The New World ant parasitoid genus Orasema (Hymenoptera: Eucharitidae) Author Baker, Austin J. Author Heraty, John M. text Zootaxa 2020 2020-11-30 4888 1 1 84 journal article 9442 10.11646/zootaxa.4888.1.1 da69a4c8-2962-4d6d-9abf-627b77bb9116 1175-5326 4297699 574A35A5-A551-4A7E-B2BC-481D703B1BE7 Orasema castilloae n. sp. urn:lsid:zoobank.org:act: E12466D7-7159-4E78-8DA5-9C0A9FAF5198 ( Fig. 18 ) Diagnosis. This species is distinguished from O. tolteca by features given in the key. Description. Female. Length 2.8–5.2 mm ( Fig. 18A ). Color. Head and mesosoma iridescent blue-green. Scape yellow to partially brown with iridescence; pedicel and anellus brown. Femora dark brown with iridescence on basal two-thirds, fading to yellow on distal third. Gaster dark brown with strong green-blue iridescence. Head ( Fig. 18B ). HW:HH = 1.1–1.4; IOD:EH = 1.8–2.1; MS:EH = 1.0–1.5. Labrum with 4 digits. FL:HH = 1.2–1.5; F2L:F2W = 1.2–1.5, F2L:F3L = 1.0–1.4 ( Fig. 18D ). Mesosoma ( Fig. 18C, F ). ML:MH = 1.0–1.2. Axilla rugose; axillular sulcus weak and foveate; axillula areolate to areolate-reticulate. Propodeal disc areolate ( Fig. 18G ); callus areolate-reticulate. Propleuron rugose-reticulate. Upper mesepimeron reticulate. HCL:HCW = 1.4–1.8; HFL:HFW = 4.8–6.3. FWL:FWW = 2.2–2.6, FWL:ML = 2.1–2.4. Metasoma. PTL:PTW = 1.1–1.9, PTL:HCL = 0.6–1.2, reticulate, ventral sulcus absent. Ovipositor with second (dorsal) valvula with 6 or 7 annuli that are narrowly separated dorsally, the carinae coalescing. Male. Length 3.6–4.0 mm. HW:HH = 1.2–1.3. FL:HH = 1.8–2.0, F2L:F2W = 1.6–2.0 ( Fig. 18E ). Femora dark brown medially, tips yellow. PTL:PTW = 4.2–6.5, PTL:HCL = 2.0–2.2. Hosts. Unknown. Plant associates. Observed ovipositing in Baccharis salicifolia (Ruiz & Pav.) Pers. (Asteraceae) . Swept from desert willow ( Chilopsis linearis (Cav.) Sweet ; Bignoniaceae ), Gossypium thurberi Tod. (Malvaceae) , and Phacelia sp. ( Boraginaceae ). Distribution ( Fig. 17 ). Mexico : SO; United States : AZ. Collected April–September. Material examined. Holotype . UNITED STATES . Arizona : Santa Cruz Co. , Flux Canyon Rd , 1445m , 31°29’46”N , 110°45’32”W , 12.viii.2014 , Paul Masonick, oak savannah, swp, H14-100 [ ♀ , deposited in UCRC: UCRCENT00412574] . Paratypes . MEXICO . Sonora : Nogales POE, 31 ° 19’48”N , 110 ° 56’24”W , 7.iv.1968 , A. Kumlin , on vegetables [ 1♀ , USNM: UCRCENT00416870]. 20 mi. S. Estacion Llano , 30°04’19”N , 111°06’12”W , 17.viii.1964 , M.E. Irwin [ 1♀ , UCRC: UCRCENT00413311] . UNITED STATES . Arizona : 1856, C.F. Baker [1³ 1♀ , USNM: UCRCENT00416866, UCRCENT00416869]. Cochise Co. , 6 mi. W. of Montezuma Ps., Huachuca Mts. , 31 ° 20’24”N , 110 ° 22’48”W , 19.viii.1940 , J.J.DuBois [ 1♀ , EMEC :UCRCENT00404902].Bisbee(1429 Franklin St. ), 31 ° 24’26”N , 109 ° 55’59”W , 16.vii.1995 , A.S. & N. Menke [ 1♀ , USNM : UCRCENT00416662]. Douglas, 1188m , 31 ° 20’40”N , 109 ° 32’43”W , 29.vii.1946 , H.A.Scullen [ 1♀ ,ORSU:UCRCENT00403960].Harshaw Ck, 31 ° 29’37”N , 110 ° 41’0”W , 18.viii.1999 , J. George , ovipositing in Baccharis salicifolia [ 2♀ , UCRC : UCRCENT00175176, UCRCENT00278220]. Gila Co. , Globe, 1188m , 33 ° 23’38”N , 110 ° 47’14”W , 