiSTATEs 0. S. Common, June 8-July 31. T. LASioPHTHALMUS Macq. Common, June 7-July 22. T. MiCROCEPHALus 0. S. Common, July 24-Aug. 26. T. NiGROviTTATUs Macq. Common * green-head.' Narrows: Salisbury Cove, July 18-27. T. oHioENsis Hine. Salisbury Cove, July 15 (Olsen) ; S. W. Harbor, July 15. 180 BIOLOGICAL SURVEY OF T. pEMETicus Johns. N. E. Harbor, July 22 (Minot) ; Green Mt., Aug. 17 ; S. W. Harbor, Aug. 20. The type locality of the species. The name is derived from Pemetic, the Indian name of the island. T. sEPTENTEiONALis Locw. S. W. Harbor ; Echo Lake; Nar- rows, July 15-Aug. 23. T. TRispiLus var. sodalis Will. Echo Lake; Salisbury Cove; Bar Harbor, July 17-29. T. zoNALis Kby. S. W. Harbor, July 11. Rhagionidae (Leptidae) Ehagio Fabricius {Leptis Fabricius) E. GRACILIS Johns. Sieur de Monts Spring; Duck Brook, July 22-Aug. 18. R. MYSTACEA Macq. Common, June 13-July 4. Chrysopilus Macquart C. QUADEATUs Say. Common, July 8-20. Spania Meigen S. NIGRA var. AMERICANA Jolius. Witch Holc Pond; Jordan Pond, June 10-21, 1921. Cyrtidae. Little-headed flies Ogcodes Latreille O. cosTATus Loew. S. W. Harbor, July 15. 0. PALLiDiPENNis Loew. Loug Poud ; Salisbury Cove, July 16-Aug. 7. Opsebius Costa 0. pTERODONTiNus 0. S. Top of Robiuson Mt., May 1, 1912 (Fernald). BoMBYLiiDAE. Bee flies Anthrax Scopoli (Spogostylum Macquart) A. oEDiFus Fab. Bar Harbor; Tremont, July 29- Aug. 23. Parasitic in the nests of solitary wasp {Odynerus) . Exoprosopa Macquart E. CAPUCiNA Fab. S. W. Harbor; Salisbury Cove, July 15. THE MOUNT DESERT REGION 181 Villa Lioy (Anthrax of authors) V. ALTERNATA Say. Bar Harbor, July 20. V. HYPOMELAS Macq. S. W. Harbor, Aug. 5-22. This has been bred from one of the cut-worms. V. LATERALIS Say. Common, July 29-Aug. 23. V. LATERALIS var. GRACILIS Macq. Bar Harbor ; S. W. Harbor, July 15-22. V. PULviANA var. nigricauda Loew. Common, July 19-Sept. 6. V. MORio Linn. Bar Harbor; Salisbury Cove; S. W. Harbor, June 11- July 17. V. TEGMiNiPENNis Say. S. W. Harbor, July 17-Aug. 21 (Fernald). BoMBYLius Linnaeus B. PYGMAEus Fab. Bar Harbor, June 7-11. Therevidae Thereva Latreille T. FLAYiciNCTA Loew. S. W. Harbor, July 31; Seal Cove Brook, Sept. 18. T. FRONTALIS Say. Echo Lake, July 17. SCENOPINIDAE ScENOPiNus Latreille S. FENESTRALis Liiiii. N. E. Harbor, Aug. 10 (Minot). AsiLiDAE. Robber-flies Leptogaster Meigen L. RADIUS Loew. Salisbury Cove, July 24, 1925. L. TESTACEA Loew. Mouth of Northeast Creek, July 25, 1925. DiocTRiA Meigen D. ALBius Walk. S. W. Harbor; Green Mt., June 25-Aug. 17. Cyrtopogon Loew C. ALLENi Back. Bar Harbor; Duck Brook; Echo Lake (Alexander), Aug. 16-29. C. FALTO Walk. Bar Harbor ; Echo Lake, June 8-July 17. C. LUTATius Walk. Upper Hadlock Pond; Bar Harbor, June 10-July 29. C. TENUIS Bromley. S. W. Harbor, July 20, 1923. The type locality. 182 BIOLOGICAL SURVEY OF PoGONOSOMA Eondani P. RiDiNGSii Cress. Seal Harbor (Prof. Edw. S. Morse). Dasyllis Loew D. iNSiGNis Banks. Common, June 17-Aug. 22. D. FLAVicoLLis Say. Bar Harbor; S. W. Harbor, June 11- Aug. 16. D. posTicATA Say. Common, June 30-Aug. 25. D. SACRATOR Walk. Salisbury Cove, Aug. 7, 1926. Laphria Meigen L. AEATus Walk. S. W. Harbor, Aug. 8, 1910 (Fernald). L. ALTiTUDiNUM Bromley. Bar Harbor, June 16. L. CANis Will. Common, June 25-Aug. 17. L. GiLVA Linn. Bar Harbor ; Salisbury Cove, July 18- Aug. 14. L. JANUS McAtee. Common, June 7-July 24. L. SADALES Walk. Bar Harbor, July 29. L. SCORPIO McAtee. Bar Harbor; S. W. Harbor, July 24- Aug. 22. L. SERICEA Say. S. W. Harbor (Fernald). AsiLUS Linnaeus A. NOTATus Wied. Common, June 20- Aug. 26. A. NOVAE-scoTiAE Macq. Salisbury Cove; Bar Harbor, July 24-Aug. 18. I A. ORPHNE Walk. Echo Lake, June 27. j A. PAROPUs Walk. S. W. Harbor, July 15- Aug. 24. i A. SADYATEs Walk. Salisbury Cove; N. E. Harbor; Echo ; Lake, July 13-Sept. 7. j A. SNOwii Hine. Bar Harbor ; Salisbury Cove, July 10-15. j DOLICHOPODIDAE i SciAPUS Zeller (Psilopus Meigen) S. TENER Loew, Salisbury Cove, July 15. S. CAUDATus Wied. Salisbury Cove, July 15-25. I S. FLAviPES Aldr. Salisbury Cove, July 15. j S. scROBiNATOR Locw. Commoii, July 12-25. DiAPHORUS Meigen D. GiBBosus Van Duzee. S. W. Harbor, June 25-July 11. D. OPACUS Loew. Salisbury Cove, July 25. THE MOUNT DESERT REGION" 183 Chrysotus Meigen C. AFFiNis Loew. S. W. Harbor ; Salisbury Cove, July 13-16. Campsicnemus Haliday C. WHEELERi Van Duzee. Bar Harbor, Aug. 4. Argyra Macquart A. ANGUSTATA Vail DuzGG. Eclio Lake, July 17, 1918. A. CALCEATA Loew. Bar Harbor, July 19; Salisbury Cove, Aug. 9. A. ROBUSTA Johns. Bar Harbor, June 11. Leucostola Loew L. ciNGULATA Loew. Bar Harbor; Echo Lake, June 20- Sept. 7. Rhaphium Meigen {Porphyrops Meigen) R. FUMiPENNis Loew. Bar Harbor; Echo Lake, June 15-27. R. LONGiPEs Loew. Echo Lake ; Long Pond, July 12-16. R. MELAMPus Loew. Long Pond, June 27. R. NiGRicoxA Loew. S. W. Harbor, June 16. R. SLossoNAE Johns. Bar Harbor, July 26. Sympycnus Loew S. LiNEATus Loew. Salisbury Cove; Long Pond, Aug. 13- Sept. 7. NoTHOSYMPYCNUs Wheeler N. LUTEiPEs Van Duzee. Bar Harbor, July 22. Neurogonia Rondani N. FLORiDULA Wheeler. Common, June 13-July 16. N. DEFORMis Van Duzee. Bar Harbor, June 21. N. NiTiDA Van Duzee. Bar Harbor, July 11. Chrysotimus Loew C. DELiCATus Loew. Salisbury Cove, July 14. Medeterus Fischer von Waldheim M. MODESTus Van Duzee. Bar Harbor, June 11. 184 BIOLOGICAL SURVEY OF Hydrophorus Fallen H. AESTUANs Loew. Echo Lake; Sand Beach, June 17- Sept. 13. H. CHRYSOLOGUS Walk. S. W. Harbor ; Bar Harbor, July 13- Aug. 10. H. iNTENTus Aldr. Narrows, Aug. 13. H. piRATA Loew. Bar Harbor, June 21. Orthocerattum Schrank (Liancalus Loew) 0. GENUALis Loew. Western Mt., Sept. 8 (Alexander). DoLiCHOPUS Latreille D. ALBiciLiATus Locw. Bar Harbor, June 13-Sept. 9. D. ADULTUS Van D., Cole & Aldr. Echo Lake, June 17. D. CALAiNus Mel. & Brues. Bar Harbor, July 10. D. coMATus Loew. Common, June 11-Sept. 7. D. cupRiNus Wied. Bar Harbor ; Narrows, July 22-27. D. DEFLECTus Van D., Cole & Aldr. Bar Harbor, Sept. 9. D. DisciFER Stannius. Common, June 13-July 27. D. FULviPEs Loew. Common, June 13-July 15. D. iNDiGENA Van D., Cole & Aldr. Bar Harbor, Aug. 18. D. LONGiMANUS Loew. Echo Lake; Bar Harbor, July 10-22. D. MARGiNATus Aldr. Bar Harbor; 'Narrows,' June 13- July 27. D. MELANocERus Loew. Wltch Hole Pond; Bar Harbor, July 30-Sept. 13. D. MULTisETosus Vau D., Cole & Aldr. Bar Harbor, July 10. D. oRNATiPENNis Vau D., Cole & Aldr. 'Heath,' Salisbury Cove ; Duck Brook, Aug. 9-18. D. PLUMiPEs Scop. S. W. Harbor, July 15. D. PORPHYROPS Van D., Cole & Aldr. S. W. Harbor, June 16. D. PUGiL Loew. Tremont ; Narrows, June 9-July 27. D. RAMiFER Loew. S. W. Harbor, July 13. D. REMiPES Wohlberg. Witch Hole Pond ; Bar Harbor, July 26-30. On water-lily pads. D. scoPARius Loew. Duck Brook; Bar Harbor, June 13-22. D. SETiFER Loew. S. W. Harbor ; Salisbury Cove, July 13-15. D. sETOsus Loew. S. W. Harbor, Julv 13. THE MOUNT DESERT REGION 185 D. siNCERus Mel. Long Pond ; Bar Harbor, July 16-Aug. 18. D. sLossoNAE Van D., Cole & Aldr. Echo Lake ; Bar Harbor, June 17-July 21. D. socius Loew. S. W. Harbor ; Long Pond, July 15-16. D. SOCIUS var. gladius Van D,, Cole & Aldr. Salisbury Cove, July 15. D. VARIABILIS Loew. Bar Harbor, July 20-Sept. 11. D. VARIABILIS var. GRACILIS Aldr. S. W. Harbor, July 15- Aug. 23. D. WHEELERi Mel. & Brues. S. W. Harbor, July 15. Hercostomus Loew Subgenus Gymnopternus Loew H. ALBicEPs Loew. Jordan Pond, June 10. H. CHALCocHRus Loew. Long Pond, July 16. H. FREQUENs Loew. Commoii, June 8-July 17. H. PHYLLOPHORUS Loew. S. W. Harbor; Long Pond, June 18- July 13. H. sPECTABiLis Loew. Echo Lake, June 27. H. suBDiLATus Loew. Bar Harbor, Aug. 12. H. suBULATUS Loew. Common, July 13-27. Paraclius Loew P. viciNus Aldr. Narrows, July 27. Tachytrechus Loew T. MOECHus Loew. Witch Hole Pond, June 13. Pelastoneurus Loew P. LAMELLATus Locw. Trcmont ; Narrows, June 20-July 27. P. VAGANs Loew. Bar Harbor, Sept. 13. Empididae EuDRAPETis Melander E. ARMATA Mel. Narrows; Salisbury Cove, July 15-27. E. PARvicoRNis Mel. Narrows, June 9; Salisbury Cove, July 25. E. SPECTABILIS Mell. Narrows, July 27. 186 BIOLOGICAL SURVEY OF Platypalpus Macquart P. AEQUALis Loew. Narrows, July 27. P. CRASSiFEMORis Fitch. S. W. Harbor, July 13. P. FLAViRosTRis LoGW. Eclio Lake ; Green Mt., July 12-25. P. suTOR Mel. S. W. Harbor, July 13. Tachypeza Meigeii T. ROSTRATA Loew. Bar Harbor; N. E. Harbor (Minot), June 1-Sept. 5. Chelipoda Macquart C. ELONGATA Mel. Eclio Lake ; S. W. Harbor, July 12-Sept. 3. Hemerodromia Meigen H. NOTATA Loew. Long Pond, July 16-Aug. 21. H. PALLORis Coq. Bar Harbor ; Duck Brook, July 20-30. H. scAPULARis Loew. Jordan Pond; Long Pond, June 10- July 16. Clinocera Meigen C. coNjuNCTA Loew. Green Mt., July 25. C. CTENisTES Mel. Bar Harbor ; Duck Brook, June 4-13. Syneches Walker S. SIMPLEX Walk. Salisbury Cove, July 15. Syndyas Loew S. DORSALis Loew. Breakneck Pond, Sept. 8. S. POLiTA Loew. S. W. Harbor; Echo Lake, July 11-12. EuHYBOS Coquillett E. TRIPLEX Walk. S. W. Harbor; Bar Harbor, June 21- July 26. Hybos Meigen H. SLossoNAE Coq. S. W. Harbor, July 13-30. Oedalea Meigen 0. OHioENsis Mel. Echo Lake, June 7. Leptopeza Macquart L. coMPTA Coq. S. W. Harbor; N. E. Harbor; Echo Lake, June 16-July 12. L. FLAviPEs Meig. Bar Harbor ; Echo Lake, June 7-27. THE MOUNT DESERT REGION 187 OcYDROMiA Meigen 0. GLABRicuLA Fall. Eclio Lake; Bar Harbor; Narrows, July 12-27. Empis Linnaeus E. NUDA Loew. Echo Lake, June 27. E. RUFEscENs Loew. Common, June 7-July 17. HiLARA Meigen H. FEMORATA Loew. Bar Harbor, June 8-15. H. GRACILIS Loew. Common, July 30-Aug. 26. H. LEUCOPTERA Loew. Narrows ; Pretty Marsh, June 9-20. H. TRisTis Loew. Common, June 13-July 16. Oreogeton Scliiner 0. OBscuRA Loew. Jordan Pond ; Long Pond, June 10-27. 0. RUFA Loew. Jordan Pond; Long Pond, June 10-July 10. Anthalia Zetterstedt A. FLAVA Coq. S. W. Harbor ; Long Pond, June 24-July 16. Trichina Meigen T. FLAViPEs Meig. Jordan Pond; S. W. Harbor; Echo Lake, June 10-July 17. MiCROPHORUS Macquart M. ATRATus Coq. Jordan Pond; Bar Harbor; Echo Lake, June 10-July 19. Cyrtoma Meigen C. piLiPEs Loew. Salisbury Cove; S. W. Harbor, July 27- Aug. 26. Ehamphomyia Meigen R. AMPLiPEDis Coq. Bar Harbor; S. W. Harbor, June 13-20. E. AMERICANA Wlcd. S. W. Harbor, June 24. R. ARCUATA Coq. Seal Harbor, Sept. 8. R. BASALis Loew. Bar Harbor; Echo Lake, June 7-July 12. R. CANDiCANs Loew. S. W. Harbor; Long Pond, July 10-17. R. DEBiLis Loew. N. E. Harbor ; Long Pond, June 29-July 16. R. GiLviPEs Loew. Bar Harbor; S. W. Harbor; Long Pond, June 13-July 16. 