1434. 
1435. 
1456. 
1437. 
1438. 
1439. 
1440. 
1441. 
1442. 
1443. 
1444. 
1445. 
1446. 
f 1447. 
1448. 
1449. 
1450. 
1451. 
1452. 
1453. 
1454. 
COLEOPTERA OF 
congener Payk. 
ambiguus Say. 
ovoideus Lec. 
muticus Sharp. 
anthracinus Mann. 
scapularis Mann. 
subfuscatus Sharp. 
Austinii Sharp. 
strigulosus Ст. 
nanus Lec. 
morosus Lec. 
infuscatus Aubé. 
reticulatus Kirby. 
obsoletus Lec. 
Lecontei Cr. 
griseipennis Lec. 
obliteratus Lec. 
erythroptėrus Say. 
arcticus Payk. 
nigroæneus Hr. 
lutosus Cr. 
gagates Aubé. 
discors Lec. 
tristis Aubé. 
clavatus Lec. 
subopacus Mann. 
terminalis Melsh. 
leptapsis Lec. 
longulus Lec. 
Scutopterus Esch. 
1455. 
1456. 
angustus Lec. 
Hornii Cr. 
Rhantus Esch. 
1457. 
1458. 
1459. 
1460. 
1461. 
1462. 
1463. 
1464. 
1465. 
1466. 
1467. 
divisus Aubé. 
flavogriseus Cr. 
longipes Sharp. 
obscurus Sharp. 
binotatus Harr. 
plebejus Sharp. 
anisonychus Cr. 
atricolor Aubé. 
ealidus Каб. 
consimilis Mots. 
sinuatus Lec. 
notatus Fab. 
sericans Sharp. 
bistriatus Bergst. 
tostus Lec. 
discedens Sharp. 
NORTH AMERICA. 
Colymbetes Clairv. 
Cymatopterus Esch. 
» 1468. Раука Er. 
1469. longulus Lec. 
1470. obscuratus Mann. 
1471. seminiger Lec. 
ineequalis Horn. 
1472. strigatus Lec. 
1473. gronlandicus Awbé. 
1474. sculptilis Harr. 
exaratus Lec. 
rugipennis Sharp. 
1475. Thomsoni Sharp. 
Eretes Lap. 
1476. sticticus Linn. 
Hydaticus Leach. 
1477. stagnalis Fab. 
americanus Sharp. 
modestus Sharp. 
1478. levipennis Thom. 
1479. piceus Lec. 
1480. bimarginatus Say. 
Dytiscus Linn. 
1481. fasciventris Say. 
1482. hybridus Aubé. 
1483. verticalis Say. 
1484. marginicollis Lec. 
1485. sublimbatus Lec. 
Cordieri Aubé. 
1486. marginalis Linn. 
1487. circumcinctus Ahr. 
? anxius Mann. 
1488. parvulus Mann. 
1489. vexatus Sharp: 
1490. dauricus (еб. 
confluens Lec. 
1491. Harrisii Kirby. 
Acilius Leach. 
1492. semisuleatus Aubé. 
1493. fraternus Harr. 
1494. mediatus Say. 
Thermonectes Esch. 
1495. ornaticollis Aubé. 
1495a. nigrofasciatus Aubé. 
сы Уна 
аа 
E. ` 

چ 
== 
паа 
COLEOPTERA OF NORTH 
1496. basilaris Harr. 
1496a. intermedius Cr. 
14960. latecinetus Lec. 
1497. marmoratus Hope. 
Graphoderes Esch. 
“1498. liberus Say. 
1499. fasciatocollis Harr. 
perplexus Sharp. 
elatus Sharp. 
1500. . occidentalis Horn. 
Gyrinus Linn. 
1505. minutus Габ. 
f 1506. rockinghamensis Lec. 
1507. confinis Lec. 
1508. fraternus Coup. 
`{ 1509. seneolus Lec. 
1510. limbatus Say. 
1511. dichrous Lec. 
1512. elevatus Lec. 
1513. ventralis Kirby. 
1514. aquiris Lec. 
1515. plicifer Lec. 
1516. consobrinus Lec. 
1517. maculiventris Lec. 
1518. canadensis Reg. 
1519. affinis Aubé. 
1520. pernitidus Lec. 
1521. analis Say. 
1522. Sayi 4406. 
1523. marinus Gl. 
opacus Sahlb. 
1524. pectoralis Lec. 
1525. impressicollis Kirby. 
ао г“ 
AMERICA. 
Cybister Curt. 
1501. 
1502. 
1508. 
1504. 
GYRINID ЛЕ. 
1526. 
924; 
1528. 
1529; 
1530. 
1531. 
Olivieri Cr. 
fimbriolatus Say. 
ellipticus Lec. 
explanatus Lec. 
gibber Lec. 
borealis Aubé. 
lugens Lec. 
рісірев Aubé. 
corpulentus Reg. 
parcus Say. 
lateralis Aubé. 
fuscipes Mots. 
Dineutes MacL. 
1532. 
1538. 
| 1534. 
1535. 
1536. 
1537. 
1538. 
| 1539. 
vittatus G'erm. 
sublineatus Chev. 
discolor Aubé. 
angustus Lec. 
serrulatus Lec. 
assimilis Awbé. 
analis Reg. 
emarginatus Say. 
earolinus Lec. 
Gyretes Brullé. 
1540. 
sinuatus Lec. 
compressus Lec. 
HYDROPHILID.E. 
Helophorus Fab. 
1541. fortis Lec. 
1542. oblongus Lec. 
1543. lacustris Lec. 
1544. obscurus Lec. 
1545. nitidulus Lec. 
1546. linearis Lec. 
? pusillus Mots. 
1547. angustulus Mann. 
granularis Mots. 
obsoletesulcatus Mots. 
lineatus Say. 
pallens Casey. 
? ventralis Mots. 
inquinatus Mann. 
auricollis Esch. 
tuberculatus Gl. 