6.viii.1946 , H.A. Scullen [ 1♀ , ORSU: UCRCENT00403959]; vii.1930 , Parker [1³ 2♀ , MCZ : UCRCENT00318643–44, CASC : UCRCENT00417524]; 10.ix.1917 , C.H.T. Townsend , on Thurberia thespesioides [ 1♀ , USNM : UCRCENT00416868]; 13.ix.1945 , R.A. Flock [ 1♀ , UCRC: UCRCENT00413316]. Six Shooter Canyon , nr. Globe , 33 ° 22’51”N , 110 ° 46’12”W , 17.viii.1958 , R.L. Westcott [ 1♀ , LACM : UCRCENT00305151]. Graham Co. , Pinal Mts. , 32 ° 42’3”N , 109 ° 52’18”W , 3.vii.1932 [ 1♀ , UCRC : UCRCENT00413317]. Maricopa Co. , Canon L., 33 ° 32’24”N , 111 ° 26’24”W , 1933, Parker [1?, CASC: UCRCENT00417398]. Baboquivari Mts. , Elkhorn Ranch , 31 ° 47’24”N , 111 ° 34’12”W , 21.iv.1962 , M.L. Noller , on Phacelia [ 1♀ , UAZ: UCRCENT00403767]. Continental , 31 ° 51’0”N , 110 ° 58’12”W , 14.vi.1955 , G.D. Butler , desert willow [ 1♀ , UAZ: UCRCENT00403766]. Organ Pipe Cactus Nat. Mon. , 32 ° 05’15”N , 112 ° 54’21”W , 6.viii.1955 , G.D. Butler & F.G. Werner [ 1♀ , UAZ: UCRCENT00403783]. Sycamore Cn. , nr. Ruby , 31 ° 55’12”N , 110 ° 47’24”W , 16-17.viii.1961 , Werner and Bequaert [ 1♀ , UAZ: UCRCENT00403774]. Pima Co. , Tucson , 32 ° 13’12”N , 110 ° 55’48”W , 28.iv.1940 , S.L. Green [ 1♀ , UAZ: UCRCENT00403764]; 24.iv.1940 [ 1♀ , UAZ: UCRCENT00403770]; 745m , 11.viii.1924 , E.P. Van Duzee [ 1♀ , CASC: UCRCENT00417399]; v.1960 , F.G. Wer-ner [ 1♀ , UAZ: UCRCENT00403775]; Wickham [1³, USNM: UCRCENT00416867]. Pinal Co. , Vic. Mammoth , 1005m , 32°43’21”N , 110°38’26”W , 9.viii.1977 , Olson and Hetz [ 1♀ , UAZ: UCRCENT00403773]. Santa Cruz Co. , 12 mi. E. Nogales , 31 ° 20’24”N , 110 ° 43’48”W , 1.viii.1961 , Werner and Nutting [ 1♀ , UAZ: UCRCENT00403771]. Apache Rd , 1623m , 31°25’34”N , 110°41’48”W , 13.viii.2014 , J.Heraty , meadow, swp, H14-102 [ 2♀ , UCRC: UCRCENT00412584, UCRCENT00412674]. Harshaw Creek ~ 7mi. SE Patagonia , 31 ° 31’3”N , 110 ° 41’36”W , 5.vii.1996 , Carey [ 1♀ , USNM: UCRCENT00416655]. Nogales , 1183m , 31 ° 20’25”N , 110 ° 56’3”W , 16.viii.1968 , R.M. Bohart [ 1♀ , UCDC: UCRCENT00415615]; 28.viii.1982 , J. LaSalle [ 1♀ , CNC: UCRCENT00505429]. Pa-tagonia Mtns. ~ 4 mi. S.E. Patagonia Harshaw , 31 ° 31’2”N , 110 ° 41’36”W , 23.vii.2000 , J. George [ 2♀ , UCRC: UCRCENT00414045–46]; Harshaw Ck ~ 7mi. SE Patagonia , 17.viii.1999 , M. Gates & J. George , Baccharis salicifolia , sweep [1³ 1♀ 2?, USNM: UCRCENT00248215–16, UCRCENT00248263, UCRCENT00416634]. Patagonia Mts. , Summit , Lochiel Rd. , Sta , 31 ° 21’0”N , 110 ° 25’48”W , 5.ix.1964 , F. Werner [ 1♀ , UAZ: UCRCENT00403765]. Patagonia , 31 ° 32’24”N , 110 ° 45’36”W , 26.vii.1962 , Noller [ 1♀ , UAZ: UCRCENT00403768]; Werner , Bequae-rt, and Noller [ 1♀ , UAZ: UCRCENT00403772]. Sycamore Cyn. , Hank and Yank Spr. , 1280m , 31 ° 55’12”N , 110 ° 47’24”W , 7-8.viii.1982 , G. Gibson [1³, TAMU: UCRCENT00243185] . FIGURE 18 . Orasema castilloae . Holotype female (UCRCENT00412574): A , habitus, lateral; B , head, anterior; C , mesosoma, lateral, arrow indicating presence of anterior prepectal carina; D , antenna; F , mesosoma, dorsal; G , propodeum, posterior. Paratype male (UCRCENT00416866): E , antenna. Etymology. Named in honor of Stephanie Castillo, a fellow entomology graduate student.