188 BIOLOGICAL SURVEY OF E. GRACILIS Loew. N. E. Harbor; Bar Harbor, July 26- Aug. 18. R. IRREGULARIS LoGW. Loilg Poiicl, JuilG 27. R. LiTURATA Loew. Bar Harbor, June 8. R. LUTEivENTRis Loew. Bar Harbor; S. W. Harbor, Echo Lake, June 13-27. R. MANCA Coq. Echo Lake; Bar Harbor; Salisbury Cove, July 12-27. R. MUTABiLis Loew. Bar Harbor; Long Pond, June 16- July 16. R. PHEMius Walk. Bar Harbor ; Echo Lake, June 15-17. R. PRiAPULus Loew. Bar Harbor ; Echo Lake ; S. W. Harbor, June 13-July 10. R. PULLA Loew. Bar Harbor; Long Pond; S. W. Harbor, June 9-July 30. R. pusio Loew. S. W. Harbor, June 24. R. RusTicA Loew. Bar Harbor ; Long Pond, Aug. 18-21. R. SETOSA Coq. Bar Harbor, June 9-July 17. R. TERSA Coq. S. W. Harbor, June 24. R. UMBROSA Loew. Long Pond, June 27. R. VALGA Coq. Bar Harbor, June 7. R. VARA Loew. S. W. Harbor ; Echo Lake, June 20-27. R. viRGATA Coq. S. W. Harbor, June 21. LONCHOPTERIDAE LoNCHOPTERA Meigen L. FURCATA Fall. (L. riparia Meig.). Bar Harbor, July 24. L. FURCATA var. LACusTRis Mclg. S. W. Harbor, July 13. Phoridae Chaetaneurophora Malloeh C. cuRviNERvis Beck. S. AV. Harbor, Aug. 13. Hypocera Lioy H. FEMORATA Mclg. S. W. Harbor ; Echo Lake; N. E. Harbor (Minot), July 13-Aug. 8. Aphiochaeta Brues {Megaselida Rondani) A. ciLiATA Belt. Bar Harbor, July 22. A. MINOR Zett. 'Mt. Desert,' July 28 (McAtee). THE MOUNT DESERT REGION 189 A. NiGRicEPS Loew. N. E. Harbor (Minot) ; Long Pond; Bar Harbor, July 26-Sept. 11. A. piCTA Lehm. Bar Harbor; Green Mt. ; N. E. Harbor (Minot), July 21-Sept. 13. A. puLicARiA Fall. 'Mt. Desert,' July 31 (McAtee). A. PYGMAEA Zett.? 'Mt. Desert,' July 31 (McAtee). A. EUFiPEs Meig. Bar Harbor, July 22-Sept. 10. A. sTRAMiNiPEs Mall. Bar Harbor, July 22. Apocephalus Coquillett A. BOREALis Brues. Salisbury Cove, July 17, 1923. Type locality. Gymnophora Maequart G. QUARTOMOLLis Sclimitz {G. arcuata auct.). *Mt. Desert,' July 30 (McAtee). Phora Latreille P. ATERRiMA Fab. Eclio Lake; Bar Harbor; S. W. Harbor, July 12-22. P. VELUTINA Meig. Green Mt. ; Bar Harbor, Aug. 17-Sept. 10. CoNiCERA Meigen C. ATRA Meig. 'Mt. Desert,' July 31 (McAtee). Platypezidae. 'Flat-footed flies' The larvae live in decaying fungi Agathomyia Verrall A. NOTATA Loew. Bar Harbor; Duck Brook; S. W. Harbor, July 24-30. A. puLCHELLA Johus. Bar Harbor; Witch Hole Pond, July 22-Aug. 18. A. TALPULA Loew. Echo Lake ; Long Pond, June 27-July 16. Callimyia Meigen C. VELUTINA Johns. Duck Brook; Long Pond, June 13- July 16. Platypeza Meigen P. ANTHRAX Loew. Echo Lake ; Bar Harbor, Sept. 7-10. P. PALLiPES Loew. (Calofarsa ornatipes Town. $ ). Echo Lake ; Bar Harbor, Sept. 7-10. P. VELUTINA Loew. Loiig Pond, Aug. 31. 190 BIOLOGICAL SURVEY OF Platypezoides Johnson P. DivERSA Johns. Bar Harbor, Sept. 11. Type locality. MiCROSANiA Zetterstedt M. sTiGMATicALis Zett. 'Mt. Desert,' July 31 (McAtee). PiPUNCULiDAE. 'Big-eyed flies' The larvae are parasitic in the bodies of bugs and leaf- hoppers. Chalarus Walker C. spuRius Fall. Bar Harbor, Aug. 16. Verrallia Mik V. piLOSA Zett. Bar Harbor ; S. W. Harbor, June 7-16. PiPUNCULUS Latreille P. AEQuus Cress. Duck Brook, Sept. 11, 1922. P. ATLANTicus Hougli. Bar Harbor, June 7. P. CAUDATUS Cress. Bar Harbor ; Upper Hadlock Pond ; S. W. Harbor, June 9-25. P. ciNGULATus Locw. Bar Harbor; Echo Lake, July 12. P. DUBius Cress. Salisbury Cove ; Green Mt., July 24-25. P. Fuscus Loew. S. W. Harbor ; Salisbury Cove, July 20-23. P. HORVATHi Kertz. Echo Lake, June 17. P. MINOR Cress. Salisbury Cove, July 15. P. PALLiPES Johns. Bar Harbor ; Long Pond, June 10-20. P. scoPARius Cress. Salisbury Cove ; Echo Lake ; S. W. Har- bor, July 14— Sept. 5. P. viDuus Cress. Salisbury Cove, July 13-19. Syrphidae MiCRODON Meigen M. coNFLicTus Curr. Witch Hole Pond, July 20 ; S. W. Har- bor, Aug. 26 (Alexander). M. coTHURNATus Bigot. ^ Great Clearing,' north of Sargent Mt., June 10. M. MANiTOBENsis Curr. Bar Harbor; S. W. Harbor, June 9-22. M. ocELLARis Curr. Bar Harbor, June 9. M. TRisTis Loew. Bar Harbor, June 8-21. THE MOUNT DESERT EEGION 191 Chrysotoxum Meigen C. DERivATUM Walk, Salisbury Cove, Aug. 7, 1926. C. FASCioLATUM De G. Long Pond; S. W. Harbor; Bar Har- bor, June 17-July 24. C. PERPLEXUM Johns. Witch Hole Pond ; S. W. Harbor, Aug. 18-Sept. 6. Chrysogaster Meigen C. NiGRiPEs Loew. Bar Harbor, July 21. C. PULCHELLA Will. S. W. Harbor ; Bar Harbor, July 10-19. PiPiZA Fallen P. FEMORALis Loew. Bar Harbor, June 8. P. NiGROPiLOSA Will. Bar Harbor, June 8. P. QUADRiMACULATA Pauz. Bar Harbor; Echo Lake, June 13-27. PiPiZELLA Eondani P. PUBESCENS Loew. Bar Harbor; S. W. Harbor, June 15- July 15. P. EECEDENS Walk. Bar Harbor; S. W. Harbor, June 21- July 15. Heringia Eondani H. SALAX Loew. Bar Harbor, July 20-22. Cnemodon Egger C. ELONGATA Curr. Bar Harbor, June 9-17. C. pisTicoiDEs Will. Long Pond ; Salisbury Cove, July 16-24. Paragus Latreille P. ANGusTiFRONs Locw. Salisbury Cove; Bar Harbor, July 17-Aug. 10. P. BicoLOR Fab. Salisbury Cove, July 14. P. TIBIALIS Fall. Bar Harbor; Salisbury Cove, July 22-24. Chilosia Meigen C. oRiLLiAENsis Curr. S. W. Harbor, June 21. Cartosyrphus Bigot C. PALLiPEs Loew. Common, June 26-July 30. C. SLOssoNAE Shan. 'Great Clearing,' north of Sargent Mt., June 10. C. TRisTis Loew. Common, June 12-Sept. 6. 192 BIOLOGICAL SURVEY OF Baccha Fabricius B. coGNATA Loew. Bar Harbor; Echo Lake; N. E. Harbor (Minot), June 11-Aug. 25. Pyrophaena Schiner P. GRANDiTARSus Foerstcr. S. W. Harbor, July 15. P. ROSAEUM Fab. Bar Harbor; S. W. Harbor; Salisbury Cove, June 13-Aug. 9. Platychirus St. Fargeau and Serville P. cHAETOPODus Will. Bar Harbor, June 8. P. HYPERBOREus Stacg. Salisbury Cove, July 25. P. iMMARGiNATUs Zctt. S. W. Hai'bor ; Bar Harbor (Metcalf), June 15-July 25. P. PELTATus Meig. Bar Harbor, June 16-July 17. P. QUADRATus Say. 'Narrows'; Salisbury Cove, June 9- July 27. Melanostoma Schiner M. ANGusTATUM Will. Bar Harbor, June 14. M. coNFUSUM Curr. S. W. Harbor, June 16. M. MELLiNUM Linn. Common, June 22-July 27. M. OBSCURUM Say. Bar Harbor; 'Narrows'; Long Pond, June 21-Sept. 7. Leucozona Schiner L. LEucoRUM var. americana Curr. Bar Harbor; Echo Lake; S. W. Harbor, June 9-23. DiDEA Macquart D. FASciATA var. FusciPEs Loew. Bar Harbor; Echo Lake, June 15-17. Syrphus Fabricius S. ARCUATus Fall. S. W. Harbor, June 21. S. PERPLEXus Osburn. Echo Lake; S. W. Harbor, July 12- Aug. 20. S. AMALOPis O. S. Bar Harbor; Echo Lake, June 9-July 12. S. DisjECTUs Will. Bar Harbor; Salisbury Cove; 'Narrows,' July 22-Aug. 13. THE MOUNT DESERT REGION 193 S. wiEDEMANNi Joliiis. Bar Harbor; 'Narrows,' June 9- Aug. 13. S. LATiFASCiATus Macq. (abbreviatns Will.). Salisbury Cove, July 23-24. S. RiBEsii Linn. Common, July 10-Sept. 9. S. RIBESII var. viTTiFRONs Shall. Bar Harbor; Long Pond; Salisbury Cove ; S. W. Harbor, June 8-Sept. 6. S. RECTUS 0. S. Bar Harbor ; Green Mt. ; S. W. Harbor, July 7-Aug. 20. S. TORvus 0. S. Common, June 15-Sept. 22. S. LAXA 0. S. S. W. Harbor; Bar Harbor; Salisbury Cove, June 21-Sept. 11. S. NiTENS Zett. 'Narrows,' Aug. 13. S. joHNSONi Curr. Bar Harbor, June 22-23. S. LiMATUS Hine. Bar Harbor, June 13, 1921. S. VENusTus Meig. Bar Harbor ; Salisbury Cove ; S. "VV. Har- bor, June 9-22. S. EMARGiNATus Say. Bar Harbor, June 15-Aug. 14. S. FELIX 0. S. Echo Lake, July 17. Epistrophe Walker {Stenosyrphus Matsumura) E. GROssuLARiAE Meig. Bar Harbor; Green Mt., July 22-25. E. XANTHOSTOMUS Will. Bar Harbor, July 19. E. DivERSiPES Macq. Common, June 8-Aug. 11. E. UMBELLATORUM Fab. Bar Harbor ; Green Mt. ; Long Pond, June 11-Aug. 17. E. GENicuLATUs Macq. S. W. Harbor; Green Mt. ; Bar Har- bor, June 22-Sept. 11. E. FisHERi Walt. S. W. Harbor, Aug. 22. E. MENTALis Will. Bar Harbor, June 8-13. E. GENUALis Will. Bar Harbor; Salisbury Cove; S. W. Har- bor, June 7-21. E. ARCTicus Zett. Bar Harbor, Sept. 11, 1922. E. sEXQUADRATus Walk. Bar Harbor, Sept. 10, 1922. E. oRONENsis Metcalf. Bar Harbor, July 19. Allograpta Osteu Sacken A. OBLiQUA Say. Bar Harbor, July 29; Seal Harbor (D. Eockefeller). 194 BIOLOGICAL SUKVEY OF ToxoMEBUS Macquart T. GEMiNATus Say. S. W. Harbor; Bar Harbor, June 21- July 17. T. MARGiNATus Say. Bar Harbor; 'Narrows,' July 18-27. Sphaerophoria St. Fargeau and Serville S. MENTHASTRi Liiiii. Commoii, June 21-July 24. S. NovAEANGLiAE Jolius. Upper Hacllock Pond; Echo Lake, June 10-July 12. Sphegina Meigeii S. ELAviMANA Mall. Eclio Lake; Bar Harbor, June 17- Aug. 10. S. PETioLATA Coq. S. W. Harbor ; Echo Lake; Bar Harbor, June 16- July 27. Neoascia Williston N. GLOBOSA Walk, Bar Harbor, Aug. 10. . Ehingia Scopoli R. NASiCA Say. Bar Harbor; S. W. Harbor; Narrows, June 21-Aug. 13. Hammerschmidtia Shummel H. FERRUGiNEA Fall. Bar Harbor, June 11-17. Brachyopa Meigen B. DivERSA Johns. Bar Harbor, June 8, 1921. Volucella Geoffroy V. BOMBYLANs FACIALIS var. LATERALIS Johiis. Bar Harbor ; S. W. Harbor; Echo Lake, June 7-27. The larvae are com- mensal in the nests of bumble bees. The flies closely re- semble the various species of bumble bees. CoNDiDEA Coquillett C. LATA Coq. Foot of Pickett Mt., June 21. On flower of the Viburnum. C. sEXFAsciATA Walk. South of Manset; S. W. Harbor, June 16, 1921. THE MOUNT DESERT REGION 195 Sericomyia Meigen S. BiFASciATA Will. Eclio Lake, June IT-Jnl}" 12. S. CHRYsoToxoiDEs Macq. Bar Harbor; Echo Lake; S. W. Harbor, June 9-Sept. 8. S. MiLiTARis Walk. S. W. Harbor; Bar Harbor; Echo Lake, June 22-Sept. 8. Eristalis Latreille E. ARBUSTORUM Lhin. Common, June 15-Sept. 6. E. coMPACTus Walk. Bar Harbor; Echo Lake, June 13-17. E. DiMiDiATus Wied. Bar Harbor; S. W. Harbor; Salisbury Cove, June 11-Sept. 6. E. NEMORUM Linn. Bar Harbor ; Salisbury Cove, July 24. E. TENAX Linn. 'Drone fly.' Common, July 10-Sept. 22. The larva is known as the 'rat-tailed larva' and lives in putrid water. E. SAXORUM Wied. Witch Hole Pond, June 13. E. TRANsvERsus Wied. Bar Harbor; S. W. Harbor; Salisbury Cove, June 15-Sept. 6. E. BASTARDii Macq. S. W. Harbor; Salisbury Cove; Bar Har- bor, June 22-Sept. 9. E. FLAViPEs Walk. Bar Harbor; S. W. Harbor, June 11- July 25. Mallota Meigen M. posTicATA Fab. Bar Harbor, June 8-July 27. Merodon Meigen M. EQUESTRis Fab. Narcissus fly. Bar Harbor, July 25, 1916 (Metcalf); July 19, 1919 (C. W. J.). Introduced. The larva lives in Narcissus and other bulbs. Helophilus Meigen H. BOREALis Staeg. {H. glacialis Loew). Narrows, June 9- Aug. 13. H. LATiFRONs Loew. Bar Harbor, July 19. H. FASciATus Walk. {H. s'lmUis Macq., not Curt.). Witch Hole Pond; Bar Harbor; S. W. Harbor, June 13-Sept. 6. 