Eupelmus (Episolindelia) grisselli, Gibson, 2011

Gibson, Gary A. P., 2011, 2951, Zootaxa 2951, pp. 1-97 : 14

3. Eupelmus (Episolindelia) grisselli n. sp.

Fig. 2; Map 3

Type material. HOLOTYPE (♀, USNM). USA: ARIZONA: Cochise Co., Carr Canyon (1 mi. W. State Hwy 92) near Nicksville, 31.VIII.1991 / E.E. Grissell, R.F. Denno sweeping Juniperus / CNC Photo 2010-6 / Holotype Eupelmus (Episolindelia) grisselli Gibson. [Condition: point-mounted; entire except for left mesotarsus, mesonotum arched, and gaster abnormally inflated as result of critical-point drying.]

PARATYPE. USA. NEW MEXICO: Grant Co., Silver City , 8 mi. E., 22.VIII.71, Juniperus, E.E. Grissell & R.F. Denno (1♀ UCDC, CNC Photo 2010-52).

Etymology. Named in honour of Dr. Eric Grissell for his many contributions to the taxonomy and systematics of Chalcidoidea.

Description. FEMALE (Fig. 2). Length about 1.5 mm. Head capsule brown to reddish-bronze, sometimes with limited, slightly greenish lusters under some angles of light; maxillary and labial palpi white. Antenna dark brown except fl1, pedicel, and about basal half of scape yellowish-white. Mesosoma similar in color to head, with protuberant part of dorsellum yellowish-hyaline. Front and middle legs brown except trochanters, trochantelli, knees, apices of tibiae, and basal 4 tarsomeres yellowish. Hind leg entirely yellow beyond coxa except sometimes for apical tarsomere. Gaster yellow; ovipositor sheath mostly yellow but narrowly brownish basally and apically.

Head with very fine meshlike sculpture on frons, the sculpture somewhat more distinctly reticulate within scrobal depression; IOD = 0.55−0.65× head width; OOL: POL: LOL: MPOD = 1.7−1.8: 3.0−3.4: 1.5−1.8: 1.0. Antenna with flagellum short-clavate, combined length of pedicel + flagellum subequal to width of head, fl1 ringlike and other funiculars at least slightly transverse or at most fl4–fl6 quadrate, but funiculars increasing in width to broad clava such that pedicel almost as long as fl1−fl4 and clava about two-thirds to three-quarters length of funicle and about 2.3× as long as wide (when not collapsed and unnaturally compressed). Mesoscutum meshlike reticulate medially, the sculpture becoming more shallowly coriaceous-reticulate dorsolongitudinally on lateral lobes; scutellar-axillar complex meshlike reticulate with somewhat smaller cells than on mesoscutum medially. Acropleuron finely but quite distinctly meshlike reticulate, the sculpture minute mesally compared to much larger isodiametric cells posteriorly and anteriorly. Forewing setose except for short linea calva; mv about 1.5−1.8× length of pmv and 2.4−2.8× length of stv; pmv about 1.4−1.8× length of stv. Mesotibia apparently without apical pegs; mesotarsus ventrally with unobvious yellowish pegs, the pegs possibly in more than one row on basitarsus but in single row on second tarsomere. Propodeum with plical region U-like linear behind dorsellum. Ovipositor sheaths about onethird to one-half as long as gaster and about 1.0−1.3× as long as mv.

MALE. Unknown.

Distribution. Known only from Arizona and New Mexico (Map 3).

Biology. Unknown.

Remarks. Antennal structure of E. grisselli is very similar to that of E. varicauda . The only two known females likely are insufficient to encompass true variation in the ratios given in the description, including that of ovipositor sheath length.