. Bulletin - United States National Museum. Science. 132 U. S. NATIONAL MUSEUM BULLETIN 2 09 4. Frons, pronotum, and mesoscutum with dense appressed pubescence, the individual hairs long enough and close enough to overlap considerably. Subspecies of brevis 5 Frons, pronotum, and mesoscutum with a sparse appressed pubescence, the individual hairs not long nor dense enough to overlap much 7 5. Metapleuron and propodeum partly or mostly polished or subpolished; punc- tures on propodeum separated by at least twice their diameter on a large portion of propodeum 3a. brevis recalvus, new subspecies M
. Bulletin - United States National Museum. Science. 132 U. S. NATIONAL MUSEUM BULLETIN 2 09 4. Frons, pronotum, and mesoscutum with dense appressed pubescence, the individual hairs long enough and close enough to overlap considerably. Subspecies of brevis 5 Frons, pronotum, and mesoscutum with a sparse appressed pubescence, the individual hairs not long nor dense enough to overlap much 7 5. Metapleuron and propodeum partly or mostly polished or subpolished; punc- tures on propodeum separated by at least twice their diameter on a large portion of propodeum 3a. brevis recalvus, new subspecies Metapleuron and propodeum entirely mat; punctures on propodeum separated by less than twice their diameter, except sometimes in a narrow area adjacent to the metapleuron 6 6. Head, body, and legs entirely or mostly blackish; range: AUeghenian and Carolinian faunas 3b. brevis brevis (Cresson) Head, body, and legs ocherous; range: Austroriparian fauna. 3c. brevis ochreus, new subspecies 7. Hairs on propodeum and first tergite moderately dense, their bases separated from one another by about their length; fore wing about mm. long. 1. pygmaeus, new species Hairs on propodeum and first tergite very sparse, their bases separated from one another by several times their length; forewing about mm. long. 2. paludis, new species BREVIS GROUP Frons and top part of pronotum with dense, appressed pubescence in addition to sparser suberect setae; microtrichia on forewing little larger and hardly denser in the transverse fuscous bands than between and basad of the bands. The Neotropical Dipogon ariel Banks 1946 and Dipogon alastor Banks 1946 and all the Nearctic species but graenicheri belong to this group. 1. Dipogon {Dipogon) pygmaeus, new species Male: Unknown. Female: Forewing mm. long; frons, upper part of pronotum, and mesoscutum mat, without noticeable punctures, with appressed. Figure 70.—Locality for Dipogon Please note that these images are extracted from scan
Size: 1830px × 1365px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