196 BIOLOGICAL SURVEY OF Parhelophilus Girschner R. REX Curran & Fluke. Bar Harbor, July 10. P. LAETUS Loew. Bar Harbor; S. W. Harbor, June 13- July 10. P. oBSOLETus Loew. Bar Harbor ; S. W. Harbor, June 13-21. Lejops Kondani L. RELicTus Curran & Fluke {Helophilus cJirysostoma auct., not Wied.). Bar Harbor, July 10. L. LUNULATUS Meig. {H. hamatus Loew). Witch Hole Pond; Bar Harbor; Salisbury Cove, June 13-July 18. L. (Eurhimyia) STiPATus Walk. {H. conostotna Will.). Witch Hole Pond, June 13. POLYDONTOMYIA WiUiston P. cuRviPES Wied. Narrows, June 9-Aug. 13. EuMERUS Meigen E. STRIGATUS Fall. Lunate onion-fly. Bar Harbor, July 25, 1916 (Metcalf); July 19, 1919 (C. W. J.). Tropidia Meigen T. QUADRATA Say. Bar Harbor; S. W. Harbor, June 11- July 25. Syritta St. Fargeau and Serville S. piPiENS Linn. Bar Harbor ; Tremont, July 14- Aug. 23. Xylotomima Shannon X. CURVIPES var. satanica Bigot. Bar Harbor, June 11; 'Mt. Desert,' July 31 (McAtee). Brachypalpus Macquart B. OARus Walk. {B. front osus Loew). Witch Hole Pond, June 13. Xylota Meigen X. suBFASciATA Locw. Bar Harbor; Long Pond, June 14- July 10. X. EjuNCiDA Say. Bar Harbor; S. W. Harbor; Long Pond, June 11-26. X. EJUNCIDA var. elongata Will. Bar Harbor, June 6-24. X. naknek atlantica Shan. Bar Harbor, June 15-29. THE MOUNT DESEET REGION 197 Cynorhina Williston C. ANALis Macq. Bar Harbor, June 8, 9. C. BADiA Walk. North end, Long Pond, June 26, C. coNFUSA Johns. Bar Harbor; Long Pond; Echo Lake, June 7-26. SoMULA Macquart S. DECORA Macq. Bar Harbor, June 11-15. Spilomyia Meigen S. FuscA Loew. Bar Harbor, July 24-Aug. 16. S. QUADRiFASCiATA Say. Wltch Hole Pond, Sept. 11, 1922. Temnostoma St. Fargeau and Serville T. AEQUALE Loew. Bar Harbor ; Green Mt. ; Long Pond, June 9-July 25. T. ALTERNANs Loew. Bar Harbor; Green Mt., June 15- July 25. T. BOMBYLANS Fab. Bar Harbor, June 15. T. EXCENTRicuM Harr. Bar Harbor; Witch Hole Pond, June 9-13. T. VENUSTUM Will. Bar Harbor ; Salisbury Cove, June 9. CONOPIDAE Physocephala Schiner P. FURCiLLATA Will. Bar Harbor ; Great Pond ; S. AV. Harbor, July 24-Aug. 23. ZoDioN Latreille Z. FULviFRONS Say. S. W. Harbor; Bar Harbor; Green Mt., July 15-25. Z. INTERMEDIUM Bauks. Bar Harbor, Aug. 16. Z. PERLONGUM Coq. Echo Lake, July 12. Thecophora Rondani (Oncomyia Loew) T. ABBREviATA Locw. Eclio Lake; S. W'. Harbor, June 17- July 20. T. LORARiA Loew. Bar Harbor; Sand Beach, Great Head, July 24-Sept. 13. PlIASHDAE CiSTOGASTER Macquart C. occiDUA Walk. Common, June 18-Aug. 16. 198 BIOLOGICAL SURVEY OF Gymnosoma Meigen G. DUBiA West. S. W. Harbor, July 19, 1923. I G. ruLiGiNOSA Desv. Common, June 7-Sept. 10. ' Phasia Latreille I P. AENEOvENTRis Will. Commou, June 25-Aug. 16. | P. PHASioiDES Coq. Bar Harbor, June 15. | P. PULVEREA Coq. Salisbury Cove, July 23, 1925. j P. SPLENDIDA Coq. Salisbury Cove; N. E. Harbor, July 25- ' j Aug. 23. i Trichoclytia Towusend i T. ATRATA Coq. N. E. Harbor, June 26 (Minot). 1 Gymnophania Brauer and Bergenstamm '. G. MONTANA Coq. S. W. Harbor ; Salisbury Cove, June 25- ] July 14. j Tachinidae Ennyommopsis Townsend E. nigrifrons Town. Narrows, Aug. 13, , Emphanopteryx Townsend E. PRiscA Walk. Bar Harbor, June 11-27. I OcYPTEROSOMA Townseud 1 0. POLiTA Coq. Long Pond, July 16. j ScHizOTACHiNA Walker j S. coNVECTA Walk. Salisbury Cove, Aug. 9, 1926. I Thryptocera Macquart j T. AMERICANA Towu. N. E. Harbor, June 26- July 16 (Minot). : AcTiA E.-Desvoidy , A. PALLORis Coq. N. E. Harbor, July 6 (Minot). ; A. piLiPENNis Fall. Common, June 9-Sept. 6. ' Dichaetoneura Johnson D. LEucoPTERA Jolius. S. W. Harbor, July 26-29, bred from I the 'cherry ugly-nest' moth {Archips cerasivorana). Bar Harbor, Aug. 6, bred from the 'oak ugly-nest' moth {Archips fervadana). THE MOUNT DESERT REGION 199 Chaetophleps Coquillett ,' C. SETOSA Coq. S. W. Harbor, Sept. 3. j Celatoria Coquillett j C. DiABROTiCAE Sliimer. Salisbury Cove, July 14. 1 C. spiNOSA Coq. Bar Harbor ; S. W. Harbor, July 30-Sept. 6. AUBAEANETIA ToWllSeilfl i A. ASsiMiLis Town. Common, July 17-24. Paradexodes Townsend I P. sp. S. W. Harbor, July. Bred from Archips. j Lixophaga Townsend L. VARIABILIS Coq. S. W. Harbor, Sept. 6. ; Methypostena Townsend M. BARBATA Coq. Salisbury Cove, July 18. PsEUDENANTHA Townsend j p. PRisTis Walk. Salisbury Cove; Eagle Lake, July 15-18. j POLIDEA Macquart | P. AREOS AValk. Salisbury Cove; Narrows; S. W. Harbor, June 9-Sept. 6. Apinops Coquillett A. ATRA Coq. S. W. Harbor, Aug. 20. Genea Eondani G. TEXENSis Town. Bar Harbor, June 18. Hyalomyodes Townsend H. TRiANGULiFERA Loew. Commoii, June 11-Sept. 6. Eliozeta Eondani i E. FLAVA Town. Common, July 13-26. I EuBRACHYMERA Townsend • ] E. DEBiLis Town. S. W. Harbor, July 15-20. j EuTRiXA Coquillett \ E. EXILE Coq. Salisbury Cove, Aug. 7, 1926. Parasitic on i May beetles. \ 200 BIOLOGICAL SURVEY OF SiPHOPHYTO Townsend S. FLORiDENSis Towii. Loiig Poiid ; Green Mt. ; Bar Harbor, June 16-Aug. 17. SiPHONA Meigen S. GENicuLATA De G. Bar Harbor; S. W. Harbor; N. E. Har- bor, June 9-Aug. 10. Blepharigena Kondani B. spiNULOSA Bigot. Salisbury Cove, July 23. Cyrtophloeba Eondani C. HORRiDA Coq. S. W. Harbor; N. E. Harbor, June 21- Aug. 11. VoRiA K.-Desvoidy (Plagiu Meigen) V. AMERICANA V.cl.W. Bar Harbor; Narrows, June 21- Aug. 11. Cylindromyia Meigen (Ocyptera Latreille) C. iNTERRUPTA Meig. (0. dosiades Walk.). Bar Harbor; Sal- isbury Cove, July 22-Sept. 11. Linnaemyia E.-Desvoidy L. HAEMORRHOiDALis Fall. (L. iHcta Meig.). Common, July 11-Sept. 6. BoNNETiA E.-Desvoidy B. coMTA Fall. Bar Harbor, July 19-Aug. 10. Ernestia E.-Desvoidy E. AMPELus Walk. Bar Harbor, June 23. E. ARCUATA Toth. Bar Harbor, June 7-21. E. NiGROPALPis Toth. Long Pond, Aug. 21. E. PLATYCARiNA Toth. N. E. Harbor (Minot) ; S. W. Harbor, Sept. 4-6. Gymnochaeta E.-Desvoidy G. viviDA Will. Bar Harbor, June 21. Nemorilla Eondani N. MACULOSA Meig. {pyste Walk.). Long Pond; Green Mt. ; S. W. Harbor, July 15-Aug. 21. THE MOUNT DESERT REGION 201 Zenillia ^.Desvoidj (Exorista auct.) Z. EUDRYAE Town. N. E. Harbor, July 13 (Minot). Z. HELviNA Coq. S. W. Harbor ; Salisbury Cove, Aug. 11-22. Z. (Phryxe) CAESAR Aldr. {E. nigripalpis Town.). Common, Aug. 13-Sept. 6. Z. (Phryxe) vulgaris Fall. Salisbury Cove; Witch Hole Pond, July 23-Sept. 11. Z. (Parexorista) affinis Fall. S. W. Harbor, June 16. Z. (Parexorista) cheloniae Bond, Salisbury Cove, July 12. Z. (Parexorista) confinis Fall. S. W. Harbor, Aug. 20. Z. (Eusisyropa) blanda 0. S. {E. hoarmiae Coq.) Green Mt. ; Salisbury Cove, July 6- Aug 17. Bred from Depres- saria infesting cow parsnip. Phorocera E.-Desvoidy P. COCCYX Aldr. & Webb.? Duck Brook, Sept. 11. DoRYPHOROPHAGA Townseiicl D. ABERRANs Towii. S. W. HarboT ; Bar Harbor, Sept. 6-13. A parasite of the potato beetle. D. DORYPHORAE Riley. S. W. Harbor, Sept. 6. Also parasitic on the potato beetle. AcHAETONEURA Brauer and Bergenstamm (Frontina auct.) A. ALETiAE Riley. Green Mt., July 25. A. FRENCHi Will. Bar Harbor, June 22. Myrsina R.-Desvoidy M. TENTHREDiNiDARUM Towu. Salisbury Cove ; S. W. Harbor, July 10-Sept. 6. Gymnocarcelia Townsend G. RiciNORUM Town. {Sturmia alhifrons Coq.). Salisbury Cove, July 19. Phrynofrontina Townsend P. DiscALis Town. S. W. Harbor; Long Pond, Aug. 20- Sept. 6. CoMPSiLURA Bouche C. coNciNNATA Mcig. Loug Poud, Aug. 21. PiLATEA Townsend P. uNicoLOR Smith. Common, June 20-Sept. 13. 202 BIOLOGICAL SURVEY OF WiNTHEMiA R.-Desvoidy W. QUADEiPusTULATA Fab. Commoii, July 16-Aiig. 17. Chaetotachina Brauer and Bergenstamm C. siMULANs Meig. {Tachina rustica of authors). Common, July 11-Aug. 23. Phobichaeta Rondani P. SEQUAX Will. Salisbury Cove, June 9. EuTRiCHOGENA Towiiseiid E. sETiPENNis Coq. S. W. Harbor; N. E. Harbor (Minot), July 15-26. GONIA Meigen G. FRONTOSA Say. Bar Harbor, June 11. G. (Cnephlogonia) distincta Smith. Common, July 15- Aug. 22. Spallanzania R.-Desvoidy S. HESPERiDARUM Will. Salisbury Cove, July 24. Peleteria R.-Desvoidy P. ANAXiAS Walk. (P. robust a of authors). N. E. Harbor; S. W. Harbor, Aug. 23-Sept. 6. P. CONFUSA Curr. Echo Lake; S. W. Harbor; Bar Harbor, July 12-Sept. 11. P. iTERANS Walk. (P. tessellata of authors). S. W. Harbor, Sept. 6. Archytas Jaennicke A. ANALis Fab. Bar Harbor ; S. W. Harbor, July 15-Sept. 6. A. ATERRiMA Desv. Bar Harbor; Echo Lake; S. W. Harbor, July 17-Sept. 6. Fabriciella Bezzi F. ALGENs Wied. Common, July 10-Sept. 7. F. DAKOTENSis var, oRiENTALis Towii. S. W. Harbor, June 20- Sept. 6. F. MONTANA Town. S. W. Harbor, June 20-July 15. Epalpus Rondani E. siGNiFERus Walk. Bar Harbor ; Echo Lake, June 9-July 19. THE MOUNT DESERT REGION 203 BoMBYLiOPSis Townsend B. ABRUPTA Wied. Bar Harbor; N. E. Harbor; S. W. Harbor, July 24-Sept. 6. JuRiNiA E.-Desvoidy J. DEciSA Walk. Echo Lake; S. W. Harbor; Bar Harbor, July 12-Sept. 11. Megaprosopidae MiCROPHTHALMA Macquart M. DisjuNCTA Wied. Witch Hole Pond, Sept. 11. M. MicHiGANENsis Towu. Salisbury Cove, Aug. 9. Dexiidae Ptilodexia Brauer aud Bergenstamm P. HARPASA Walk. Common, June 7-Aug. 14. The larva is parasitic on 'white grubs,' the larvae of the May beetles (Phyllophaga). Thelaira K.-Desvoidy T. NiGRiPEs Fab. Bar Harbor, June 23-Sept. 10. OcHROCERA Townsend 0. VAGINALIS Town. Bar Harbor, Aug. 10. Opsodexia Townsend 0. BicoLOR Coq. Witch Hole Pond, Sept. 11. Spathidexia Townsend S. CLEMONsi Town. Salisbury Cove, July 13. EsTHERiA R.-Desvoidy E. TIBIALIS Desv. Salisbury Cove (Sanford) ; S. W. Harbor, Aug. 7-Sept. 6. DiNERA E.-Desvoidy D. FUTiLis West. S. W. Harbor ; Long Pond ; Salisbury Cove, July 16-23. Sarcophagidae Brachycoma Eondani B. SARCOPHAGiNA Towii. S. W. Harbor ; Eagle Lake, June 21- July 18. Parasitic on the larvae in the nests of bumble bees. 204 BIOLOGICAL SURVEY OF Metopia Meigen M. LEUcocEPHALA Rossi. Long Pond ; S. W. Harbor, July 16- Aug. 22. M. CAMPESTRis Fall. N. E. Harbor; Long Pond, July 17- Aug. 21. Pachyophthalmus Braiier and Bergenstamm P. siGNATus Meig. Common, July 11-Aug. 13. Senotainia Macquart S. TRiLiNEATA V.d.Wulp. Salisbury Cove ; Sargent Mt., July 24-Aug. 8. WoHLFAHRTiA Brauer and Bergenstamm W. VIGIL Walk. Salisbury (Cove), July 24. Agria E.-Desvoidy A. AFFiNis Fall. Echo Lake, July 12. Helicobia Coquillett H. HELicis Town. S. W. Harbor, Sept. 8. Sarcophaga Meigen S. ATLANis Aldr. Salisbury Cove, July 18. S. BisETosA Park. S. W. Harbor; N. E. Harbor; Salisbury Cove, July 10-Aug. 9. S. ciMBicis Town. S. W. Harbor; N. E. Harbor; Bar Har- bor, June 21-July 19. S. FLETCHERi Aldr. Salisbury Cove, July 18. S. LATisTERNA Park. S. W. Harbor, Aug. 20-23. S. scoPARiA var. nearctica Park. S. W. Harbor ; Echo Lake ; Witch Hole Pond, June 21-Sept. 8. S. siNUATA Meig. Bar Harbor; Salisbury Cove; S. W. Har- bor, June 14— Sept. S. (Ravinia) communis Park. Salisbury Cove, June 9. S. (Ravinia) peniculata Park. Echo Lake; S. W. Harbor, June 17-Sept. 6. Calliphoridae Protocalliphora Hough P. sPLENDiDA form siALiA Shau. & Dobro. S. W. Harbor, June 26. The larva is parasitic on nestling birds. THE MOUNT DESERT REGION 205 Phormia R.