Cremnops shenefelti Marsh

[Plate 23, Figs A–I]

Cremnops shenefelti Marsh, 1961 . Male.

Diagnosis. This species is distinguished by a broad femur, many hind tibial spines (8–15), mandible with a long apical tooth, and weak scutal flange.

Description. Holotype: male. Body length 7 mm (6–8 mm).

Head (Figs C & F). Thirty-six (35–39) flagellomeres. Lateral carina of frons strong, ending immediately anteriad lateral ocellus. Interocellar space not elevated, level with lateral ocelli. Malar space 1.0x (0.7–1.1x) eye height. Mandible with a slight basal projection, but without a distinct basal lobe.

Mesosoma (Figs D, E & H). Subpronopes adjacent, separated by a partition wider than the longitudinal length of the dorsomedial portion of pronotum. Median mesonotal lobe not depressed medially. Notaulus smooth. Scutellar sulcus with 3 (1–3) longitudinal carinae. Hind margin of posterolateral scutal flange not prominent; rather: 90° to obtuse (to lobed). Mesoscutellar trough with longitudinal carinae laterally. Metanotal trough without extensive longitudinal carinae laterally. Sternaulus with 3 (2–4) pits (often weak and merging into one or two elongate grooves); about 1/ 2x (1/3–1/ 2x) length of mesopleuron. Discrimen foveolate (to smooth). Medial propodeal areola with 3 (3–4) transverse carinae. Metapleuron rugose on ventral 1/3.

Hind leg (Fig. I). Femur length about 2.5x width. Trochantellar carina absent. Distal tibia with 13 (8–15) spines. Inner tooth of inner and outer claws asymmetrical, broad, angled quadrangular-shaped.

Fore wing (Fig. G). Hyaline with melanic tint; veins melanic; stigma melanic. 2nd submarginal cell about as high as wide. Hyaline spot in anterior part of 1st submarginal cell and basal part of 2nd discal cell.

Metasoma (Figs A & B). 1st median tergite length about 1.5x apical width, apical width about 2x basal width.

Body Color Orange, except black as follows: head, pronotum, propleuron, ventral 2/3 of mesopleuron, fore and mid leg, hind trochanter, trochantellus, tibia, and tarsus.

Biology. Host —Unknown.

Adults Collected —March, June & July.

Geographic Range —CA, NV, and one specimen from TX. See map in Appendix II.

Comments. This species resembles C. haematodes and C. californicus, but can be differentiated by the upcurved sternaulus (as opposed to straight), mandible with only a slight basal lobe (instead of distinct), and broad hind femur (1.5–2.0x instead of 3.0–4.0x width).

Etymology. Named for Roy D. Shenefelt, Professor of Entomology at the University of Wisconsin (Marsh 1961).

Material examined. HOLOTYPE: Cremnops shenefelti, male, Kyle Cn, Charleston Mts. Nevada, vi-4 –194, Type No. 6901, (CAS) (H8921). Paratype, male, Kyle Cn, Charleston Mts. Nevada, vi-3 –194, (CNC). Non-Types: 2 (ESSIG), 2 (FSCA), 1 (UCDC), 1 (UAIC). For holotype and additional images see Appendix VIII.