Oxysarcodexia cyaniforceps ( Hall, 1933 )

Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, Zootaxa 4841 (1), pp. 1-126 : 47-48

Oxysarcodexia cyaniforceps ( Hall, 1933)

( Figs 99–101 )

Sarcophaga cyaniforceps Hall, 1933: 282 ; Panama, Barro Colorado Island . Holotype male (examined from photographs) and 18 male paratypes in AMNH.

Diagnosis. [Based on the diagnoses by Lopes (1946b, 1975c) and on photographs provided by Dr. David Grimaldi (AMNH).] Male. Length 8.0 mm. Postocular plate golden pollinosity. Thorax gray and with golden pollinosity on humeral region and laterally. Two well-differentiated posterior and 3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles absent. Abdomen grayish with pale golden pollinosity laterally on T3 and on the entire T4 and T5. T4 with median marginal bristles. ST5 reddish with a deep cleft. Cercus sinuous in lateral view, with enlarged and recurved apex. Cercus with bristles ventrally over full length. Cerci with distal third as broad as middle part in posterior view; parallel. Pregonite with expanded base, gradually narrowing to apex, which is darker than base. Postgonite with expanded base and sudden narrowing at apex, which is darker than base. Distiphallus conical, with an internal pair of spinous plates and slightly sinuous dorsal outline. Vesica symmetrical; distal lobes well developed, with 2 pairs of spinous lobes.

Remarks. The cercus of O. cyaniforceps ( Fig. 100 ) is similar in shape to that of O. chaetopygialis ( Figs 67–68 ), differing by the darker color and more pronounced apical enlargement. The vesica resembles that of O. floricola Lopes, 1975e ( Fig. 121 ), although differences are evident in the distal lobes, which are directed ventroapically with their basal portion just proximal to the tip of the distiphallus, two features not present in O. floricola . The main branch of the vesica (proximal section) is sclerotized and prominent with an angular median projection, as seen in O. laclaricola Souza & Buenaventura, 2016 ( Fig. 161 ). See also remarks under O. adunca . Female unknown.

Distribution. NEOTROPICAL. Colombia, Costa Rica, Panama.

Biology. This species has been collected in an urban area of Antioquia, Colombia, using chicken viscera as bait ( Yepes-Gaurisas et al. 2013).

Type material examined. No specimens were examined directly, but photographs of the holotype were provided by courtesy of Dr. David Grimaldi ( AMNH) .

Figures

FIGURES 99–107. Oxysarcodexia spp., males. 99–101. Oxysarcodexia cyaniforceps (Hall), holotype (Panama, Barro Colorado Island, AMNH). 99. Habitus, lateral view. 100. Terminalia, lateral view. 101. Terminalia, posterior view. 102–104. Oxysarcodexia diana (Lopes) (Colombia, Antioquia, Medellín, CE-TdeA). 102. Habitus, lateral view. 103. Terminalia, lateral view. 104. Terminalia, posterior view. 105–107. Oxysarcodexia eberti Lopes & Tibana (Brazil, Mato Grosso, Chapada dos Guimarães, MNRJ). 105. Habitus, lateral view. 106. Terminalia, lateral view. 107. Terminalia, posterior view. Figs 99–101 by D. Grimaldi (AMNH).

FIGURES 60–69. Oxysarcodexia spp., males. 60–62. Oxysarcodexia carvalhoi Lopes (Brazil, São Paulo, Campinas, LIE). 60. Habitus, lateral view. 61. Terminalia, lateral view. 62. Terminalia, posterior view. 63–65. Oxysarcodexia catica Souza & Buenaventura, holotype (Colombia, Antioquia, Medellín, Pajarito, CE-TdeA). 63. Habitus, lateral view. 64. Terminalia, lateral view. 65. Terminalia, posterior view. 66–69. Oxysarcodexia chaetopygialis (Williston) (Saint Vincent, Majorca, MNRJ and NHMD). 66. Habitus, lateral view. 67. Terminalia, lateral view, without pregonite. 68. Terminalia, lateral view, with pregonite covering the vesica. 69. Terminalia, posterior view.

FIGURES 117–122. Oxysarcodexia spp., males. 117–119. Oxysarcodexia flavipes Lopes & Tibana (Argentina, MACN). 117. Habitus, lateral view. 118. Terminalia, lateral view. 119. Terminalia, posterior view. 120–122. Oxysarcodexia floricola Lopes (Brazil, Santa Catarina, Seara, Nova Teutonia, MNRJ). 120. Habitus, lateral view. 121. Terminalia, lateral view. 122. Terminalia, posterior view. Figs 117–119 by P.R. Mulieri (MACN).

FIGURES 157–165. Oxysarcodexia spp., males. 157–159. Oxysarcodexia jamesi Dodge (Costa Rica, Guanacaste Province, MNRJ). 157. Habitus, lateral view. 158. Terminalia, lateral view. 159. Terminalia, posterior view. 160–162. Oxysarcodexia laclaricola Souza & Buenaventura, holotype (Colombia, Antioquia, Caldas, La Clara, CE-TdeA). 160. Habitus, lateral view. 161. Terminalia, lateral view. 162. Terminalia, posterior view. 163–165. Oxysarcodexia liliarum Souza & Buenaventura, holotype (Colombia, Antioquia, Caldas, La Clara, CE-TdeA). 163. Habitus, lateral view. 164. Terminalia, lateral view. 165. Terminalia, posterior view.