Perdita hooki Portman & Neff

Portman, Zachary M., Neff, John L. & Griswold, Terry, 2016, Taxonomic revision of Perdita subgenus Heteroperdita Timberlake (Hymenoptera: Andrenidae), with descriptions of two ant-like males, Zootaxa 4214 (1), pp. 1-97 : 50-53

publication ID	https://doi.org/ 10.11646/zootaxa.4214.1.1
publication LSID	lsid:zoobank.org:pub:9FAD41E4-36F3-4AE0-B626-6A372E894A59
DOI	https://doi.org/10.5281/zenodo.6066794
persistent identifier	https://treatment.plazi.org/id/03DA5156-6E3B-3876-FF43-FA54FF206809
treatment provided by	Plazi
scientific name	Perdita hooki Portman & Neff
status	sp. nov.

Treatment

Perdita hooki Portman & Neff View in CoL , sp. n.

Figs. 15 View FIGURE 15 D, 16D, 17E, 18E, 23G, 24H, 35, 36B, 56G, 58M–N

Diagnosis. Both sexes of P. hooki have an amber metasoma ( Figs. 15 View FIGURE 15 D, 16D). The female can be recognized by the following combination of characters: head very broad ( Fig. 18 View FIGURE 18 E), T1 with a very faint white bar medially on the posterior face, and the second medial cell present (e.g. Fig. 4 View FIGURE 4 A). The male can be distinguished by: head large and quadrate ( Fig. 17 View FIGURE 17 E), clypeus and transverse paraocular marks white or yellowish-white, mandibles bent and lacking a modified tip, and pygidial plate broadly truncate ( Fig. 23 View FIGURE 23 G).

Description of female. Length: 3.4 mm. Forewing length: 1.9 mm.

Coloration. Head ( Fig. 18 View FIGURE 18 E) and mesosoma base color black with bluish metallic luster; clypeus brown with medial white stripe which may be more or less reduced; supraclypeal mark brown; paraocular mark white, transverse, not reaching level of summit of clypeus; mandible amber, tip reddish; labrum brown; scape dark brown, more or less lightened on apex; antenna brown dorsally, tan ventrally; pronotal collar and pronotal lobe dark brown; legs dark brown except tan on anterior leg with joint of femur and tibia, anterior face of tibia, and all distal tarsi; wing veins dark brown; metasoma amber ( Fig. 16 View FIGURE 16 D), sometimes darkened to black on apical segments; T1 generally with obscure basomedial white bar; T2 fovea dark brown; pygidial plate brown.

Structure and vestiture. Head much broader than long ( Fig. 18 View FIGURE 18 E); lateral areas and circle around antennal socket covered in dense recumbent white pubescence, vertex with sparse erect pubescence; eyes parallel; facial fovea straight, parallel to eye, linear, extending from level of middle of antennal socket halfway to apex of eye; mandible simple; labrum quadrate, slightly less than 2X broader than long; disc of clypeus broader than high, convex, apically protruding 1 OD from face; lateral extension reaching 1/3 distance to base of mandible; venter of head with abundant inward-facing broadly hooked hairs; mesosoma strongly tessellate, impunctate, slightly shiny; pronotal collar slightly impressed, humeral angle weak; mesepisternum and margins of scutum sparsely covered with combination of recumbent and erect white pubescence; fore coxa and venter of mesepisternum with abundant, broadly hooked hairs; apex of mid tibia with some short, thick, curved setae; forewing with second medial cell present; metasoma suboval, wide basally, tapering apically, widest at T3 ( Fig. 16 View FIGURE 16 CD; terga tessellate and impunctate, dullish on discs; T2 fovea short, linear, slightly thickened, 1/3 length of T2; pygidial plate triangular, apex bluntly pointed ( Fig. 24 View FIGURE 24 G); hairs of prepygidial fimbria thickened, dense.

Description of male. Length: 2.8 mm. Forewing length: 1.8 mm.

Coloration. Head ( Fig. 17 View FIGURE 17 E) and mesosoma base color black with bluish or greenish metallic luster; clypeus white, sometimes with pair of vertical sublateral brown stripes; supraclypeal mark white, transverse, often reduced or absent; paraocular mark white, transverse, reaching level of summit of clypeus; mandible tan or amber, tip reddish; labrum tan or amber; scape dark brown, lightened on apical tip; antenna light brown dorsally, tan ventrally; pronotal collar brown laterally; pronotal lobe brown, slightly lightened to tan dorsally; legs dark brown except tan on anterior fore tibia, joints of tibiae and femora, and distal tarsi; wing veins dark brown; metasoma uniformly amber ( Fig. 15 View FIGURE 15 D); T2 fovea dark brown; pygidial plate amber or brown.