-Desvoidy P. REGiNA Meig. Common, July 15-Sept. 11. Protophormia Townsend P. TERRAENOVAE Desv. Bar Harbor ; Salisbury Cove, July 22- Aug. 5. Cynomyia R.-Desvoidy C. CADAVERiNA Dgsv. S. W. Harbor ; Bar Harbor, June 22- July 15. Calliphora R.-Desvoidy. Blue-bottle flies C. voMiTORiA Linn. Jordan Pond; Newport Cove, June 10- July 11. C. VOMITORIA var. nigribarbis Slian. Common, July 11- Sept. 22. C. ERYTHROCEPHALA Meig. Bar Harbor ; Salisbury Cove, July 20-Sept. 9. LuciLiA R.-Desvoidy. Green-bottle flies ^<'^"T7^^ L. CAESAR Linn. Common, July 10-Sept. 22. /C;- ' ' /" L. SYLVARUM Meig. Bar Harbor, July 29- Aug. 15. L^ ^ -- .^ Poi.LENiA R.-Desvoidy. Cluster fly Laj L I S R A P V'X P. RUDis Fab. Common, June 17-Sept. 6. \5-^ ^- MUSCIDAE Stomoxys Geoffroy S. CALciTRANS Liuii. Biting house-fly. Bar Harbor; Salis- bury Cove, July 31-Aug. 10. Lyperosia Rondani L. iRRiTANS Linn. Horn fly. Bar Harbor; Salisbury Cove, July 25-30. MUSCINAE Musca Linnaeus M. DOMESTicA Linn. House fly. Not common, July 10- Sept. 22. Cryptolucilia Brauer and Bergenstamm C. CAESARioN Meig. S. W. Harbor ; Salisbury Cove ; Narrows, July 23-Sept. 12. 206 BIOLOGICAL SURVEY OF Pyrellia R.-Desvoidy P. SERENA Meig. Salisbury Cove, July 15. MoRELLiA R.-Desvoidy M. MicANs Macq. Common, June 9-Aug. 25. Graphomyia R.-Desvoidy G. MACULATA Scop. Commoii, July 10-Sept. 7. MusciNA R.-Desvoidy M. AssiMiLis Fall. Common, July 13-Sept. 10. M. STABULANS Fall. Stable fly. Common, July 8-Sept. 9. M. PAScuoRUM Meig. Salisbury Cove, Aug. 7 and 8, 1926. A European species first recorded from America in 1922 (see Psyche, vol. 30, pp. 1-5, 1923). Myiospila Rondani M. MEDiTABUNDA Fab. Eagle Lake, July 19. Anthomyiinae BiGOTOMYiA Malloch B. HouGHi Stein. Echo Lake; Bar Harbor, July 17- Aug. 17. Phaonia R.-Desvoidy P. APiCATA Johan. Common, July 12-Aug. 21. P. BYsiA Walk. Common, June 21-July 19. P. CAYUGAE Johan. (P. nigricans Johan, not Stein.). Bar Harbor; N. E. Harbor, July 14-Aug. 23. P. cuRViPES Stein. Eagle Lake ; Long Pond, July 18- Aug. 21. P. ERRANS Meig. Bar Harbor, July 26. P. ERRANS var. coMPLETA Mall. N. E. Harbor, June 26 ; Bar Harbor, Sept. 10. P. RUFiBASis Mall. Salisbury Cove, Aug. 6. P. SERVA Meig. Common, June 11-Sept. 10. P. FuscA Stein. S. W. Harbor, Sept. 6. Alloeostylus Schnabl A. DiAPHANus Wied. Common, June 15-Aug. 21. Dialyta Meigeu D. FLAViTiBiA Johan. Salisbury Cove ; Hadlock Pond ; S. W. Harbor, June 10-July 20. THE MOUNT DESERT REGION 207 Tricopticus Rondani T. iNNOCuus Zett. Echo Lake; S. W. Harbor, June 17- July 11. T. LATiPENNis Mall. S. W. Harbor, June 21, 1921. T. spiNiGER Stein. Echo Lake; S. W. Harbor, June 17- Aug. 23. PoGONOMYiA Rondani P. FLAViNERvis Mall. S. W. Harbor, June 22-24. Hydrotaea R.-Desvoidy H. ARMiPEs Fall. Salisbury Cove, July 24. H. CRisTATA Mall. Salisbury Cove, July 24. H. HOUGHi Mall. Bar Harbor, Sept. 9. H. MiLiTARis Meig. Common, June 17-Aug. 20. Ophyra R.-Desvoidy 0. LEucosTOMA Wied. Common, June 22- Aug. 22. Pannia R.-Desvoidy F. CANicuLARis Liuu. Little house fly. Common, June 20- Sept. 22. F. CARBONARiA Meig. Common, June 17-Sept. 5. F. DEPRESSA stein. S. W. Harbor, Aug. 22. F. FLAViBAsis stein. Duck Brook, July 30. F. ruscuLA Fall. Echo Lake; Bar Harbor, July 12-22. F. iNcissuRATA Zett. Bar Harbor; Salisbury Cove, July 19-24. F. KOWARzii Verr. Jordan Pond ; S. W. Harbor, June 10-18. F. MiNUTiPALPis Stein. S. W. Harbor ; Long Pond ; Bar Har- bor, June 16-Sept. 9. F. scALARis Zett. S. W. Harbor; Salisbury Cove, June 20- July 19. F. SERENA Fall. Echo Lake; S. W. Harbor; Eagle Lake, July 12-30. F. sociELLA Zett. S. AV. Harbor, July 30-Aug. 21. CoELOMYiA Haliday C. suBPELLucENs Zctt. S. W. Harbor, June 25-27. Platycoenosia Strobl P. MiKi Strobl. Bar Harbor, July 20. 208 BIOLOGICAL SURVEY OF AzELiA R.-Desvoidy A. ciLiPES Zett. Bar Harbor, Aug. 15. Hebecnema Schnabl H. AFFiNis Mall. Bar Harbor; Echo Lake, June 7-17. Mydaea R.-Desvoidy M. DisciMANA Mall. Common, June 13-July 15. M. HiRTivENTEis Mall. Eclio Lake; S. W. Harbor; Bar Har- bor, July 12-Aug. 16. M. occiDENTALis Mall. Bar Harbor; N. E. Harbor, June 7- Aug. 15. M. PAGANA Fab. Bar Harbor, June 7. M. URBANA Meig. Bar Harbor; N. PI Harbor, July 17-22. Helina R.-Desvoidy H. BREvis Stein. S. W. Harbor, July 13. H. JOHNSONI Mall. S. W. Harbor, June 8. H. LucoRUM Fall. Common, June 8-Aug. 21. H. LYsiNOE Walk. Bar Harbor, Sept. 9-11. H. MARMORATA Zett. Commoii, June 16-July 27. H. MULTisETosA Schuabl. Bar Harbor ; Long Pond, Sept. 4—7. H. NIGRICANS Stein. Bar Harbor, June 21. H. PECTiNATA Johan. (H. mimetica Mall.). Common, June 7- July 22. Spilogona Schnabl S. AEREA Fall. S. W. Harbor, June 21. S. ALTicoLA Mall. Bar Harbor, June 7. S. CAROLi Mall. Duck Brook ; Green Mt. ; Echo Lake, June 13- July 17. S. CLivicoLA Mall. Echo Lake ; S. W. Harbor, June 17-20. S. susPECTA Mall. Bar Harbor ; Echo Lake, June 15-17. S. TETRACHAETA Mall. Duck Brook ; Bar Harbor, June 15- July 30. Paralimnophora Malloch P. VELUTINA Mall. Bar Harbor; S. W. Harbor; Salisbury Cove, June 17- July 15. LiMNOSPiLA Schnabl L. ALBiFRONs Zett. Salisbury Cove ; Narrows ; S. W. Harbor, July 25-Aug. 23. THE MOUNT DESERT REGION 209 Phyllogaster Stein P. coRDYLUROiDEs Steiii. Salisbury Cove; Narrows, July 24-27. Tetramerinx Berg T. UNICA Stein. Narrows, Aug. 13. LispOCEPHALA Pokorny L. ALMA Meig. S. W. Harbor, Sept. 6. L. ALMA var. PALLiPALPis Zctt. Echo Lake ; Eagle Lake, July 12-18. L. ERYTHROCERA Desv. Commoii, July 12-Aug. 23. LisPA Latreille L. ALBiTARSis Stelii. Common, June 13-Sept. 13. L. joHNsoNi Aldr. Newport Cove ; Great Head, Sept. 13. L. sociABiLis Loew. Witch Hole Pond, June 13. L. TENTACULATA De G. Witch Hole Pond; S. W. Harbor; Newport Cove, June 13-Sept. 13. L. uLiGiNosA Fall. Bar Harbor, June 13-Aug. 29. FuciLLiA K.-Desvoidy F. MARiTiMA Halid. Kelp fly. Common, June 20-July 15. Anthomyia Meigen A. PLuviALis Linn. Common, June 21-July 17. Pegomyia E.-Desvoidy P. AFFiNis Stein. (P. vicina St., not Lint.). N. E. Harbor, Sept. 24 (Minot). P. BicoLOR Wied. Common, June 21-July 20. P. CALYPTERATA Zett. Eclio Lake, June 17. P. coNNEXA Stein. (P. emmesia Mall.). Echo Lake; Long Pond, June 17-Aug. 26. P. DissECTA Meig. Salisbury Cove, July 24. P. FuscoFASCiATA Mall. Bar Harbor; Echo Lake, June 13- Sept. 7. P. GENicuLATA Bouchc. Bar Harbor; Echo Lake, June 7- July 12. P. HYOSCYAMI Panz. (P. vicma Lint.). Common, June 7- Julv 3. The larva mines the leaves of beets and dock. 210 BIOLOGICAL SURVEY OF P. JUVENILIS Stein. Eagle Lake; Witch Hole Pond, July 18-30. P. LiTTORALis Mall. Long Pond; Bar Harbor; Green Mt., July 16-24. P. LUTEOLA Mall. Echo Lake ; Bar Harbor, July 12-Sept. 7. P. viTTiGERA Zett. Common, July 17-30. P. wiNTHEMi Meig. Bar Harbor; S. W, Harbor, July 30- Sept. 8. Hydrophoria E.-Desvoirly H. PROXiMA Mall. Witch Hole Pond; Salisbury Cove, June 13-July 18. H. DivisA Meig. Salisbury Cove, July 14. H. uNiFORMis Mall. Salisbury Cove, Aug. 11. H. (Acroptena) ambigua Fall. Bar Harbor; Echo Lake, June 14-July 20. EuSTALOMYiA Kowarz E. BRiziA Walk. N. E. Harbor, July 16 (Minot). Hylemyia K.-Desvoidy H. ALCATHOE Walk. Bar Harbor; S. W. Harbor, June 13-21. H. ANTiQUA Meig. ^ Onion maggot.' Echo Lake, June 17. H. BRASsiCAE Bouche. 'Cabbage maggot.' S. W. Harbor, July 13. H. coENosiAEFORMis Stciii. Commoii, June 17-Aug. 18. H. DEPRESSA stein. S. W. Harbor; Salisbury Cove, June 16- July 24. H. iNNocuA Mall. Echo Lake ; Eagle Lake ; Bar Harbor, July 12-Aug. 16. H. iNORNATA Stein. Common, June 18-July 10. H. LATiPENNis Zett. Common, June 10-July 27. H. PLuviALis Mall. S. W. Harbor, July 13. H. TRiviTTATA Stciu. {H . longicaucla Mall.). Common, July 15-29. Subgenus Chortophila Macquart H. ciLicRURA Bond, {fusciceps auct.). Common, June 7- Aug. 14. H. LAEVis Stein. Bar Harbor, Aug. 10. H. TRicHODACTYLA Roud. S. W. Harbor ; Bar Harbor, July 11-19. THE MOUNT DESERT EEGION 211 Paregle Schnabl and Dziedzicki P. AESTivA Meig. S. W. Harbor, July 11. P. ciNERELLA Fall. Eclio Lake; Salisbury Cove, July 12-25. P. EADicuM Linn. Salisbury Cove, July 24. POGONOMYZA Schnabl and Dziedzicki Referred to Pycnoglossa Coq. in error in List New England Diptera. P. FLAViPENNis Fall. Witcli Hole Pond; S. W. Harbor, June 13-July 30. P. PEOBOsciDALis Mall. Echo Lake, July 12. Prosalpia Pokorny P. ANGusTiTARsis Mall. Comuion, July 12-25. P. siLVESTRis Fall. S. W. Harbor; Bar Harbor, July 16- 21. Hylephila Eondani (Hammomyia auct.) H. MARYLANDiCA Mall. S. W. Harbor ; Echo Lake, June 16-17. Macrorchis Eondani M. AUsoBA Walk. Bar Harbor, July 3. CoENOSiA Meigen C. COMPRESSA Stein. Bar Harbor; Eagle Lake, July 18-20. C. FusciFRONS Mall. Bar Harbor, Aug. 10-29. C. HUMiLis Meig. Bar Harbor; N. E. Harbor, June 21- Sept. 4. C. LATA Walk. S. W. Harbor, Aug. 23. C. NiGRESCENs Steiu. S. W. Harbor; Tremont ; Echo Lake, June 30-Sept. 7. C. NUDisETA Loew. Bar Harbor, Sept. 11. Macrocoenosia Malloch M. TRisETA Stein. Common, June 7-July 30. Hoplogaster Eondani H. NiGRiTARsis Steiu. Common, July 18-30. ScHOENOMYZA Halidav S. CHRYsosTOMA Loew. Commou, June 8-Aug. 13. S. DORSALis Loew. S. W. Harbor, June 16. S. LiTTORELLA Zett. Salisbury Cove; Bar Harbor, July 12- Sept. 13. 212 BIOLOGICAL SURVEY OF SCATOPHAGIDAE CoRDiLURA Fallen C. CAEBONARiA AYalk. Echo Lake, June 17. C. NANA Loew. Common, June 26-July 24. C. SETOSA Loew. Echo Lake, June 17-July 17. C. TRiciNGTA Loew. Duck Brook; Bar Harbor; Salisbury Cove, June 13-July 6. C. VARIABILIS Loew. Upper Hadlock Pond; Seal Cove, June 17-20. Orthacheta Becker {Orthochneta auct.) 0. coRNUTA Loew. Duck Brook, June 13. Parallelomma Becker P. DiMiDiATA Cress. Bar Harbor, June 7. P. PLEURiTicA Loew. Upper Hadlock Pond; Bar Harbor, June 10-13. P. GRAciLiPES Loew. Bar Harbor, July 10. Americina Malloch A. ADUSTA Loew. Bar Harbor, July 29. A. iNERMis Loew. Bar Harbor, July 24. ACHAETELLA Malloch A. vARiPES Walk. Salisbury Cove; Bar Harbor, July 15- Aug. 9. Amaurosoma Becker A. BRUNNEicosTA Jolius. Echo Lake, June 27. Trichopalpus Kondani T. PALPALis Coq. Narrows; Salisbury Cove; Newport Cove, July 11-29. T. puNCTiPES Meig. Salisbury Cove; Newport Cove, July 11-15. Scatophaga Meigen S. STERCORARiA Liuu. Commou, June 20-July 26. S. MERDARiA Fab. S. W. Harbor, July 18. S. LiTOREA Fall. Narrows, July 27-Sept. 12. S. FURCATA Say. Bar Harbor; N. E. Harbor (Minot), June 8- Julv 16. THE MOUNT DESERT REGION 213 S. LUTARiA Fall. Green Mt., July 25. S. suiLLA Fab. Bar Harbor; Echo Lake; Green Mt., June 8- July 25. Ceratinostoma Mead C. osTioRUM Halid. Common, June 9-July 27. EUGENACEPHALA JohnSOll E. SALSA Johns. Narrows; S. W. Harbor, Aug. 13-26 (Alexander). Hydromyza Fallen H. coNFLUENs Loew. Bar Harbor, July 24. On lily pads. Helomyzidae SuiLLiA E.