Aphanogmus albicoxalis Evans and Dessart, 2005

Evans, Gregory A., Dessart, Paul & Glenn, Holly, 2005, Two new species of Aphanogmus (Hymenoptera: Ceraphronidae) of economic importance reared from Cybocephalus nipponicus (Coleoptera: Cybocephalidae), Zootaxa 1018 (1), pp. 47-54 : 49-51

Aphanogmus albicoxalis Evans and Dessart , n. sp.

( Figs. 1–6 ).

Diagnosis

Aphanogmus albicoxalis n. sp. is placed in the fumipennis group based on the presence of a longitudinal mesoscutal furrow and basal carina on the first gastral tergite. It differs from other species in the genus by its white hind coxae; no other species in this genus are known to have white or clear hind coxae, although species with similarly colored hind coxae are known in other genera of the superfamily. A. albicoxalis also differs from other species of the fumipennis group by having a subapical carina that connects the lateral carinae of the scutellum ( Fig. 2 ). Certain species in the fumipennis group have the lateral carina ending in an ellipse, but in A. albicoxalis it is separated from the peripheral carina.

Description

Holotype female ( Figs. 1–4 ).

Color: Body dark brown to black, gaster usually slightly lighter than head and thorax; antennal scape light brownish yellow; pedicel and flagellum dark brown; legs light brown, except white hind coxae and fore and middle tibiae which are relatively darker brown; wings hyaline, slightly infuscate basally on the posterior margin.

Body. Length: 1420 m. Head length/width/height 255/415/375; eye­torulus: 80; eye length/width: 260/200; DFIm (minimal interocular facial distance) 40–42% of the head width; preoccipital lunule limited anteriorly by a sharp edge, well separated from the posterior ocelli, and laterally fusing with the orbits; preoccipital furrow linear, surpassing the anterior edge, and not terminating in the intraocellar pit; ocellar triangle almost a right angle, POL/ LOL/OOL measurements: 135(60)/80(40)/45, where the maximum distance is the first number, followed by the minimal distance in parentheses; LOL slightly longer than the axis of the posterior ocellus; posterior ocelli flanked with a very narrow external lunule, anterior ocellus preceded by a large pit with a cover over the pit that is observed using diffused light.

Antenna ( Fig. 4 ). Length/width ratios: scape (233/55), pedicel (82/33), F1 (33/27), F2 (36/27), F3 (33/38), F4 (33/44), F5 (27/49), F6 (47/52), F7 (47/49); club, 3­segmented (110/55).

Mesosoma ( Figs. 2 & 3 ). Longitudinal mesoscutal furrow present; posterior margin unarmed, without spurs and with transverse carina slightly extending beyond scutellar apex; (length/width/height): 480/320/455; mesoscutum (length/width): 180/415; axilla (length): 40; scutellum (length/width) 195/145, very convex with lateral carinae joining separately the peripheral margin of the scutellum before its apex, but interconnected sub­ apically by a thin transverse carina, which may give the impression that the lateral carinae end in preapical ellipse; metanotum (length at center) 10; propodeum (length at center of dorsum): 15; mesepimeron, side of pronotum clearly depressed anteriorly, alutaceous behind the furrow, without the hind branch or forming a "Y" and practically bent at right angle; mesopleuron and metapleuron fused (without mesopleuro­metapleural furrow), upper part covered with fine striae, interspersed with fine reticulations; mesopleuron with an smooth area adjacent to carina which separates it from the venter.

Fore wing ( Fig. 1 ). Length (877), width (274), disc length (329), width 0.84x disc length, stigmal vein elongate (170), marginal vein divided, distal part (110) shorter than basal part (206) and costal cell (234); submarginal vein with 6 setae; marginal vein with 12 + 6 setae along the anterior margin; wing with uniformly spaced long setae; longest seta of marginal fringe (27), 0.1x forewing width.

Metasoma ( Fig. 3 ). Length/width/breadth: 680/320/185; large tergite (T3): 365 slightly over half gastral length), with basal carina present.

Allotype male ( Figs. 5–6 ).

Similar to female in coloration and structure, except antennae entirely yellowish brown and generally body smaller in size. Length/width measurements of antennal segments ( Fig. 6 ): scape (241/58), pedicel (82/44), F1 (132/41), F2 (101/44), F3 (93/41), F4 (96/47), F5 (96/47), F6 (99/55), F7 (96/58), F8 (93/55); F9 (club), 1­segmented (145/41); genitalia shown in Fig 5 .

Specimens examined and deposition

Holotype female (on card), USA: Florida, Miami­Dade County, Homestead, 13.ii.1998, Holly Glenn, Cybocephalus nipponicus feeding on Aulacaspis yasumatsui on Cycas revoluta , deposited in the United States National Museum of Natural History, Washington, DC, USA (USNM). Paratypes (2 females and 3 males on microscope slides, 20 females and 15 males on cards, same data as holotype, deposited in the USNM and in the Florida State Collection of Arthropods, Gainesville, Florida, USA.

Etymology This species is named for its white coxae.

Discussion

This species was reared from Cybocephalus nipponicus released in Homestead, Florida and is presumed to be a species native to Florida.

Figures

FIGURES 1–6. Aphanogmus albicoxae 1) female forewing, 2) female mesosoma 3) female habitus, 5) female antenna, 5) male genitalia, 6) male antenna.