pubescent, the basal joint thickest, narrowed at base, longer than the second, the third longest, slender like the succeeding ones; under side of head and the bucculæ dull testaceous; the rostrum slender, reaching upon the venter, dull testaceous; eyes, dark brown, with coarse and few facets. Pronotum broader than long, flattened, the humeri well defined by a brown sulcus; impressed line between the lobes distinct, as also the three fovear on the centre, those of each side less distinct; the surface very minutely punctured: pleural pieces darker, with a few very remote, large punctures. Venter smooth, blackish-piceous, densely sericeous pubescent, margined with dull fulvous. Hemelytra pale brownish, minutely pubescent, the nervures darker, the membrane scarcely reaching to the tip of the abdomen.

Length scarcely 2 millimeters. Width of pronotum millimeter.

Habitat.-New Mexico, Lieut. W. L. Carpenter. San Ildefonso, N. Mex., in July, Dr. H. C. Yarrow.

H. remigis.

FAMILY HYGROTRECHIDÆ.

HYGROTRECHUS, Stål.

Gerris remigis, Say; Heteropt. New Harmony, p. 35, No. 1.

From water on the plains of Southern Colorado and Northern New Mexico, June, July, and October, by Lieut. W. L. Carpenter.

1. G. oculatus.

FAMILY GALGULIDE.

GALGULUS, Latr.

Naucoris oculata, Fab; Syst. Rhyng., p. 111, No. 5.

Galgulus oculatus, Latr; Hist. Nat. Ins., xii, p. 286, pl. 95, fig. 9.

Galgulus bufo, H. Schf; Wanz. Ins., v, p. 88, fig. 536.

Collected at San Ildefonso, N. Mex., August 17, by W. G. Shedd; Cave Spring, Ariz., Mr. Henshaw.

2. G. rariegatus.

Galgulus variegatus, Guerin; Icon. Regne Animal, p. 352.

Galgulus pulcher, Stål; Öfv. Vetensk. Akad. Förhandl. 1854, p. 239, No. 1.

Santa Barbara, Cal., Mr. Henshaw and Dr. O. Loew; also at Abiquiu, N. Mex., Dr. H. C. Yarrow, in September.

A. Signoreti.

FAMILY NAUCORIDE.

AMBRYSUS.

Ambrysus Signoreti, Stål; Hemipt. Mex. Stettin. Ent. Zeit., xxiii, p. 460, No. 336.
Naucoris Poeyi, Amyot & Serv; Hemipt., p. 434, pl. 8, fig. 5.

Taken at San Ildefonso, N. Mex., July, by Dr. H. C. Yarrow; in New Mexico, July, by Lieut. W. L. Carpenter; and in the Mojave River, Cal., in July, by Dr. O. Loew.

FAMILY BELOSTOMIDE.

BELOSTOMA, Auctor.

B. annulipes.

Belostoma annulipes, H. Schf; Wanz. Ins., viii, p. 28, figs. 803, 204.

A nympha was taken near San Ildefonso, in July, and an imago at Pagosa, Colo., September 5, by Dr. H. C. Yarrow.

1. P. macronyx.

PEDINOCORIS, Mayr.

Pedinocoris macronyx, Mayr; Verhandl. Wien. Zool.-Botan. Gesell, 1963, p. 350, tab. 11, figs. 1-4 Obtained in the Gila River, Arizona, by Dr. C. G. Newberry.

2. P. indentata.

Zaitha indentata, Hald., Proc. Acad. Philada., vi, p. 364.

l'edinocoris brachonyx, Mayr; Verbandl. Wien. Zool.-Botan, Gesell, 1963, p. 351, tab. 11, fig. 5. From the Mojave River, California, July, Dr. O. Loew, and from Keruville, Cal., by Mr. Henshaw, September 2.

ABEDUS, Stål.

A. breviceps.

Abedus breviceps, Stål; Stettiner Ent. Zeit., xxiii, p. 462.

Collected at San Ildefonso, N. Mex., August 17, by Mr. Shedd; Camp Lowell, Arizona, August, Mr. Henshaw, and in Arizona, July, by Mr. Rutter.

FAMILY NOTONECTIDE.

NOTONECTA, Linn.

1. N. undulata.

Notonecta undulata, Say; Heteropt. New Harmony, p. 39, No. 1.

From Abiquiu, N. Mex., September, by Dr. Yarrow, and San Ildefonso, N. Mex., August 17, Mr. Shedd.

2. N. insulata.

Notonecta insulata, Kirby; Fauna Bor. Amer., iv, p. 285, No. 399.
Notonecta rugosa, Fieber; Rhynchotographien, p. 52, No. 7.

Collected at Camp Lowell, Ariz., in August, by Mr. Henshaw, and elsewhere in Arizona, in July, by Mr. Rutter.