-Desvoidy (Helomyza auct.) S. APicALis Loew. S. W. Harbor; Long Pond; Echo Lake, July 15-Sept. 7. S. LONGiPENNis Loew. Eclio Lake, July 17. S. PLUMATA Loew. Bar Harbor, July 20. Tephrochlamys Loew T. CANESCENs Mclg. Bar Harbor; N. E. Harbor, June 14- Aug. 20. Allophylla Loew A. LAEvis Loew. Common, June 11-Sept. 7. SCOLIOCENTRA LoeW S. HELvoLA Loew. Echo Lake; N. E. Harbor; Bar Harbor, July 12-Sept. 11. Neoleria Malloch N. DISCOLOR Loew. Bar Harbor, June 21-23. N. LEucosTOMA Loew. Bar Harbor; Echo Lake, June 21- Sept. 11. Clusiidae Clusia Haliday C. czERNYi Johns. N. E. Harbor (Minot), July 1-25. C. LATERALIS Walk. N. E. Harbor (Minot), July 4. Clusiodes Coquillett C. AMERICANA Mall. Grccn Mt., July 25. C. (Clusiaria) orbitalis Mall. Bar Harbor, June 13, 1921. Type locality. 214 BIOLOGICAL SURVEY OF C. (Columbiella) johnsoni Mall. Echo Lake, July 12. Type locality. C. (Columbiella) nigripalpis Mall. Bar Harbor, June 17. BORBORIDAE Leptocera Olivier L. (Collinella) lutosa Stenh. Bar Harbor, Aug. 10. L. (Scatophilella) carinata Spul. Bar Harbor, Aug. 15, BoRBORUS Meigen B. EQUiNus Fall. Bar Harbor; S. W. Harbor, June 22- July 11. SCIOMYZIDAE Neuroctena Eoudani N. ANiLis Fall. Common, July 10-25. N. SIMPLEX Loew. Common, July 12-30. Dryomyza Fallen D. DAYi Cress. Echo Lake, July 12. D. FERRUGiXEA Mel. Bar Harbor, June 13. SciOMYZA Fallen S. ARisTALis Coq. Eagle Lake, July 18. ■ Atrichomelina Cresson A. puBERA Loew. Bar Harbor, June 11. Pherbellia K.-Desvoidy P. ALBovARiA Coq. Wltch Hole Pond; Bar Harbor, Aug. 18. P. GRisEscENs Meig. Bar Harbor, Aug. 10. P. NANA Fall. S. W. Harbor, June 20. P. TENuiPES Loew. Long Pond, June 20. P. viTALis Cress. Sand Beach, Great Head, July 11. Trypetoptera Hendel T. CANADENSIS Macq. {T. pallida Loew). Eagle Lake, July 18. HOPLODICTYA Cresson H. SETOSA Coq. Narrows, July 27-Aug. 13. THE MOUNT DESERT REGION 215 DiCTYA Meigen D. UMBRARUM Liiiii. Bar Harbor, July 20. LiMNiA E.-Desvoidy L. Boscii Desv. Common, July 17-Aug. 11. L. BOSCH var. sparsa Loew. Common, June 13-July 30. L. cosTALis Loew. Eagle Lake, July 18. L. SARATOGENsis Fitcli. Commou, June 15-Sept. 13. Tetanoceba Dumeril T. CLARA Loew. Duck Brook ; Bar Harbor, Aug. 18. T. VALiDA Loew. Common, July 16-Aug. 7. T. viciNA Macq. S. W. Harbor; Salisbury Cove, July 11- Aug. 11. T. TRIANGULARIS Locw. Wltch Hole Pond; Salisbury Cove, July 30-Aug. 7. T. PLEBEiA Loew. Common, July 2-24. T. ELATA Fab. Narrows, July 27. T. ROTUNDicoRNis Loew. S. W. Harbor, July 15. T. UNicoLOR Loew. S. W. Harbor; Bar Harbor, July 15- Aug. 10. Elgiva Meigeu E. LiNEATA Fall. Salisbury Cove, July 8-24 (Sanford). Com- mon in meadow south of the town, Aug. 7-11. Sepedon Latreille S. pusiLLus Loew. Upper Hadlock Pond ; Bar Harbor, June 10-Aug. 18. Sapromyzidae Lauxania Latreille L. cYLiNDRicoRNis Fab. Common, June 26-July 30. Minettia E.-Desvoidy M. AMERICANA Mall. {M . lofigipennis auct.). Bar Harbor, June 15. M. LUPULiNA Fab. Common, June 26-July 21. M. OBSCURA Loew. S. W. Harbor, July 13. 216 BIOLOGICAL SURVEY OF Sapromyza Fallen S. ANNULATA Mel. Bar Harbor; Echo Lake; S. W. Harbor, June 15- July 12. S. BRACHYSOMA Coq. Bar Harbor, June 8. S. oBTusiLAMELLATA Mall. Bar Harbor, June 7. S. QUADRiLiNEATA Loew. Bar Harbor, July 22. S. ROTUNDicoRNis Loew. Echo Lake; Bar Harbor; N. E. Harbor, July 17-Aug. 11. S. SERRATA Mall. Bar Harbor, June 11. Sapromyzosoma Malloch S. ciTRiFRONS Mall. Bar Harbor; Long Pond, June 13- Aug. 21. S. coMPEDiTA Loew. N. E. Harbor; S. W. Harbor; Bar Har- bor, July 6-30. S. DECEPTOR Mall. Sand Beach, Great Head; Long Pond, July 13-16. S. DisjuNCTA Johns. Common, June 13-July 12. S. FRATERNA Loew. Grecu Mt., Aug. 17. S. FRONTALIS Loew. N. E. Harbor (Minot) ; Bar Harbor, July 1-11. S. iNCERTA Mall. Bar Harbor (McAtee) ; Long Pond, July 30- Aug. 21. S. PHiLADELPHicA Macq. N. E. Harbor (Minot) ; Bar Harbor, July 1-Aug. 10. S. SHELDONi Coq. Witch Hole Pond, July 30. LONCHAEIDAE LoNCHAEA Fallen L. AFFiNis Mall. S. W. Harbor; Echo Lake; Bar Harbor, June 13-July 20. L. ALBicEPs Mall. Bar Harbor; N. E. Harbor, July 20- Aug. 10. L. ANGusTiTARSis Mall. Eclio Lake, July 12. L. NiGROciLiATA Mall. S. W. Harbor, July 11. L. LATicoRNis Meig. Bar Harbor, Aug. 10. L. POLiTA Say. Salisbury Cove, June 9. L. VAGINALIS Fall. Bar Harbor, June 11. THE MOUNT DESERT REGION 217 Pallopteredae Palloptera Fallen P. suBARcuATA Johiis. N. E. Hai'bor (Minot) ; Bar Harbor, July 1-Aug. 13. P. supERBA Loew. N. E. Harbor, June 26 (Minot). Ortalidae RiVELLiA R.-Desvoidy R. viridulans Desv. Salisbury Cove, July 13-Aug. 9. Tephronota Loew T. NARYTiA Walk. Sand Beach, Great Head ; Salisbury Cove, July 11-18. PSEUDOTEPHRITIS JolmsOU P. VAU var. coNJUNCTA Johns. Bar Harbor, Aug. 10. PSAIROPTERA Wohlberg P. NUBECULA Johns. N. E. Harbor, July 6 (Minot). Chaetopsis Loew C. AENEA Wied. Common on the salt marshes; Narrows, June 9- July 27. C. APiCALis var. duplicata Johns. Common on the salt marshes ; Narrows, June 9-July 27. C. massyla Walk. Common on the 'Great Heath' and fresh- water meadows, July 15-Sept. 11. C. FULviFRONs Macq. Bar Harbor, Aug. 10-16. Seiopteba Kirby S. viBRANs Linn. Jordan Pond, July 10. S. DUBiosA Johns. N. E. Harbor, July 16 (Minot). TRYPETroAE ZoNOSEMA Loew Z. FLAvoNOTATA Macq. N. E. Harbor, Aug. 10 (Minot). AciURA R.-Desvoidy A. NiGRicoRNis Doane. Long Pond ; Salisbury Cove, June 20- July 18. Rhagoletis Loew R. FAUSTA 0. S. Bar Harbor, June 11. The larvae infest cherries. 218 BIOLOGICAL SURVEY OF Terellia R.-Desvoidy T. FLORESCENTiAE Liini. Common, July 14-Aug. 13. The larvae live in the flower buds of the Canada thistle {Cirsium arvense). Neaspilota Osten Sacken N. ACHiLLEAE Johus. Salisbury Cove ; S. W. Harbor, July 24- 28. Frequents the flow buds of yarrow {Achillea millefolium). EuTRETA Loew E. SPARSA Wied. Bar Harbor, Aug. 15. The larvae form root-galls on goldenrod. EuROSTA Loew E. ASTERis Harr. {E. solidaginis Fitch). Salisbury Cove. The larvae form round galls on the stalks of goldenrod. E. LATiFRONs Loew. Eagle Lake, July 19. EuARESTA Loew E. ANGusTiPENNis Loew. Bar Harbor, June 7. E. BELLA Loew. Salisbury Cove, July 14-24. E. PURA Loew. Salisbury Cove, July 13-14. Tephritis Latreille T. ALBicEPS Loew. Common, July 11-Aug. 13. MiCROPEZIDAE Calobata Meigen C. PALLiPES Say. Salisbury Cove, July 14. C. UNiviTTA Walk. Bar Harbor, June 15-July 14. Tanypeza Fallen T. LUTEiPENNis Kuab & Shan. Bar Harbor; N. E. Harbor (Minot) ; Echo Lake, June 7- July 24. Sepsidae Sepsis Fallen S. siGNiFERA Mel. & Spul. Bar Harbor, July 30. S. SIGNIFERA var. cuRviTiBiA Mel. & Spul. Bar Harbor, July 17. S. vioLACEA Meig. Echo Lake, June 17. THE MOUNT DESERT REGION 219 Meroplius Rondani M. STERCORARius Desv. S. W. Harbor, July 13. Nemopodia R.-Desvoidy N. CYLiNDEiCA Fab. S. W. Harbor; Salisbury Cove; Duck Brook, July 10-30. Themira R.-Desvoidy T. MINOR Haliday. S. W. Harbor; Narrows, June 28- Aug. 30. T. PUTRis Linn. S. W. Harbor, July 10-13. Saltella R.-Desvoidy S. scuTELLARis Fall. Narrows, Aug. 13. PlOPHIIJDAE PioPHiLA Fallen P. CASEi Linn. Cheese-maggot fly. Bar Harbor; Salisbury Cove, June 7-July 25. P. NiGRicEPs Meig. Bar Harbor; S. W. Harbor, June 8- July 11. P. ORiENs Mel. & Spul. Bar Harbor, June 22. Mycetaulus Loew M. puLCHELLus Baiiks. Bar Harbor, Sept. 10-11. PSILIDAE Loxocera Meigen L. coLLARis Loew. Flying Mt. ; Echo Lake, Aug. 26-29 (Alexander). L. CYLiNDRicA var. PLEURiTiCA Loew. Echo Lake ; Long Pond ; Witch Hole Pond, June 17-July 30. PsEUDOPSiLA Johnson p. COLLARIS Loew. Upper Hadlock Pond ; Bar Harbor, June 11-Sept. 11. P. FALLAX Loew. Bar Harbor; Long Pond; S. W. Harbor, Aug. 16-22. P. PERPOLiTA Johns. Duck Brook; Sand Beach near Great Head, Sept. 11-13. 220 BIOLOGICAL SURVEY OF PsiLA Meigen P. BicoLOR Meig. Bar Harbor; S. W. Harbor, July 17-22. P. LEVIS Loew. Bar Harbor ; S. W. Harbor, June 11-21. P. LONGULA Johns. Eclio Lake; Bar Harbor; Green Mt., July 17-25. NOTIPHILIDAE Clanoneurum Becker C. ciMiciFORMis Halid. Marsh at the Narrows, Aug. 15, 1920. PsiLOPA Fallen P. ATRiMANA Loew. Bar Harbor, July 24; S. W. Harbor, Sept. 6. P. LEucosTOMA Meig. Narrows, July 27. Trimerina Macquart T. MADiZANs Fall. Bar Harbor, Aug. 16. Ehysophora Cresson R. ROBusTA Cress. Witch Hole Pond, July 30. Ditrichophora Cresson D. ExiGUA Cress. Bar Harbor, July 22, 1919. D. PARiLis Cress. Bar Harbor, Aug. 18. DiscocERiNA Macquart D. LEUCOPROCTA Loew. Narrows, June 9. Hydrellia K.-Desvoidy H. FORMOSA Loew. Bar Harbor, Aug. 12-16. H. oBscuRiPEs Loew. Bar Harbor, Aug. 16. H. scAPULARis Loew. Narrows, July 27-Aug. 13. H. TIBIALIS Cress. Bar Harbor, Aug. 10. H. VALiDA Loew. Narrows, July 27-Aug. 13. Ilythea Haliday I. spiLOTA Curtis. Common, June 27-Aug. 21. Notiphila Fallen N. LOEwi Cress. {N. unicolor Loew, not Walker). Bar Har- bor, June 22. N. viTTATA Loew. Bar Harbor, Julv 20-26. THE MOUNT DESERT REGION 221 N. ATRiPEs Cress. Narrows, Aug. 13. N. BispiNosA Cress. Narrows, July 27-Aug. 13. N. oLivACEA Cress. Bar Harbor, July 26. DiCHAETA Meigen D. CAUDATA Fall. Witch Hole Pond, June 13. Philygria Stenhammer P. DEBiLis Loew. Green Mt. ; Long Pond, July 25-Sept. 7. Ephydridae Lytogasteb Becker L. GRAVIDA Loew. Bar Harbor, July 24. Napaea E.-Desvoidy N. ALPiNA Cress. Long Pond ; Bar Harbor, July 16-Aug. 10. N. iMiTANS Loew. Narrows, Sept. 12. N. VARIA Loew. Duck Brook ; Bar Harbor, Aug. 18. Parydra stenhammer P. BiTUBERCULATA Loew. Bar Harbor, Aug. 10. P. QUADRiTUBERcuLATA Loew. Bar Harbor, July 20. OcHTHERA Latreille 0. MANTIS De G. Bar Harbor, July 26. Brachydeutera Loew B. ARGENTATA Walk. S. W. Harbor, June 24. Ephydra Fallen E. suBOPACA Loew. Narrows, Aug. 13. CiRRULA Cresson C. GiGANTEA Cress. Narrows, Aug. 13-Sept. 12. Dimecoenia Cresson D. spiNosA Loew. * Narrows,' Aug. 13-Sept. 12. SCATELLA K.-Desvoidy S. LUGENs Loew. Bar Harbor, June 11; S. W. Harbor, July 13. S. STENHAMMER! Zett. Eclio Lake, June 17; S. W. Harbor, July 11. 