Floricimbex vetusculus ( Cockerell, 1922 )

Archibald, S. Bruce & Rasnitsyn, Alexandr P., 2023, Cimbicidae (Hymenoptera, ‘ Symphyta’) in the Paleogene: revision, the new subfamily Cenocimbicinae, and new taxa from the Eocene Okanagan Highlands, Zootaxa 5278 (1), pp. 1-38 : 30-31

Floricimbex vetusculus ( Cockerell, 1922)

Fig. 27 .

Cimbex vetusculus Cockerell, 1922, p. 50 .

Holotype. DMNH-163A, B , type specimen, Cockerell (1922). Part, a rather complete specimen; counterpart, missing the right wings and head.

Diagnosis. As for genus.

Description. Holotype, male. Body: length 16.7 mm as preserved, colour pattern possibly mostly dark (organic matter mostly lost, obscuring colouration). No rough surface sculpture discernible. Structure of head and thorax obscure. Mid, hind coxae touching basally, slightly separated distally, hind coxae large, elongate, more or less parallel-sided, no distinct armament visible; hind femur almost regularly elliptical, 4.4 mm long, 1.9 mm wide (length to abdominal segment width ca. 1:2.3), other leg segments incomplete. Wings damaged, incompletely known. Forewing length 13.9 mm, maximum width 4.4 mm or slightly more, length/width> 3.1; membrane possibly lightly infuscate behind R+M; pterostigma dark; R+M shorter than 1-M; maximum length of cell 2r shorter than 3r; 2r-rs slightly longer than Rs between 2r-m, 2r-rs, joining cell 3rm slightly before its middle; 2r-m straight, joins Rs distal to 2m-cu joining M, well distal 2mcu; 1-M almost straight, sub-parallel to 1m-cu; 3r-m incompletely preserved, its form obscure; cell 2mcu with M apparently subequal to 1m-cu; 2m-cu incompletely preserved, apparently slightly curved toward base; cu-a interstitial; anal cells not preserved. Hind wing with M base basal to level of Rs base, m-cu present, cu-a before middle of cell mcu, a1-a2 basal to level of Rs base, Cu with distinct free apex, 1A and 2A with long free apex. Abdomen narrow, slightly widening caudally (widest at segments 5–6), tergum 1 with straight hind margin, genitalia not distinct.

Material. Holotype.

Locality and age. Florissant Formation, Priabonian.

Figures

FIGURE 27. Floricimbex vetusculus (Cockerell) holotype, DMNH-163, Cimbicinae, from the Florissant Formation: A, photograph of the part (©DMNH); B, drawing from the part and counterpart; C, drawing of left forewing; D, drawing of right forewing; E, drawing of the left hind wing; F, drawing of the right hind wing. Scale bars A–B, 5 mm; C–F, 5 mm.