FAMILY CORISIDAE.

CORISA, Geoff.

1. C. interrupta.

Corixa interrupta, Say; Journ. Acad. Philada., iv, p. 328, No. 1.

From New Mexico, in October, by Lieut. W. L. Carpenter, and from San Ildefonso, N. Mex., by Dr. H. C. Yarrow.

2. C. alternata.

Coriza alternata, Say; Journ. Acad. Philada., iv, p. 329, No. 2.

From San Juan River in New Mexico, by Mr. Browne.

3. C. sutilis.

Corixa sutilis, Uhler; Bulletin U. S. Geogr. Surv. of the Territ., vol. ii, No. 5, p. 73. From the plains of Northern New Mexico, in October, by Lieut. W. L. Carpenter.

1. C. synodica.

HOMOPTERA.

FAMILY STRIDULANTIA.

CICADA, Fab.

Cicada synodica, Say; Journ. Acad. Philada., vol. iv, p. 334, No. 6.
From Southern Colorado, June-July, by Lieut. W. L. Carpenter.

2. C. rimosa.

Cicada rimosa, Say; Journ. Acad. Philada., vol. vi, p. 235, No. 2.

Collected in Southern Colorado, June-July, by Lieut. W. L. Carpenter.

FAMILY MEMBRACIDEÆ.

CERESA, Fairm.

C. bubalus.

Membracis bubalus, Fab., Ent. Syst, vol. iv, p. 14, No. 23.

Ceresa bubalus, Fitch; Catalogue of Ins. N. Y. State Cabinet, p. 50, No. 632.

From San Ildefonso, N. Mex., and near Pueblo, Colo., by Dr. H. C. Yarrow; also from San Ildefonso, by Mr. Shedd.

S. vau.

SMILIA, Germar.

Membracis vau, Say; Journ. Acad. Philada., vol. vi, p. 299, No. →.
Smilia vau, Fitch; Cat. of Ins. of N. Y. State Cabinet, p. 43, No. 658.

Collected in Northern New Mexico, June-July, aud also in October, by Lieut. W. L. Carpenter.

C. curvata.

CAMPYLENCHIA, Stál.

Membracis curvata, Fab., Syst. Rhyng., p. 13, No. 34.

Membracis latipes, Say: Long's Exped., ii, p. 302, No. 5.

Enchenopa Antonina, Walk; Brit. Mus. List. Homopt. ii, pp. 488-491, Nos. 32, 33, 35, 36, 37.

E venosa, Walk; Brit. Mus. List. Homopt. ii, pp. 483-491, Nos. 32, 33, 35, 36, 37.

E. densa, Walk; Brit. Mus List. Homopt. ii, pp. 488-491, Nos. 32, 33, 35, 36, 37.

E frigida, Walk; Brit. Mus. List. Homopt. ii, pp, 488-491, Nos. 32, 33, 35, 36, 37.

E. bimaculata, Walk; Brit. Mus. List. Homopt. ii, pp. 488-491, Nos. 32, 33, 35, 36, 37. Collected in New Mexico, by Mr. Rutter.

P. modesta.

PUBLILIA, Stâl.

Publilia modesta, Uhler; Bulletin U. S. Geolog. Survey of the Territ., vol. ii, No. 5, p. 78, No. 2. Collected at San Ildefonso, N. Mex., by Dr. H. C. Yarrow, and at Cave Spring, Ariz., by Mr. Henshaw.

DARIUS, Fab.

An immature specimen of species allied to D. lateralis, Fab., was in the collection of Dr. O. Loew, from the Mojave Desert, California.

Similar in form to T. querci, Fh., but not quite so broad, the base of the dorsal prominence more compressed. Color (of the alcoholic specimen) yellowish, clouded with brown, particularly on the sides and tip of the prominence; also at the end of the scutellum, and on the base and more largely on the tip of the hemelytra. Head uneven, yellowish, remotely, finely and irregularly punctured with brown; cheeks and rostrum hairy. Pronotum with brown, coarse, sunken punctures, the punctures finer anteriorly and placed less closely, and so, also, a little way from the apex; central carinate line interruptedly brown, smooth; humeri prominent, laminar, almost rectangular. Dorsal prominence subpyramidal, compressed above, the tip rounded, edged with piceous, with a few coarse, deep, dragged punctures, which are bounded by tumid, almost linear, oblique interstices; the carinate line continue to the tip of pronotum, and paler both below and behind the summit; the apex, with four irregular, longitudinal rows of punctures, with raised linear interstices; lateral edge smooth pale, somewhat interrupted with brown. Hemelytra obscured hyaline, with a large oval spot at tip; their extreme base, the two upper nervures on the middle, and the punctures bounding the nervures each side throughout their length brown. Legs yelfowish, tinged with piceous, the tibia spotted with brown on their outer sides; bristles pale yellowish, the base and extreme tip of tarsi, and the nails piceous. Venter blackish, with the incisures yellowish.