222 BIOLOGICAL SURVEY OF ScATOPHiLA Becker S. VARIABILIS Cress. S. W. Harbor, Aug. 20. Chloropidae Meromyza Meigen M. AMERICANA Fitcli. Eclio Lake ; Salisbury Cove, July 12-18. M. FLAViPALPis Mall. S. W. Harbor, Sept. 8. Cetema Hendel (Center Loew) C. suBviTTATA Loew. Wltcli Hole Pond ; Bar Harbor, July 30. Epichlorops Becker E. ExiLis Coq. Salisbury Cove, July 15. Chlobopisca Loew C. GLABRA Meig. {C. assimilis Macq.). S. W. Harbor, July 14. C. GRATA Loew. S. W. Harbor ; Bar Harbor, July 11-22. C. RUFESCENs Coq. Salisbury Cove, July 18. C. VARicEPS Loew. Salisbury Cove ; Narrows, Aug. 13-25. Diplotoxa Loew D. VERSICOLOR Loew. Common, July 17-Aug. 23. Anthracophaga Loew A. sANGuiNOLENTA Loew. Bar Harbor ; S. W. Harbor, June 8 July 14. Chlorops Meigen C. MELANOCERA Locw. S. W. Harbor, July 13. C. oBscuRicoRNis Loew. Narrows, June 9-Aug. 13. C. PROxiMA Say. Common, June 17-July 14. C. scABRA Coq. Tremont, Aug. 23. C. suBNiGRA Coq. S. W. Harbor; Salisbury Cove; Bar Har- bor, July 11-Aug. 12. Parectecephala Becker P. EUCERA Loew. Common, June 9-Aug. 21. EcTECEPHALA Macquart E. siMiLis Beck. Bar Harbor, Julv 21. THE MOUNT DESERT REGION 223 Gaurax Loew G. DOREi Johns. Long Pond ; Bar Harbor, June 15-27. G. iNTERRUPTA Mall. Long Pond, July 16. G. EPHippiuM Zett. Bar Harbor, Aug. 10. Cbassiseta vou Eoser C. NiGRicEPS Loew. Common, July 27-Aug. 16. Bred from cow parsnip bored by Depressaria heracliana. C. cosTATA Loew. Salisbury Cove, July 15-30. Melanochaeta Bezzi M. DECiPiENs Loew. Common, June 7-Aug. 10. M. EUNOTA Loew. 'Mt. Desert,' July 30 (McAtee). M. LONGULA Loew. S. W. Harbor ; Salisbury Cove ; Bar Har- bor, July 14-Aug. 18. M. FLANicoLLis Beck. Witch Hole Pond, Aug. 18. HiPPELATES Loew H. FLAViPEs Loew. S. W. Harbor, July 19. Madiza Fallen (Siphonclla Macquart) M. NEGLECTA Bcck. 'Mt. Descrt,' July 30 (McAtee). M. NiGRiPALPis Mall. Tremont; S. W. Harbor; Bar Harbor, Aug. 23-Sept. 9. M, osciNiNA Fall. S. W. Harbor ; Green Mt. ; Salisbury Cove, July 17-Aug. 26. M. SETULOSA Mall. 'Mt. Desert,' July 30. BoTANOBiA Lioy (Oscinis auct.) B. coxENDix Fitch. Common, July 16-27. B. FRIT Linn, Frit fly. Narrows, July 27. B. FRIT var. pusiLLA Meig. Narrows, July 14. B. iNFESTA Beck. Common, July 27-Aug. 14. B. NiTiDissiMA Meig. (0. variabilis Loew). S. W. Harbor, July 13. B. NUDiuscuLus Loew. 'Mt. Desert,' July 21 (McAtee). B. TRiGRAMMA Locw. Narrows ; Tremont; Salisbury Cove, Aug. 13-23. 224 BIOLOGICAL SURVEY OF Drosophilidae Amiota Loew (Pliortica Scliiner) A. HUMERALis LoGW. Greeii Mt. ; Bar Harbor, July 25- Aug. 16. A. LEucosTOMA LoGW. Upper Hadlock Pond; Bar Harbor; Echo Lake, June 10-July 17. A. MINOR Mall. Bar Harbor; Witch Hole Pond, June 16- Aug. 18. Stegana Meigen S. coLEOPTRATA Scop. Duck Brook ; N. E. Harbor ; Echo Lake, June 13-Aug. 17. Chymomyza Czerny C. AMOENA Loew. Salisbury Cove, July 18. Drosophila Fallen D. FUNEBRis Fab. N. E. Harbor, Aug. 29 (Minot) ; Echo Lake, Sept. 7. D. TRANSVERSA Fall. Common, July 17-Aug. 24. D. MELANOGASTER Mcig. Robiuson Mt., Sept. 7. Scaptomyza Hardy S. GRAMiNUM Fall. Narrows ; S. W. Harbor, July 13-Sept. 6. ASTEIIDAE AsTEiA Meigen A. BEATA Aldr. S. W. Harbor, July 13, 1919. Geomyzidae DiASTATA Meigen D. REPLETA Walk. {D. pulchra Loew). Salisbury Cove, July 18. D. VAGANs Loew. Salisbury Cove; Bar Harbor, July 14- Sept. 9. Cyamops Melander C. NEBULOSA Mel. Salisbury Cove, July 13, 1923. Anthomyza Fallen A. GRACILIS Fall. Echo Lake ; S. W. Harbor, July 12-Aug. 27. A. TENUIS Loew. Common, July 12-Aug. 13. A. VARiEGATA Locw. N. E. Hai'bor ; Bar Harbor, July 27- Aug. 12. THE MOUNT DESERT REGION 225 MuMETOPiA Melander M. TERMiNALis LoGW. Bar Harbor; S. W. Harbor; Echo Lake, June 8-Sept. 3. Pelomyia Williston P. MALLOCHi Stiirt. Narrows, June 9. Chiromyia E.-Desvoidy C. FLAVA Linn. 'Mt. Desert,' July 28 (McAtee). MiLICHIIDAE Pholeomyia Bilimek P. iNDECORA Loew. S, W. Harbor; Salisbury Cove, July 10-25. MiLiCHiELLA Giglio-Tos M. ARCUATA Loew. S. W. Harbor ; Salisbury Cove, July 13-15. EusiPHONA Coquillett E. MiRA Coq. Salisbury Cove, July 15-Aug. 7. P ARAM VIA Williston P. NiTENs Loew. 'Mt. Desert,' July 30. On flowers of Spiraea (McAtee). Phyllomyza Fallen P. sEcuRicoRNis Fall. S. W. Harbor, Aug. 26 (Alexander). Desmometopa Loew D. LATiPEs Meig. Bar Harbor; S. W. Harbor; Salisbury Cove, July 24-Sept. 6. D. soRDiDUM Fall. Salisbury Cove, July 14. Mallochiella Melander M. GLABRA Fall. Bar Harbor ; S. W. Harbor ; Salisbury Cove, July 24-Aug. 20. Meoneura Eondani M. VAGANs Fall. Bar Harbor, June 7. OCHTHIPHHJDAE OcHTHiPHiLA Fallen 0. ARiDELLA Fall. Saud Beach, Great Head; Long Pond, July 11-21. 226 BIOLOGICAL SURVEY OF 0. JUNCORUM Fall. Upper Hadlock Pond; Salisbury Cove, June 10- July 15. 0. poLYSTiGMA Meig. Salisbury Cove; Tremont, July 14- Aug. 23. Chamaemyia Panzer C. ELEGANs Panz. Salisbury Cove, July 13, 15. Leucopis Meigen L. NiGRicoRNis Egger. Common, June 10-Aug. 13. Agromyzidae Agromyza Fallen A. AENEivEXTRis Fall. Bar Harbor, June 7. A. ARTEMisiAE Kalt. {platyptera Tliom.). S. W. Harbor; Seal Cove; Bar Harbor, July 11- Aug. 8. The larvae mine the leaves of a large number of plants. A. ATRATA Meig. {angulata Loew). Bar Harbor, July 11. A. GENUALis Mel. [coloradensis Mall.). 'Great Heath'; S. W. Harbor, July 15. A. LATERALIS Macq. {coquilletti Mall.). Echo Lake; Salisbury Cove, July 12-24. A. MELAMPYGA Locw {flaviventris Johns.). S. W. Harbor, July 13. The larvae mine the leaves of plantain. A. MOROSA Meig. {magnicornis Loew; luterella Zett.). Bar Harbor; S. W. Harbor, June 7-Aug. 20. The larvae form swellings in the stems of the iris. A. NASUTA Mel. {madizina Hend.). 'Mt. Desert,' July 30 (McAtee). A. PARVicoRNis Loew. S. W. Harbor; Narrows, July 10-27. A. posTiCATA Meig. {termmalis Coq.). Common, June 8- July 30. The larvae mine the leaves of asters and golden- rods. A. pusiLLA Meig. {trifolii Burg.). S. W. Harbor; Echo Lake; Seal Cove, July 13-Sept. 8. The larvae mine the leaves of various Cruciferae, Compositae, Leguminosae, etc. A. vARiATA Mall. Narrows, July 27. A. viRiDULA Coq. Green Mt., Aug. 17. THE MOUNT DESERT REGION 227 Napomyza Halidaj N. LATERALIS Fall. Eclio Lake, July 17. Phytomyza Fallen P. ALBicEPS Meig. (P. bipuncfafa Loew). Mt. Desert, July 30 (McAtee). P. AQuiLEGiAE Hardy. Columbine leaf -miner. S. W. Harbor, June. The larvae mine the leaves of the columbine. P. ATRicoRNis Meig. (P. chrysanthemi Kowarz). Margarite fly. Bar Harbor, July 19. The larvae mine the leaves of chrysanthemum and margarite. P. iLicicoLA Loew. Holly leaf-miner. S. W. Harbor; Echo Lake, July 14-17. PUPIPAEA HiPPOBOSCIDAE Ornithoica Eondani 0. coNFLUENTA Say. Frequents sparrows, owls, etc. Obnithomyia Latreille 0. ANCHiNEURA Spciscr (0. pallida Say). Bar Harbor, July (Moore). Frequents song and chipping sparrows, junco, robin, etc. Ornithoponus Aldrich 0. AMERiCANus Lcacli. Frcqueiits great horned owl, red- shouldered hawk, ruif ed grouse, etc. INDEX TO GENERA AND SUBGENERA Abrostola 77 Acasis 61 Achaetella 212 Achaetoneura 201 Acidalia 60 Acilius 94 Aciura 217 Acoptus 120 Acrobasis 59 Acroneuria 23 Acronyeta 7-i Acroptena 210 Acroricnus 140 Acrydiiim 23 Actia 198 Actina 178 Actornithophilus 29 Acucephalus 35 Acyphona 163 Adalia 107 Adelphocoris 44 Adelphomyia 164 Adoxus 115 Aedes 168 Aellopos 83 Aeshna 25 Agabus 94 Agallia 34 Agathis 129 Agathomyia 189 Ageniella 153 Aglais 87 Agiiopteryx 52 Agria 204 Agrilus 103 Agrion 24 Agriopodes 74 Agriotes lOl Agromyza 226 Agroperina 74 Agrotis 70 Aldrovandiella 177 Aleiodes 130 Aleochara 97 Alexeter 133 Allandrus 117 Allantus 124 Allocotocera 175 Allodia 176 Alloeostylus 206 AUognosta 178 AUograpta 193 Allonoiiyma 53 Alloperla 23 Allophylla 213 Alydus 47 Alyson 156 Amalopina 165 Amara 92 Amaurosoma 212 Amblycirtes 84 Amblyteles 144 Americina 212 Amiota 223 Amphibolips 147 Amphidasis 65 Ampliipyra 73 Amydria 51 Anagoga 65 Anaspis 100 Anatoecus 31 Anax 25 Anchicera 105 Anchylopera 54 Ancistrocerus 153 Ancylis 54 Andrena 158 Andricus 147 Androchirus 107 Andronicus 160 Angitia 131 Anisobas 143 230 BIOLOGICAL SURVEY OF Anisocalvia 107 Anisodactylus 93 Anisosticta 106 Anisota 81 Anopheles 169 Anoplitis 117 Anoplius 153 Anoplolyda 122 Anosia 89 Anthalia 187 Antherophagus 105 Anthobium 95 Anthoboscus 113 Anthocoris 45 Anthomyia 209 Anthomyza 224 Anthonomus 120 Anthophilax Ill Anthothrips 32 Anthracophaga 222 Anthrax 180, 181 Anthreuus 104 Apamea 75 Apanteles 127 Apantesis 80 Apateticus 48 Apechtis 138 Aperileptus 131 Aphalara 38 Aphanistes 133 Apharetra 70 Aphilanthops 156 Aphiochaeta 188 Aphodius 109 Aphomia 56 Aphrophora 37 Apicia 67 Apinops 199 Apion 118 Apis 161 Aplectoides 70 Apocephalus 189 Apolima 131 Aradus 46 Archips 56 Archytas 202 Arctoeorisa 40 Arctopsyche 50 Arge 125 Argia 24 Argynnis 85 Argyra 183 Argyresthia 53 Argyria 58 Argyrotoxa 55 Arotes 140 Arthomacra 108 Asaphes 101 Ascogaster 130 Asclera 99 Asemum 110 Ashmeadopria 150 Asilus 182 Asindulum 174 Asphondylia 173 Asphragis 140 Astata 155 Asteia 224 Asteromyia 172 Atanycolus 129 Atethmia 73 Athaloptera 65 Atheta 97 Athous 101 Atmetus 137 Atraetodes 142 Atrichomelina 214 Attagenus 104 Attains 99 Attelabus 118 Anbaeanetia 199 Auletes 118 Auleutes 120 Aulonothroscus 102 Autographa 76 Azelia 208 Baceha 192 Baeocera 97 Balaninus 119 Balclutha 36 Balsa 75 Banasa 47 Bauchus 132 Bapta 64 Barce 44 Barynotus 118 Baryodma 97 Barypeithes 118 THE MOUNT DESERT REGION 231 Basilarchia 88 Bassus 129 Bellamira 112 Belonura 149 Benibidium 91 Bembidion 91 Betarmon 102 Bibio 177 Bigotomyia 206 Bittacomorpha 161 Bittacomorphella 161 Blaboplianes 51 Blasturus 24 Blennocampa 125 Blepharigena 200 Blepharocera 178 Blepharomastix 57 Bleptina 78 Blissus 46 Boletina 175 Bolitobius 97 Bolitophila 174 Bolitotherus 107 Bombus 161 Bombyliopsis 203 Bombylius 181 Bomolocha 78 Bonnetia 200 Borborus 214 Boiiomyia 27 Botanobia 223 Bothriopterus 92 Boyeria 25 Brachinus 93 Bracliyacanthus 106 Brachycoma 203 Brachydeutera 221 Brachyleptura Ill Bracliymeria 149 Brachyopa 194 Bracliypalpus 196 Brachypeza 176 Bracliyrhinus 118 Brachys 103 Bradytus 92 Biemus 161 Brenthis 86 Bruchomorpha 33 Buplex 179 Buprestis 102 Byrrhus 104 Byturus 104 Cabera 64 Cacaecia 56 Caecilius 28 Caelioxys 160 Caenurgia 76 Calamia 75 Callaspidia 148 Callibaetis 24 Callidiotes 135 Callidium 112 Calligrapha 115 Callimome 149 Callimyia 189 Calliopsis 159 Gallipliora 205 Callirhytis 147 Callopistria 74 Calobata 218 Calocalpe 61 Calocoris 44 Calosoma 91 Calotarsa 189 Camnula 22 Campaea 66 Camponotus 152 Campoplex 131 Campopligidea 131 Campsicnemus 183 Campylenchia 37 Canarsia 60 Canifa 108 Cantharus 98 Capnochroa 107 Capsus 43 Carabus 91 Caradrina 75 Cardiophorus 102 Caripeta 65 Carterocephalus 83 Cartosyrplius 191 Carynota 37 Catastenus 132 CathareUus 93 Catia 84 Catocala 76 Catocha 172 232 BIOLOGICAL SURVEY OF Cecidomyia 174 Celatoria 199 Celerio 