Protognoriste amplicauda BLAGODEROV & GRIMALDI 2004
- Dataset
- Fossil Sciaroidea (Diptera) in Cretaceous Ambers, Exclusive of Cecidomyiidae, Sciaridae, and Keroplatidae
- Rank
- SPECIES
- Published in
- BLAGODEROV, VLADIMIR, GRIMALDI, DAVID (2004): Fossil Sciaroidea (Diptera) in Cretaceous Ambers, Exclusive of Cecidomyiidae, Sciaridae, and Keroplatidae. American Museum Novitates 3433 (1): 1-76, DOI: 10.1206/0003-0082(2004)433<0001:FSDICA>2.0.CO;2, URL: http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0082(2004)433%3C0001%3AFSDICA%3E2.0.CO%3B2
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Diadocidiidae
- genus
- Protognoriste
- species
- Protognoriste amplicauda
description
DESCRIPTION: Body length = 1.25 mm; wing length = 1.11 mm. Head: Eyes setulose, setae very short. Ocelli three, equal, almost in straight line, distance of lateral ocellus from eye margin equal to distance from mid ocellus to lateral one. Vertex and frons setose. Scape very small. Pedicel spherical, obscure. Flagellum 14 segmented, flagellomeres cylindrical, lengths about equal to widths, setose. Palpi short, 3 segmented, apical segment rounded, penultimate cylindrical, length 2 Χ the width. Face wide, quadrate. Thorax: Scutum with lateral, dorsocentral and acrostichal setae. Scutellum with several long setae. Mediotergite with short trichia. Metepisternum with anterodorsal cleft, height about equal to width. Wing membrane without macrotrichia. Costa ends beyond tip of R 5, at 1 / 6 the length between tips of R 5 and M 1. Sc short, ends free at the level of RS base. Humeral crossvein transverse. R 1 short, about 0.4 Χ wing length. R 5 about 0.8 Χ wing length, almost straight. RS base very short, transverse. Crossvein rm horizontal, meets M 3 + 4 and CuA stem, its length 3 Χ less than R 1 length. M 1 almost straight, weakened at base. M 2 and M stem absent. Base of M and CuA fork between levels of RS base and R 1 tip. CuA and M curved caudally. Legs: Coxae almost equal in length, hind coxae bare. Tibial setulae in distinct rows. Tibiae, especially fore, short. Tarsal claw with small obtuse tooth. Abdomen as long as wing, with 8 segments, se tose. Eighth segment short, retracted. Gonocoxite massive. Gonostyli straight, flattened dorsoventrally.
description
Figure 15, Plate 2 B
diagnosis
DIAGNOSIS: R 1 length 3 Χ that of rm. Gonocoxite massive. Gonostyli straight, flattened dorsoventrally.
etymology
ETYMOLOGY: The species epithet is derived from Latin words amplus meaning ‘‘ large, distinguished’ ’ and cauda meaning ‘‘ tail’ ’ in reference to large terminalia of the species.
materials_examined
MATERIAL: Holotype PIN 3426 / 257, male. Russia: Taimyr Peninsula, Nizhnyaya Agapa, coll. 1973.