Structure and vestiture. Head quadrate, much broader than long ( Fig. 17 View FIGURE 17 E); face with appressed white pubescence encircling antennal base; eyes parallel; mandible simple, strongly bent medially, bend approaching 90 degree angle ( Fig. 17 View FIGURE 17 E), mandible length extending to far side of labrum in repose; labrum quadrate, 1.5X broader than long; disc of clypeus broader than high, slightly convex, apically protruding less than 1 OD from face; lateral extension reaching 1/4 distance to base of mandible; head with fine, sparse, pubescence ventrally; mesosoma strongly tessellate, impunctate, slightly shiny; pronotal collar slightly impressed, humeral angle weak; mesepisternum and margins of scutum sparsely covered with combination of recumbent and erect white pubescence; hind tibia with sparse, very short thickened hairs; metasoma broader than mesosoma, oval, wide basally, tapering apically, widest at T2/T3 ( Fig. 16 View FIGURE 16 D); terga tessellate and impunctate; T2 fovea linear, slightly thickened, 1/3 length of T2; pygidial plate broadly triangular, apex very broadly truncate ( Fig. 23 View FIGURE 23 G); hairs of prepygidial fimbria sparse and slightly thickened laterally.

Terminalia . S8 ( Fig. 56 View FIGURE 56 G) with spiculum triangular, lateral apodemes prominent, flexed upwards; apical portion moderately convex, longer than broad, sides diverging slightly before converging at apex, apex strongly folded over at a right angle dorsally with slight carina at location of fold, folded-over area with prominent rounded medial emargination apically; sparse short hairs ventrally; circle of thinned cuticle medially. Genital capsule as in Figs. 58 View FIGURE 58 M–N. Gonostyli separated dorsally by broad U-shape; lobes of gonostylus nearly equal in length, extending well below level of penis valve; dorsal lobe constricted basally, expanding apically into large, broad, rounded club, ventral lobe relatively narrow with few minute hairs on apex; volsella extending slightly beyond level of gonostylus; cuspis with multiple spicules on outer margin of apex; digitus short, narrow with single spicule apically; penis valve large and long, extending well beyond level of rest of genitalia, fused basally before splitting at level of gonostylus, apices sharply diverging and ending in relatively narrow point; endophallus with wavy internal structures, extending just beyond level of splitting of penis valve.

Floral records. Boraginaceae (11 ♂ 18 ♀): Tiquilia hispidissima 1 ♂ 1 ♀, T. mexicana 10 ♂ 17 ♀. Phenology. July to September. The limited phenology may be an artifact of the few collection events. Distribution. Chihuahuan Desert ( Fig. 36 View FIGURE 36 B), USA and Mexico.

Type material. Holotype data: ♀, TEXAS: Terrell Co.: Dryden , 8 mi SE (29.9732 -102.0173): 28 Aug 1974, G.E. Bohart, W.J. Hanson ( BBSL, accession no. 141859) . Paratype data: (14 ♂ 36 ♀) MEXICO : Coahuila: Cuatro-Cienegas Prot. Area ; Site E 3; ~ 13 km SE Cuatrocienegas; gypsum flat with sinkholes (26.87167 - 102.01813): 1 ♂ 1 ♀, 22 Jul 2010, K. Wright, Tiquilia hispidissima ( MSBA) . San Luis Potosi: Matehuala , 67 mi S (23.0595 -100.632): 1 ♂, 30 Aug 1974, G.E. Bohart, W. Hanson . TEXAS: Terrell Co.: Dryden, 16 mi N (30.25 -102.017): 1 ♀ , 9 Sep 2012, J.L. Neff, T. mexicana ; Dryden, 17 mi E (29.9038 -101.8716): 2 ♀, 22 Aug 2008, J.L. Neff, T. mexicana ; Dryden, 2 mi N (30.071 -102.104): 1 ♂ 1 ♀, 9 Sep 2012, J.L. Neff, T. mexicana ; Dryden, 20 mi E (29.9016 -101.8378): 1 ♂, 22 Aug 2008, J.L. Neff, T. mexicana ; Dryden, 24 mi E (29.9008 -101.7844): 5 ♂ 2 ♀, 15 Aug 2008, J.L. Neff, A. Hook, T. Mexicana (1 ♂ 1 ♀ at each of AMNH, TAMU; 1 ♂ at each of CAS, SEMC, USNM); 3 ♂ 7 ♀, 22 Aug 2008, J.L. Neff, T. mexicana (1 ♀ at each of CAS, SEMC, USNM; 3 ♂ 4 ♀ at CTMI); Dryden, 8 mi SE (29.9732 -102.0173): 2 ♂ 22 ♀, 28 Aug 1974, G.E. Bohart, W.J. Hanson (1 ♀ UCRC).

Additional material examined. Total specimens: 4 ♀ . TEXAS: Terrell Co.: Dryden , 16 mi N (30.25 - 102.017): 1 ♀, 9 Sep 2012, J.L. Neff, Tiquilia mexicana ; Dryden, 24 mi E (29.9008 -101.7844): 1 ♀, 15 Aug 2008, J.L. Neff, A. Hook, T. mexicana ; 2 ♀, 22 Aug 2008, J.L. Neff, T. mexicana .

Etymology. The species is named for Dr. Allan Hook, an avid student of aculeate Hymenoptera , who has collected many interesting species of Texas bees, including part of the type series of this species. Remarks. Perdita hooki is the southernmost occurring Heteroperdita, with a single male collected in San Luis Potosi.