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New records and species of Scolytidae (Coleoptera) from Colombia
Vol 21, Page 1, Date 1961
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A NEW DACTYLIPALPUS (COLEOPTERA: SCOLYTIDAE) FROM THE PHILIPPINE ISLANDS
Vol 21, Page 8, Date 1961
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Undescribed species of western Nearctic Tipulidae (Diptera). IV
Vol 21, Page 10, Date 1961
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A CHECK-LIST OF THE SPECIES OF ELEODES AND DESCRIPTIONS OF NEW SPECIES (COLEOPTERA-TENEBRIONIDAE)
Vol 21, Page 55, Date 1961
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NEW TINGIDAE FROM SOUTH INDIA (HEMIPTERA)
Vol 21, Page 108, Date 1961
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A new species of Cinara from Colorado (Aphididae)
Vol 21, Page 17, Date 1961
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A new species of Cinara from Delaware (Aphididae)
Vol 21, Page 20, Date 1961
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Description of a new species of salamander from Panama
Vol 21, Page 23, Date 1961
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A new beetle mite from Utah (Oribatei: Gymnodamaeidae)
Vol 21, Page 27, Date 1961
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(1) Studies in nearctic desert sand dune Orthoptera. Part 3. A new species of Cibolacris from northern Chihuahua, Mexico
Vol 21, Page 29, Date 1961
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A review and key of North American Cinara (Homoptera: Aphididae) occurring on Picea
Vol 21, Page 35, Date 1961
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(2) Orthoptera studies in Nearctic desert sand dunes. Part 4. A new Trimerotropis from the dunes of eastern New Mexico
Vol 21, Page 51, Date 1961
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Undescribed species of Nearctic Tipulidae (Diptera). I
Vol 21, Page 79, Date 1961
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New species of bark beetles (Coieoptera: Scolytidae), mostly Mexican. Part 6
Vol 21, Page 87, Date 1961