Blacus (Ganychorus) julianae Sánchez et Figueroa, 2010

Sánchez-García, José Antonio, Wharton, Robert Alan, Romero-Napoles, Jesús, Figueroa, José Isaac, López-Martínez, Víctor, Martínez, Ana Mabel, Pérez-Pacheco, Rafael & Pineda, Samuel, 2010, Four new species of Blacus Nees (Hymenoptera, Braconidae, Blacinae) from Mexico, Zootaxa 2641, pp. 37-46 : 42-43

Blacus (Ganychorus) julianae Sánchez et Figueroa , new species

( Figs 3 a–i)

Description. MALE. Body length: 2.13 mm. Color: black; pedicel, basal flagellomeres, most of mandible, labrum, coxa, trochanter and basal part of femur yellowish; palpi yellowish white; scape, penultimate and ultimate segment of antenna, apical part of mandible, apical part of hind femur and its telotarsus dark brown; rest of antenna, apical part of fore and middle femur yellowish brown; metasoma (except first tergite that is black) clear brown; parastigma whitish and pterostigma mostly brown with a little whitish at the ends.

Head: ovoid; vertex not convex; 21 antennal segments, third segment 1.25X longer than fourth, length of third, fourth and penultimate segment 6.63, 5.33 and 2.00X their width, respectively; last antennal segment without fusion of two segments; eye length 1.00X longer than temple; maximum width of head 1.48X its minimum width (dorsal view); area in front of occipital carina crenulate; frontal suture superficial; malar suture absent; malar space longer than other species described here, 3.4X longer than basal width of mandible; vertex smooth with some isolated setae; face elongated with some setae. Mesosoma: mesosoma length 1.37X its height; side of pronotum reticulate rugose; posterior margin of epicnemial carina crenulate; epicnemial area superficially microstriate; precoxal sulcus rugose; metapleural flange medium size and truncated; notauli narrow, anteriorly crenulate and posteriorly smooth; mesoscutal lobes smooth, slightly convex; scutellum largely smooth with some wrinkles, lateral carina distinct, slightly projecting apically; propodeal tubercles absent; propodeum reticulate rugose but with median and lateral carinae distinct. Wings: forewing with parastigma small; r inclivous; 3RS nearly straight; 1CUa 0.67X as long as 1CUb; r 0.12X as long as 3RS; 3RS 4.0X as long as 2RS; first discal cell not truncated anteriorly; forewing length 1.92 mm; hind wing with vein cu-a present. Legs: length of femur, tibia and basitarsus of hind leg 6.7, 16.0, and 10.0X their width, respectively; tibia longer than B. ruficornis and B. basitarsis ; hind coxa dorsally rugose; arolia small. Metasoma: Length of first tergite 2.13X its apical width, superficially striate-rugose, dorsal carinae distinct throughout its length, spiracle slightly projecting. Genitalia: aedeagus elongated, with two apical lobes wider, bordered by a pavilion and flange, with a medial deep channel and apical pits; gonoforceps curved and pointed at its apex, with setae only at middle and apex; digitus with three teeth; cuspis swollen, lamina volsellaris with six setae.

FEMALE. Similar to male, except mesoscutal lobes with coloration black to redish brown; fore leg with large black bristles in tarsal claws; tarsal claw of middle and hind legs with small, brown bristles; 20 antennal segments; ovipositor sheath 0.15–0.20X longer than forewing length.

Hosts. Unknown.

Material examined. Holotype ɗ MEXICO, Michoacán, Charo. Parque Insurgente José María Morelos y Pavón, 19-X-2007, 19°39’722’’N and 100°00’555”W, 2114 msnm, L.D. Esquivel, yellow pan trap. Allotype Ψ MEXICO, Michoacán, Charo. Cerro de Garnica, 12-X-2009, 19°40’002’’N and 100°49’640’’W, 2918 msnm, yellow pan trap, A. Mejía R. and J.I. Figueroa. Paratypes: Michoacán: Charo: Cerro de Garnica, 1 ɗ, 8-XI-2008, 1 Ψ 4-X-2008, 19°40’028’’N and 100°49’682’’W, 2938 msnm, 2 Ψ 8-XI-2008, 19°39’946’’N and 100°49’640’’W, 2967 and 2951 msnm, yellow pan trap, L. Flores E. and J.I. Figueroa; 2 Ψ 12-X-2009, 5 Ψ 15- III-2010, 1 ɗ, 1 Ψ 24-II-2010, 2 Ψ 14-XI-2009, 1 Ψ 15-VIII-2009, 19°40’002’’N and 100°49’640’’W, 2918 msnm, yellow pan trap, A. Mejía R. and J.I. Figueroa. Ciudad Hidalgo: Area Los Azufres, 13-IX-2008, 2 Ψ 19°45’471’’N and 100°41’339’’W, 2561 msnm, 1 Ψ 19°45’519’’N and 100°41’378’’W, 2548 msnm, 1 ɗ 19°45’496’’N and 100°41’354’’W, 2572 msnm, 1 ɗ 19°45’449’’N and 100°41’305’’W, 2592 msnm, yellow pan trap, L. Flores and J.I. Figueroa; 1 ɗ 12-X-2009, 1 Ψ 14-XI-2009, 1 Ψ 14-IX-2009, 19°45’474’’N and 100°41’336’’W, 2607 msnm, yellow pan trap, A. Mejía R. and J.I. Figueroa. Holotype and allotype deposited in IIAF-UMSNH. Paratypes deposited in IIAF-UMSNH, JAS, TAMU and USNM.

Etymology. This species is named in honor of Juliana Vanessa Sánchez Figueroa, daughter of the first author.

Distribution records. MEXICO (Michoacán).

Comments. This species is similar B. basitarsis sp. nov. but malar space is longer in B. julianae , 3.4X its basal width of mandible while B. basitarsis is 1.33–1.75X. Other remarks see modified couplets under B. basitarsis .

Figures

FIGURE 3. Blacus julianae sp. nov. a. male habitus; b. male: anterior view of head; c. male: dorsal view of head; d. male: lateral view of mesosoma; e. female: dorsal view of mesosoma; f. male: dorsal view of propodeum and first tergite; g. male wings; h. female: ovipositor; i. male genitalia.