83 Celestes 97 Celithemis 26 Ceinonus 156 Center 222 Oephaleia 122 Ceratina 161 Ceratinostoma 213 Ceratocapsus 42 Ceratomia 82 Ceratopogon 170 Cerceris 156 Cercyonis 88 Ceresa 37 Ceropales 153 Ceroplatus 174 Cerura 68 Cetema 222 Ceuthophilus 21 Ceutorhynchus 120 Chabuta 71 Chaeretymma 140 Chaetoneurophora 188 Chaetophleps 199 Chaetopsis 217 Chaetotachina 202 Chalarus 190 Chalcis 149 Chalcoides 116 Chalcophora 102 Chalepus 117 Chalybion 155 Chamaemyia 226 Chaoborus 169 Chasmatonotus 171 Chauliodes 26 Chelipoda 186 Chelonus 130 Chelymorpha 117 Cliermes 40 Chilocorus 107 Chilosia 191 Chimarrha 49 Chirida 117 Chiromyia 225 Chironomus 171 Chlacnius 93 Chlamys 114 Chloealtis 22 Chlorochroa 47 Chlorolictus 158 Chloroperla 23 Chloropisca 222 Chlorops 222 Chlorotettix 36 Choleva 95 Choreutis 53 Chorinaeus 136 Chorthippus 22 Chortophaga 22 Chortophila 210 Chromagrion 25 Chrysidea 154 Chrysis 154 Chrysobothris 103 Chrysogaster 191 Chrysopa 27 Chrysophanus 89 Chrysopilus 180 Chrysopoctonus 141 Chrysops 179 Chrysotimus 183 Chrysotoxum 191 Chrysotus 183 Chutapha 74 Chymomyza 224 Chytolita 78 Chytonix 74 Cicadella 34 Cicadula 36 Cicindela 90 Cimbex 126 Cimex 45 Cincticornia 173 Cinctotipula 168 Cinetus 150 Cingilia 65 Cireotettix 22 Cirphis 72 Cirrospiloideus 148 Cirrula 221 Cistogaster 197 Cixius 33 Cladura 163 Clanoneurum 220 Clastoptera 38 THE MOUNT DESERT REGIOISr 233 Cleis 107 Clemensia 80 Cleora 65 Clinocera 186 Clisodon 160 Clistopyga 138 Clusia 213 Clusiaria 213 Clusiodes 213 Clytochrysus 157 Cuemodon 191 Cneplilogonia 202 Coccinella 106 Coelinidea 130 Coeloides 129 Coelomyia 207 Coenosia 211 Coenus 47 Coleocentrus 140 Coleophora 51 Colias 85 CoUaria 42 CoUinella 214 Collops 99 Colopterus 105 Colpocephalum 29 Colpogiiathus 143 Colpotaulius 49 Columbiella 214 Colymbetes 94 Compsilura 201 Condidea 194 Conicera 189 Coniopteryx 27 Conistra 72 Conocephalus 21 Conopia 53 Conosoma 96 Coiitarinia 173 Coptocycla 117 Coptotomus 94 Cordilura 212 Cordulegaster 25 Cordulia 25 Cordyla 176 Cordylomyia 172 Corimelaena 48 Corizus 47 Corticaria 105 Corymbites 101 Corythucha 44 Cosmia 75 Cosmoconus 134 Cosmopepla 47 Cosymbia 61 Crabro 157 Crambus 58 Crassiseta 223 Cratophion 132 Cremastogaster 151 Cremastus 132 Creophilus 96 Croesus 125 Cryptocampus 125 Cryptocephalus 114 Cryptolechia 51 Cryptolucilia 205 Cryptopleuium 95 Cryptopristis 149 Cryptorhynelius 121 Cryptus 141 Cteniscus 136 Ctenopelma 136 Ctenucha 80 Cucullia 73 Cuculoecus 31 Culex 168 Culicoides 170 Cuphopterus 158 Cyamops 224 Cyanopterus 129 Cylindromyia 200 Cylloceria 140 Cymbiodyta 95 Cymindis 93 Cymodusa 130 Cymolomia 55 Cymus 46 Cyuomyia 205 Cynorhina 197 Cyphona 104 Cyrtolobus 37 Cyrtoma 187 Cyrtophloeba 200 Cyrtopogon 181 Dacnusa 130 Dauaus 89 Dasyllis 182 LI BR ARY -D 234 BIOLOGICAL SURVEY OF Dasylophia 68 Dasyneura 172 Debis 88 Degeeriella 31 Deilephila 83 Deleter 137 Delomerista 139 Delta 75 Deltocephalus 35 Dendroides 100 Dennyus 30 Depressaria 52 Dermestes 104 Desmia 57 Desmoeerus 112 Desmometopa 225 Diaborus 134 Diabrotica 116 Diachus 114 Diacrisia 79 Diaetinia 61 Diadocidia 174 Dialges 134 Dialyta 206 Dialytes 109 Diaperis 108 Diaphorus 182 Diastata 224 Diastictis 64 Dieaelotus 143 Dicerca 102 Dichaeta 221 Dichaetoneura 198 Dichelonyx , 110 Dicranomyia 162 Dicranopliragma 165 Dictya 215 Dicyphus 42 Didea 192 Didymops 25 Dimecoenia 221 Dimorphopteryx 123 Dinera 203 Dineutes 94 Dioctria 181 Diplazon 136 Diplotaxis 109 Diplotoxa 222 Discobola 162 Discocerina 220 Disonycha 116 Dissosteira 22 Ditrichophora 220 Dixa 168 Dolerus 123 Dolichoderus 151 Dolichonabis 45 Dolichopeza 166 Dolichopus 184 Dolopius 101 Donacia 113 Dorocordulia 25 Doryphorophaga 201 Draeculacephala 34 Drasteria 76 Drepana 81 Drosophila 224 Drymus 46 Dryocoetus 121 Dryomyza 214 Dysidius 92 Dysstroma 62 Dytiseus 94 Eclytus 135 Ectemnius 157 Eetocephala 222 Ectropis 65 Elasmostethus 47 Elater 102 Elephantomyia 163 Elgiva 215 Eliozeta 199 Elipsocus 29 Ellampus 154 EUopia 66 Emmesa 108 Empeda 163 Emphanopteryx 198 Emphytina 122 Emphytus 122 Empis 187 Empoa 37 Empoasca 36 Empria 122 Enallagma 24 Endomychus 105 Eniscospilus 134 Ennomos 66 THE MOUNT DESERT REGION 235 Ennyommopsis 198 Enochrus 95 Enodia 88 Entephria 62 Eosphoropteryx 77 Epalpus 202 Ephelia 165 Ephemera 24 Ephialtes 138, 139 Ephydra 221 Epiblema 54 Epichlorops 222 Epiglaea 72 Epinotia 54 Epiphragma 164 Epistrophe 193 Episyron 152 Epitaxonus 122 Epitrix 116 Epiurus 139 Epizeuxia 78 Eremochrysa 27 Eremotylus 134 Eriocera 165 Erioptera 163 Eriopyga 71 Eriosoma 39 Eristalis 195 Ernestia 200 Ernobius . . . 109 Ernoctona 142 Eros 97 Erromenus . 135 Erythroneura 37 Estheria 203 Esthiopterum 32 Estigmene 80 Euaresta 218 Eubadizon 130 Eubaphe 79 Eubrachymera 199 Eubule 63 Euceros 135 Euchlaena 66 Eucorethra 170 Eucosma 54 Eudicrana 175 Eudrapetis 185 Eueretagrotis 71 Euferonia 91 Eufidonia 64 Eugenacephala 213 Eugonia 87 Euhybos 186 Eulia 56 Eulimneria 133 Eulype 63 Eumenes 153 Eumerus 196 Eunotus 148 Euparthenos 76 Euphoria 110 Euphydryas 86 Euphyes 84 Euphyia 62 Eupitheeia 63 Euplectrus 148 Euplexia 73 Euproctis 69 Eureme 85 Eurhimyia 196 Eurosta 218 Eurotoma 149 Eurotype 72 Eurrhypara 58 Eurycnemus 171 Eurygaster 48 Eurymiis 85 Eurymyctor 117 Eurypogon 103 Euryproctus 136 Euscelis 35 Euschistus 47 Eusiphona 225 Eusisyropa 201 Eustalomyia 210 Eustrigiphilus 31 EutettLx 36 Eutreta 218 Eutrichogena 202 Eutrixa 199 Euura 125 Euvanessa 87 Euxoa 69 Evacanthus 34 Everes 89 Evergestis 57 Evodinus Ill 236 BIOLOGICAL SURVEY OF Evylaeus 158 Exartema 55 Exechia 176 Exema 114 Exenterus 136 Exetastes 132 Exochus 137 Exolytus 143 Exoprosopa 180 Exorista 201 Fabrieiella 202 Falearia 81 Fannia 207 Feltia 69 Feniseca 90 Forcipomyia 170 Formica 152 Frontina 201 Fucillia 209 Galeatus 44 Galerucella 115 Gasteriiption 147 Gastrellarius 92 Gastroidea 115 Gaurax 223 Gaurotes Ill Gelechia 52 Gelis 141 Genea 199 Geocoris 46 Geotrupes 109 Geranomyia 162 Gerris 41 Geshna 58 Giraudia 142 Gleschrochilus 105 Gluphisia 68 Glypta 138 Glyptocera 59 Gnathotrichus 121 Gnophomyia 163 Gnorimoscliema 52 Gomphus ■ 25 Gonia 202 Goniodes 30 Gonochrysis 154 Gonodontis 66 Gonomyia 163 Gortyna 75 Graphocephala 34 Graphomyia 206 Graphopsocus 28 Grapta 87 Gryllus 21 Gueneria 64 Gymnocarcelia 201 Gymnocelus 130 Gymnochaeta 200 Gymnophania 198 Gymnophora 189 Gymnopternus 185 Gymnosoma 198 Gypona 34 Gypsonoma 54 Gyrinus 94 Habritys 149 Habrophlebia 24 Habrophlebiades 24 Hadrodactylus 135 Haemorrhagia 83 Halictus 158 Haliplus 93 Halisidota 79 Haltica 116 Hammerschraidtia 194 Hammomyia 211 Hapalosalia Ill Harmologa 56 Harpaglaea 72 Harpalus 93 Hebecnema 208 Hecalus 35 Hedychridium 154 Helcon 130 Plelicobia 204 Helicopsyche 49 Helina 208 Helobia 163 Helochara 34 Helocordulia 25 Helomyza 213 Helophilus 195 Hemaris 83 Hemerobius 27 Hemerocampa 68 Hemerodromia 186 Hemichroa 124 Hemicrepidius 101 THE MOUNT DESERT REGION 237 Hemitaxonus 122 Hemiteles 141 Heodes 89 Hercostomus 185 Heriiigia 191 Kerpestomus 143 Hesperumia 64 Heterocampa 68 Heteromyia 170 Hilara 187 Hippelates 223 Hippodamia 106 Hister 97 Holocentropus 50 Holocremus 131 Holophris 154 Holopyga 154 Homaemus 48 Hoinelys 142 Homochlodes 64 Homoeosoma 60 Homotropus 136 Hoplismenus 146 Hoplisus 157 Hoplocryptus 141 Hoplodictya 214 Hoplogaster 211 Horisme 63 Horniaphis 39 Hormisa 78 Hormorus 118 Hyalomyodes 199 Hybos 186 Hydnocera 99 Hydrelia 63 Hydrellia 220 Hydria 61 Hydriomena 62 Hydromyza 213 Hydrophilus 94 Hydrophoria 210 Hydrophorus 184 Hydroporus 93 Hydropsyche 50 Hydrotaea 207 Hylaeus 160 Hylemyia 210 Hylephila 211 Hylobius 119 Hylotoma 125 Hymenorus 107 Hypena 79 Hyperaspis 106 Hyperetis 66 Hyperodes 119 Hyphantria 80 Hyplioraia 79 Hypocera 188 Hypocrabro 157 Hypomolyx 119 Hyposoter 131 Ichneumon 139 Idiocerus 34 Illylnus 94 Unacora 42 Ilythea 220 Incialia 89 Iphiaulax 129 Ipiniorpha 75 Ips 105, 121 Ischnorhynchus 45 Isclinura 25 Ischnus 143 Iseropus 139 Isia 79 Isoliydnocera 99 Isomira 107 Isoperla 23 Isturgia 63 Itanie 64 Itamoplex 140 Itonida 174 Itoplectis 138 Itycorsia 121 Janus 126 Johannsenomyia 170 Judolia Ill Jurinia 203 Kelisia 33 Labrorychus 133 Laccocera 33 Laccophilus 93 Laelmosterna 110 Laemobothrion 30 Lagium 123 Lamenia 33 Lampracanthia 41 Lamprotatus 149 238 BIOLOGICAL SURVEY OF Laodamia 60 Lapara 82 Laphria 182 Laphyroscopus 135 Larropsis 155 Lasioglossum 158 Lasiomastix 165 Lasioptera 172 Lasius 151 Lathridius 105 Lathrobium 95 Lauxania 215 Lebia 92 Leia 176 Lejops 196 Lema 114 Lepidosaphes 40 Leptinotarsa 115 Leptis 180 Leptobyrsa 44 Leptocella 50 Leptocera 214 Leptogaster 181 Leptopeza 186 Leptopygus 132 Leptorhaptus 150 Leptothorax 151 Leptura 112 Lepturoides 101 Lepyronia 37 Lestes 24 Lestremia 172 Lethocerus 40 Leueania 73 Leucanium 40 Leuconycta 74 Leucopis 226 Leucorrhinia 26 Leucospis 149 Leucostola 183 Leucozona 192 Leuctra 23 Liancalus 184 Libellula 26 Liburnia 33 Liburniella 33 Lichenomina 29 Ligyrocoris 46 Lima 115 Limnaecia 53 Limnephilus 49 Limneria 131 Limnia 215 Limnophila 164 Limnoporus 41 Lininospila 208 Limonia 162 Linnaemyia 200 Liogma 166 Lipeurus 30 Lispa 209 Lispocephala 209 Lissonota 139 Listotrophus 96 Lithacodes 51 Lithacodia 75 Lithomoia 72 Livia 38 Lixis 80 Lixophaga 199 Lobophora 61 Loderus 123 Lomanaltes 79 Lonchaea 216 Lonchoptera 188 Longitarsus 117 Lophocrabro 157 Lophodonta 68 Lopus 41 Loxocera 219 Lucidota 97 Lucilia 205 Ludius 101 Luperina 74 Luperodes 116 Lycaena 89 Lycaenopsis 89 Lycomorpha 80 Lycophotia 70 Lygaeus 45 Lygris 61 Lygus 43 Lyperosia 205 Lytogaster 221 Macaria 64 Machimia 51 Macrobasis 100 Macrocentrus 129 THE MOUNT DESERT REGION 239 Macrocera 174 Macrocoenosia 211 Macrolophus 42 Macrophya 124 Macropis 159 Macrops 119 Macropsis 34 Macrorchis 211 Macrosargus 178 Macrostylus 41 Madiza 223 Magdalis 119 Malachius 99 Malacosoma 81 Mallochiella 225 Mallota 195 Malthodes 98 Mamestra 71 Marathyssa 76 Matuta 70 Meadorus 47 Mecomma 42 Mecostethus 22 Medeterus 183 Megachile 160 Megamelanus 33 Megarhyssa 137 Megaselida 188 Melanochaeta 223 Melanopliila 103 Melanophthalma 105 Melauoplus 22 Melanorhopala 44 Melanostoma 192 Melanotus 102 Melaphis 39 Meleoma 27 Melissodes 159 Melitaea 86 Meloe 100 Memytlirus 53 Meniscus 139 Meuopon 29 Meoiieura 225 Merocoris 46 Merodon 195 Meromyza 222 Meroplius 219 Meroptera 59 Mesochorus 132 Mesoeyphona 163 Mesoleius 135 Mesoleptidea 135 Mesoleptus 135 Mesoleuca 63 Mesotenus 140 Mesovelia 44 Metalestra 78 Metanema 67 Meteorus 129 Metliypostena 199 Metopia 204 Miarus 120 Microbraeon 128 Microchrysa 178 Microcryptus 142 Microdon 190 Microgaster 128 Microgoes 113 Micromus 27 