Crossopalpus pennescens ( Melander, 1918 ),

Freitas-Silva, Rafael A. P. & Ale-Rocha, Rosaly, 2019, New South American species of Crossopalpus Bigot (Diptera: Hybotidae: Tachydromiinae), including biogeographical insights and a reinterpretation of female abdominal tergite 10 in Drapetidini, Zootaxa 4559 (1), pp. 111-135: 123-125

publication ID

https://doi.org/10.11646/zootaxa.4559.1.4

publication LSID

lsid:zoobank.org:pub:F2186E8E-E924-4259-AD0D-3AE5FE55C6DA

persistent identifier

http://treatment.plazi.org/id/941D87B9-3E2A-C344-FF24-F99C020031C6

treatment provided by

Plazi

scientific name

Crossopalpus pennescens ( Melander, 1918 )
status

 

Crossopalpus pennescens ( Melander, 1918) 

( Figs 16–19View FIGURES 16–19, 36View FIGURE 36)

Drapetis (Eudrapetis) pennescens Melander, 1918: 202  ; 1928: 311 (list).

Drapetis (Crossopalpus) pennescens: Smith, 1967: 3  (cat.).

Crossopalpus pennescens: Yang et al., 2007: 362  (cat.); Raffone, 2012: 98 (record for Bolivia).

Diagnosis. Black species with femora dark brown, except fore femur with base and apex dark yellow, and mid femur with apex brownish-yellow, tibiae brownish-yellow except base of tibia dark-yellow. Antenna dark brown. Head covered with pale yellow tomentum, shiny only on ocellar triangle, patch of tomentum on vertex absent. Acrostichal and dorsocentral bristles numerous, indistinguishable, all series complete. Wing with R 4+5 and M 1 strongly arched, both parallel throughout.

Type material examined: HOLOTYPE  ♀ [by photograph] (NMNH). Matucana / Peru / Jul.1. [19]13 [white, manuscript]; Type / Eudrapetis / pennescens / Mel [ander] [red, typeset/manuscript]; AL Melander / Collection / 1961 [white/green, typeset] ( Fig. 19View FIGURES 16–19).

Distribution. Bolivia (Cochabamba), Peru (Matucana) ( Fig. 36View FIGURE 36).

Remarks. Melander (1918) originally distinguished C. pennescens  from C. armipes  by the color of the legs

being blacker, hind femur bearing a single subapical anteroventral seta, ventral hair-like bristles on hind tibia, hind tarsomere 1 blackish lacking golden pruinescence, and wings hyaline. However, the species are actually very similar, because the color of the legs is quite similar to C. armipes  (cf. Figs 10View FIGURES 10–11, 16, 17View FIGURES 16–19), and the color of hind tarsomere 1 is similar in several South American species (e.g., Figs 25, 27View FIGURES 23–30). The ventral hair-like bristles are absent only in C. aliceae  sp. nov., and present in C. armipes  as pointed out by Rafael (1995). Additionally, the scutum of C. armipes  and C. pennescens  bears numerous rows of bristles, a character shared only with C. goliathus  sp. nov. in South America. Crossopalpus armipes  can be distinguished from the other two species mainly by the presence of tomentum on upper 1/2 of the postocular area, R 4+5 and M 1 very sinuous and parallel, similar to the Palearctic species C. curvinervis (Zetterstedt)  and C. abditus Kovalev. 

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Hybotidae

Genus

Crossopalpus

Loc

Crossopalpus pennescens ( Melander, 1918 )

Freitas-Silva, Rafael A. P. & Ale-Rocha, Rosaly 2019
2019
Loc

Crossopalpus pennescens:

Raffone, G. 2012: 98
Yang, D. & Zhang, K. & Yao, G. & Zhang, J. 2007: 362
2007
Loc

Drapetis (Crossopalpus) pennescens:

Smith, K. G. V. 1967: 3
1967
Loc

Drapetis (Eudrapetis) pennescens

Melander, A. L. 1918: 202
1918