The hemelytra extend considerably beyond the pronotum and are obliquely narrowed at tip.

Length to tip of pronotum, 8 millimeters; to tip of hemelytra, 9 millimeters. Width between the humeral angles, 4 millimeters. Altitude to summit of dorsal prominence, scant 4 millimeters.

Collected in Southern Colorado, in July, by Lieut. W. L. Carpenter.

FAMILY FULGORIDE.

SCOLOPS, Germar.

S. sulcipes.

Fulgora sulcipes, Say; Journ. Philada. Acad., vol. iv., p. 335.

Obtained in Southern Colorado, June-July, by Lieut. W. L. Carpenter.

P. costalis.

FAMILY TETTIGONIDE.

PROCONIA, Amyot & Serv.

Tettigonia costalis, Fab., Ent. Syst., Suppl., p. 516, Nos. 22, 23. Signoret, Ann. Soc. Ent. France, 3d ser., ii, p. 359, pl. 12, fig. 8.

Cercopis marginella, Fab., Syst. Rhyng., p. 96, No. 41.

Cercopis lateralis, Fab., Ent. Syst., Suppl., p. 524, No. 24. Coquebert, Illustr., vol. i, p. 35, tab. 9, fig. 3.

Tettigonia lugens, Walker: Brit. Mus. List, Homopt., iii, p. 775, No. 108.

Tettigonia pyrrhotelus, Walk., 1. c. iii, p. 775, No. 109.

Widely distributed in North America, occuring on both sides of the continent, and as frequent in the cold north of British America as in the warm regions of the subtropics.

Captured near Abiquiu, N. Mex., by Dr. O. Loew.

T. hieroglyphica.

TETTIGONIA, Sign. (Geoff.)

Tettigonia hieroglyphica, Say; Jour. Acad. Philada., vol. vi., p. 313, No. 6.

Taken in Northern New Mexico, by Lieut. W. L. Carpenter, and in the Mojave Desert, in July, by Dr. O. Loew.

H. communis.

HELOCHARA, Fitch.

Helochara communis, Fitch; Heteropt., New York State Cabinet, p. 56., Nos. 753, 754. Taken in Northern New Mexico, in July, by Lieut. W. L. Carpenter.

B. siccifolius.

BYTHOSCOPUS.

Bythoscopus siccifolius, Uhler; Bulletin U. S. Geolog. Survey of the Territories, vol. ii, p. 93,
No. 2.

Taken in New Mexico, September, by Lieut. W. L. Carpenter.

Many specimens of APHIDE, obtained from various kinds of plants, are included in several of the bottles, but they are changed too much by their alcoholic bath to admit of correct determination.

APPENDIX OO.

ANNUAL REPORT OF CAPTAIN G. J. LYDECKER, CORPS OF ENGINEERS, FOR THE FISCAL YEAR ENDING JUNE 30,

1877.

EXPLORATIONS AND SURVEYS, MILITARY DIVISION OF THE MISSOURI.

HEADQUARTERS MILITARY DIVISION OF THE MISSOURI, OFFICE OF THE CHIEF ENGINEER, Chicago, Ill., September 25, 1877. GENERAL: I have the honor to submit the following report of operations connected with this office for the fiscal year ending June 30, 1877 : By General Order No. 6, Headquarters Military Division of the Missouri, I was "announced as chief engineer officer on the division staff, during the temporary absence of Maj. George L. Gillespie, Corps of Engineers," in pursuance of Special Orders No. 85, current series, from the Headquarters of the Army.

Since assuming charge, I have had no funds for defraying expenses incident to operations pertaining to the duties of this office, consequently it has been impossible to accomplish any work worthy of note. The record shows that about the same condition of affairs existed during Major Gillespie's administration, viz: from July 1, 1876, to May 1, 1877, telegraphic instructions from the Chief of Engineers, dated July 29, 1876, having directed as follows: "Appropriations for surveys, &c., having failed in Congress, no indebtedness will be incurred subsequent to July 31, 1876."

All work done in the office has been by a man detailed from those enlisted for the general service, and has consisted generally in the routine business, such as making duplicate tracings of sketches, maps, &c., accompanying reports passing through this office, and which are re quired to perfect the files in the office of the Adjutant-General; these frequently furnish data for correcting inaccuracies in existing maps, and whenever found the corrections have been made. It has not been practicable, however, to make any progress on the new maps of the Western Territories. This work should be resumed with as little delay as practicable, for the information which the maps will contain is greatly needed in carrying on the operations against the Indians, and for various other public purposes.

For the above object, and in order that any practical benefit may be derived from the continuation of this office, it is necessary that an appropriation sufficient for the work should be made available.