Microphorus 187 Mierophthalma 203 Microplitis 128 Micropteryx 50 Microrhagus 102 Microrhopala 117 Microsania 190 Microtomus 108 Milichiella 225 Minettia 215 Miris 42 Molophilus 163 Monalcoris 42 Monoblastus 134 Monochamus 113 Monoclona 175 Monodes 75 Monohammus 113 Monopis 51 Monoxia 116 MordeUa 100 Mordellistena 100 Morellia 206 Mumetopia 225 Musca 205 Muscina 206 Myas 91 Mycetaulus 219 240 BIOLOGICAL SURVEY OP Mycetina 105 Mycetophila 176 Mycodiplosis 173 Mycomya 175 Mycothera 176 Mydaea 208 Myelois 59 Myersia 147 Myiospila 206 Myopsocus 29 Myrmica 151 Myrmosa 150 Myrsidea 29 Myrsina 201 Mystacides 50 Mytilas 40 Nabicula 45 Nabis 45 Nannothemis 26 Napaea 221 Napomyza 227 Neaspilota 218 Nebria 91 Necrobia 99 Necrophorus 95 Nehalennia 25 Neleucania 72 Nematocampa 66 Nemioblastus 131 Nemobius 21 Nemopodia 219 Nemoria 60 Nemorilla 200 Nemoura 23 Neoascia 194 Neoborus 43 Neocatolaccus 148 Neocladura 163 Neoclytus 112 Neodiprion 122 Neolasioptera 172 Neoleria 213 Neomysia ' 107 Neophylax 49 Neopus 123 Neosciara 177 Neottiglossa 47 Nephelodes 72 Nephrotoma 166 Nepytia 65 Neiiratelia 175 Neuroctena 214 Neurogonia 183 Neuronia 49 Nitidula 105 Nicrorhagus 102 Nomada 159 Nomaretus 90 Xomophila 57 Nomotettix 23 Nothosympycnus 183 Notiophilus 91 Notiphila 220 Notolophus 68 Notonecta 40 Notopygus 135 Notozus 154 Nyctibora 21 Nymphula 57 Nysius 45 Nysson 157 Oberea 113 Obolodiplosis 173 Ochrocera 203 Oclithera 221 Ochthiphila 225 Ocydromia 187 Ocyptera 200 Ocypterosoma 198 Ocypus 96 Odontaulacus 147 Odontomerus 137 Odontomyia 179 Odontota 117 Odynerus 154 Oecetina 50 Oedalea 186 Oedionychis 116 Ogcodes 180 Oidaematophorus 60 Olemira 50 Olesicampe 131 Olethreutes 55 Olibrus 106 Oligia 74 Oligothrophus 173 Omaseus 92 Omosita 105 THE MOUNT DESERT EEGION 241 Oncocnemis 71 Oncometopia 3-4 Oncomyia 197 Oncopsis 34 Ontholestes 96 Onthophagus 109 Ophaltes 133 Ophiderma 37 Ophion 134 Ophyra 207 Opius 127 Opsebius 180 Opsodexia 203 Orelielimum 21 Orchestes 120 Orectoderus 42 Oreogeton 187 Oreta 81 Ormosia 164 Ornithobius 32 Ornithoica 227 Ornithomyia 227 Oriiithoponus 227 Orouotus 143 Oropeza 166 Orphulella 22 Orsodachna 114 Orthacheta 212 Orthocephalus 42 Orthoceratium 184 Orthofidonia 64 Ortholomus 45 Ortlionama 62 Orthotomicus 121 Orthotylus 42 Oscinis 223 Osmia 160 Otiorhynchus 118 Oxybelus 157 Oxyporus 96 Oxyptilus 60 Oxystoglossa 159 Pachybrachys 114 Pachynematus 125 Pachyophthalmus 204 Pachyprotasis 123 Pachysphiiix 83 Packardia 51 Paeonias 82 Pagasa 45 Palloptera 217 Palpomyia 170 Palthis 78 Paniphila 84 Pangonia 179 Pangrapta 77 Paniscus 133 Paiiorpa 48 Pantliea 76 Pautoclis 150 Papaipema 75 Papilio 84 Parac'lius 185 Paradexodes 199 Paragus 191 Parahelophilus 196 Paralimnophora 208 Parallelia 76 Panillelina HI Parallelomma 212 Paramesius 150 Paramyia 225 Parauomalon 133 Parastichtis 72 Parataxonus 122 Parectecephala 222 Paregle 211 Parexorista 201 Paria 115 Parydra 221 Passaloecus 156 Patrobus 91 Pedicia 165 Pegomyia 209 Pelastoueurus 185 Pelecinus 150 Pelenomus 120 Peleteria 202 Pelomyia 225 Pemphigus 39 Pempliredon 156 Penthe 108 Peoria 60 Peribalus 47 Perigea , 74 Perilampus 149 Perillus 48 Periope 136 242 BIOLOGICAL, SURVEY OF Peripsocus 28 Perithous 138 Perla 23 Perlinella 23 Pero 67 Peronea 55 Pezoporus 137 Phaeogenes 143 Phalaenopliana 78 Phalocrocera 166 Phalonia 56 Phaonia 206 Pharmacis 56 Phasia 198 Phellopsis 107 Pheosia 67 Pherbellia 214 Philaenus 38 Philanthus 156 Philaronia 38 Philhydrus 95 Philobia 64 Philometra 78 Philonthus 96 Philopotamus 50 Philopterus 30 Philotarsus 29 Philygria 221 Phlegyas 46 Phlepsius 36 Pholeomyia 225 Phora 189 Phorichaeta 202 Phormia 205 Phorocera 201 Phortica 224 Photinus 98 Photurus 98 Phyciodes 86 Phygadeuon 142 Phylidora 165 Phyllobaenus 99 Phyllocnistis 51 Phyllodecta 115 Phyllodinus 33 Phyllogaster 209 Pliyllomyza 225 Phyllophaga 110 Phyllotreta 117 Pliylocentropus 50 Phlyctaenia 57 Phryganea 48 Plirynofrontiiia 201 Phryxe 201 Phymatodes 112 Physocephala 197 Physostegania 64 Phytocoris 44 Phytodietus 137 Phytomyza 226 Phytophaga 173 Pieris 84 Pilaria 165 Pilatea 201 Pimpla 138 Piophila 219 Pipiza 191 Pipizella 191 Pipunculus 190 Pissodes 119 Pithanus 42 Pityobius 101 Pityogenes 121 Pityophthorus 121 Plagia 200 Plagiognathus 41 Plagodjs 66 Plathemis 26 Plathypena 79 Platycentropus 49 Platycerus 110 Platychirus 192 Platycoenosia 207 Platylabus 143 Platymetopius 35 Platynus 92 Platypalpus 186 Platypeza 189 Platypezoides 190 Platyptilia 60 Platysoma 97 Platytylellus 43 Platyura 174 Plecia 177 Plectiscus 131 Plectoeryptus 142 Plesignathus 142 Pleuroprucha 61 THE MOUNT DESERT REGION 243 Pleurotropis 148 Plusia 77 Poanes 84 Podabrus 98 Podalonia 155 Podisus 48 Poecilocapsus 43 Poeciloeystus 43 Poecilus 92 Poemenia 137 Pogonomyia 207 Pogonomyza 211 Pogonosonia 182 Polia 71 Polidea 199 Polites 84 Pollenia 205 Polyblastus 134 Polycentropus 50 Polydontomyia 196 Polydrusus 118 Polygonia 87 Polygraphus 121 Polylepta 175 Polymerus 43 Polypsoeus 28 Polyselandria 123 Polysphincta 138 Pompiloides 152 Pontania 125 Pontia 84 Porosagrotis 69 Porphyrops 183 Porricondyla 172 Portlietria 69 Priocnemis 153 Prioeycla 67 Prionocyphoua 104 Prionolabis 165 Pristiphora 124 Pristodactyla 92 Probezzia 171 Prociphilus 39 Proclitus 132 Promethes 136 Prosalpia 211 Proscus 143 Prosimulium 178 Prosopis 160 Protenor 46 Protocalliphora 204 Protophormia 205 Psairoptera 217 Psammochares 152 Psammophila 155 Psen 156 Pseudageiiia 153 Pseudenautha 199 Pseudoanthonomus 120 Pseudoculicoides 170 Pseudolimiiophora 165 Pseudomenopon 30 Pseudopsila 219 Pseudotephritis 217 Pseudothyatira 80 Psila 220 Psilomastix 147 Psilopa 220 Psilopus 182 Psithyrus 161 Psocus 28 Psychoda 170 Psylla 39 Psylliodes 117 Psyllobora 106 Pteronidea 125 Pterophorus 60 Pterostiehus 91 Ptilodexia 203 Ptinus 108 Ptychopoda 61 Ptychoptera 161 Publilia 37 Pycnoglossa 211 Pycnopsyche 49 Pyractomena 98 Pyralis 58 Pyrameis 87 Pyrausta 57 Pyrellia 206 Pyrophaeua 192 Quedius 96 Eallicola 32 Ranatra 40 Eaphia 77 Eavinia 204 Eeuia 78 Ehabdophaga 172 244 BIOLOGICAL SURVEY OF Rhaehieerus 178 Rhagio 180 Rhagium Ill Rhagoletis 217 Rhagovelia 41 Rhamphomyia 187 Rhaphidolabis 166 Rhaphium 183 Rhegmoclema 177 Rheumaptera 63 Rhingia 194 Rhinoeapsus 41 Rhinoncus 120 Rhipidia 162 Rhodites 148 Rhodophora 69 Rhogas 130 Rliyacophila 49 Rhyncliagrotis 71 Rhynchites 118 Rhysophora 220 Rhyssa 137 Ricinis 30 Riechertella 177 Rivellia 217 Rivula 77 Ropalopus 112 Sabulodes 67 Sagaritis 131 Saldula 41 Salebria 59 Saltella 219 Saperda 113 Saprinus 97 Sapromyza 216 Sapromyzosoma 216 Sarcophaga 204 Sargus 178 Satyrodes 88 Satyrus 88 Scambus 139 Seaphinotus 90 Scaphisonia 97 Scaphoideus 35 Scaptomyza 224 Scatella 221 Scatophagu 212 Scatophila 222 Scatophilella 214 Sceliphron 156 Seenopinus 181 Sceptonia 177 Sehizotachina 198 Schizotus 100 Schizura 68 Schoenomyza 211 Sciaphilus 118 Sciapus 182 Seiara 177 Sciocoris 47 tSciomyza 214 Sciophila 175 Scirtes 104 Scoliocentra 213 Scoliopteryx 77 Scoparia 58 Scopesis 134 Scopiorus 136 Scotobates 108 Scotogramnia 71 Scudderia 21 Scymuus 106 Sehirus 48 Seioptera 217 Selenophorus 93 Semiseopis 52 Seiiotainia 204 Sepedon 215 Sepsis 218 Septis 73 Serica 109 Sericomyia 195 Serieus 101 Serphus 150 Serromyia 170 Serropalpus 108 Sialis 26 Sicya 65 Sidemina 74 Sideridis 72 Silpha 95 Simulium 178 Sinea 44 Siphona 200 Siphouella 223 Siphophyto 200 Sirex 126 Sisvra 27 THE MOUNT DESERT REGION 245 Sitona 119 Sitones 119 Smerinthus 82 Solenius 157 Solenozopheria 148 Somula 197 Sophropompilus 153 Spallanzania 202 Spanui 180 Spanoteenus 135 Spargania 62 Sparganothis 55 Spathidexia 203 Spathius 130 Sphaerophoria 194 Sphecodes 159 Sphegina 194 Sphenophorus 121 Sphex 155 Sphinx 82 Spilochalcis 149 Spiloeryptus 141 Spilogona 208 Spilomyia 197 Spogostylum 180 Spudaea 135 Staphylinus 96 Stegana 224 Stenocryptus 141 Stenodema 43 Stenoloplius 93 Stenoma 52 Stenosyrphus 193 Stenus 95 Sterictiphora 126 Stethorus 106 Stigmus 156 Stilpnotia 69 Stiphrosomus 134 Stobaera 33 Stomoxys 205 Strangalepta Ill Straugalia Ill Stratiomyia 179 Strongylocoris 42 Strongylogaster 123 Strongylogastroidea 123 Strymon 89 Sturmia 201 Stygeropis 166 Stylocryptus 142 Stylops 90 Suillia 213 Swammerdamella 177 Symmerista 68 Symmerus 174 Symmorphus 153 Sympetrum 26 Sympherobius 27 Symphora 108 Sympiesis 148 Sympycnus 183 Synanthedon 53 Synchlora 60 Syndyas 186 Syneches 186 Synelys 60 Syneta 114 Synomelix 135 Syntemna 176 Syntomaspis 149 Syritta 196 Syrphoctonus 136 Syrphus 192 Systeua 116 Tabanus 179 Tacliinus 96 Tachypeza 186 Tachypterellus 119 Tachys 91 Tachyta 91 Tachytrechus 185 Taeuiorhynchus 168 Tanypeza 218 Tanyptera 166 Tanypus 171 Tapinoma 151 Taxonus 122 Telea 81 Telephorus 98 Telmatophilus 105 Tcmnostoma 197 Tenebrio 108 Tenthredella 123 Tenthredo 124 Tephritis 218 Tephrochlamys 213 Tephrouota 217 246 BIOLOGICAL SURVEY OP Terellia 218 Terias 85 Tetanocera 215 Tetrachrysis 154 Tetragoiieuria 26 Tetralopha 59 Tetramerinx 209 Tetrophthalmus 30 Thamnotettix 36 Thanaos 83 Thanasimus 99 Thecla 89 Thecophora 197 Thelaira 203 Themira 219 Thera 62 Thereva 181 Therion 133 Theronia 139 Thiodia 54 Thorybes 83 Thryptoeera 198 Thymalus 104 Thyreodon 133 Thyreopus 157 Tibicen 38 Tinea 51 Tineola 51 Tiphia 150 Tipula 167 Tomicus 121 Tomostethus 125 Tomoxia 100 Tortricidia 51 Tortrix 56 Torymus 149 Toxomerus 194 Toxorhina 163 Trachea 73 Tragosoma 110 Trechodesia 61 Trepobates 41 Triachus 114 Triaenodes 50 Trichina 187 Trichiocampus 125 Trichiotinus 110 Trichisoma 126 Tricliius 110 Trichocellus 93 Trichoclytia 198 Trichodes 99 Trichonta 176 Trichopalpus 212 Trichotaphe 53 Trichotipula 168 Triclistus 136 Tricopticus 207 Tricyphona 165 Trigonalys 147 Trigonoderus 148 Trigonotylus 42 Trimerina 220 Trinton 30 Trioza 39 Triphleps 45 Trirhabda 115 Trishormomyia 173 Trogus 147 Tromatobia 139 Tropaea 81 Tropidia 196 Tropisternus 94 Trox 110 Trychosis 141 Trypetopteia 214 Tryphon 134 Trypoxylon 155 Tychius 119 Typhlocyba 37 Typitium 99 Typocerus 112 Ula 164 Upis 108 Urocerus 126 Utetheisa 80 Vanessa 87 Venusia 63 Verrallia 190 Vespula 155 Viereckiana 131 Villa 181 Volucella 194 Voria 200 Winthemia 202 Wohlf ahrtia 204 Wyeomyia 168 Xanthia 73 THE MOUNT DESERT REGION 247 Xanthorhoe 62 Xanthotype 66 Xenoschesis 132 Xestocis 109 Xestocrabro 157 Xiphydria 126 Xorides 137 Xylonomus 137 Xylopliagus 178 Xylota 196 Xylotomima 196 Xylotreclms 112 Xylotype 72 Zaglyptus 138 Zaleptopygus 133 Zanclognatha 78 Zele 130 Zelus 44 Zenillia 201 Zodion 197 Zonosema 217 Zootrephes 137 Zygoneura 177 rc A r? 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