Zagrammosoma hobbesi LaSalle

(Fig. 21)

Zagrammosoma hobbesi LaSalle, 1989: 231–236 . Holotype ♀ [examined]. Locality: USA, California, Summit Valley, 14.v.1985, G. Gordh, host plant: Eriodictyon . Depository: USNM, UCRCENT471571.

Diagnosis. The main diagnostic characters for Zagrammosoma hobbesi are the combination of an all-black body and black “tiger stripes” on the yellow face (Fig. 21A). This is very similar to Z. headricki (Fig. 19A), however, the funiculars of Z. hobbesi are both longer than wide, whereas they are both wider than long in Z. headricki . As well, the parastigmal band does not reach the cubital fold of the fore wing in Z. hobbesi (Fig. 21C).

Description. Female - body length 1.37–2.9 mm. Metallic luster on body absent. Scape yellow with black stripe dorsally. Lower face with dark median band. Vertex with 2 stripes above compound eye. Gena dark, with yellow spot at ventral margin. Occiput black with median yellow stripe. Pronotum black; no stripes laterally. Mesoscutum black. Propodeum black. Procoxa, mesocoxa, and metacoxa dark. Profemur and mesofemur yellow. Metafemur yellow with dark banding encircling femur. Fore wing: basal band absent; cubital band absent; parastigmal, stigmal, and postmarginal bands present, with perpendicular extension greater than that of stigmal apex; connections from parastigmal band to stigmal band, and from stigmal band to postmarginal band absent. Hind wing hyaline. Gaster dark.

Upper ocular sulcus present. Pedicel longer than wide. Funiculars symmetrical: first longer than wide (w:l = 0.61–0.73); second longer than wide (w:l = 0.88–0.93).

Pronotum, in dorsal view, bell-shaped (w:l = 1.61–1.8); 3–4 pairs of setae along posterior margin. Mesoscutum reticulate; small, scattered setae absent; intermediate setae present. Mesoscutellum subequal or wider than long (w:l = 1.0–1.14); submedian grooves present. Hind tibial spur distinctly shorter than basitarsus. Hind basitarsus subequal in length to 2 nd tarsomere (bst:2 nd = 1.0).

Fore wing l:w = 2.44–2.47. Submarginal vein with 5–8 setae dorsally. Basal fold setose. Cubital fold setose. Admarginal setae present. Uncus originating on stigma by more than own length from stigmal apex.

Male - as female, except: body length 1.11–1.5 mm; gaster black or with faint yellow medially (Fig. 21E).

Remarks. This is a commonly collected species in the mountains in San Bernardino County, California, and should be easily distinguished from the other species of Zagrammosoma by the wing patterns and face markings.

Hosts. Reared from lepidopteran leaf miners. See Table 3. Lepidoptera: Gelechiidae .

Distribution. Nearctic: USA (CA) (Fig. 22).

Etymology. Named after the tiger “Hobbes” from the Calvin & Hobbes comic, as this species has yellow and black stripes on the face, similar to a tiger.

Type material examined. Paratypes: USA: California: San Bernardino Co., Mojave River Forks ~ 9 mi. S. Hesperia, 966m, 34°19’51”N, 117°15’48”W, 2.v.1985, J. D. Pinto [5♁ 5♀, ANIC: UCRCENT238204–238209, BMNH: NHMUK10370160, 10370166, CNC: CNC 508713, 508714]. Summit Valley, 1040m, 34°19’14”N, 117°23’2”W, 14.v.1985, G. Gordh, host plant: Eriodictyon sp. [3♁ 9♀, UCRC: UCRCENT312253–312264]. Summit Valley, 1040m, 34°19’14”N, 117°23’2”W, 14.v.1985, G. Gordh, host plant: Haplopappus sp. [3♁ 9♀, UCRC: UCRCENT312253–312264]. Summit Valley, 1040m, 34°19’14”N, 117°23’4”W, 14.v.1985, G. Gordh [3♀, USNM: UCRCENT425340–425342]. Verdemont, 544m, 34°11’50”N, 117°21’10”W, 25.iv.1946, A.L. Melander, host: Coelopoeta sp., host plant: Phacelia sp. [1?, USNM: UCRCENT425345]. Sonoma Co., 1 mi. SE Bodega Bay, 14m, 38°19’20”N, 123°02’9”W, 20.v.1983, D. L. Wagner, JAP No. 83D109, host: Coelopoeta sp., host plant: Phacelia sp. [3♀, USNM: UCRCENT425343, 425344, 425428].

Additional material examined. USA: California: San Bernardino Co., Hwy 138 (hydro line), 1015m, 34°19’22”N, 117°27’26”W, 3.v.2013, Heraty & Herreid, Chapparal, swp, H13-021[1♀, UCRC: UCRCENT 485243]. Jct. 138 & Lone Pine Canyon rd., 1002m, 34°18’57”N, 117°29’43”W, 18.v.2008, D. Yanega [1♀, UCRC: UCRCENT226454]. Mill Creek Cyn. X Hwy 38 & Forest Falls turnoff, 1400m, 34°05’45”N, 116°57’11”W, 8.v.1996, M. Gates, host plant: Eriodictyon trichocalyx [1♀, UCRC: UCRCENT414305]. Mojave River Forks ~ 9 mi. S. Hesperia, 966m, 34°19’51”N, 117°15’48”W, 2.v.1985, J. D. Pinto [1♁, ANIC: UCRCENT238210]. Mormon Rocks, Hwy 138, 1034m, 34°19’10”N, 117°30’16”W, 8.v.2013, R. K. Perry, sweep [1♁ 3♀, UCRC: UCRCENT395931 (D3703)]. San Bernardino Natl. Forest, 985m, 34°06’2”N, 117°01’29”W, 7.iv.2014, R. K. Perry, sweep, RP14/005 [1♀, UCRC: UCRCENT414594 (D4000), 485240 – 485242] .