Camptomyia capitata, Jaschhof & Jaschhof, 2019

Jaschhof, Mathias & Jaschhof, Catrin, 2019, New and rarely found species of asynaptine Porricondylinae (Diptera: Cecidomyiidae) in northern Europe, Zootaxa 4604 (2), pp. 281-300 : 288

Camptomyia capitata sp. nov.

Fig. 175 in Jaschhof & Jaschhof (2013)

This species was described under the name Camptomyia ulmicola Mamaev in our revision of Swedish Porricondylinae ( Jaschhof & Jaschhof 2013) . That description, based on specimens from the Swedish provinces of Skåne and Östergötland, should be consulted as an account of the diagnostic characters of male C. capitata . The species diagnosis given below is an update insofar as it takes the sibling species, C. ulmicola , into account. The types designated here for the new species are previously unpublished specimens from Öland, southeast Sweden.

Diagnosis. Camptomyia capitata differs from C. ulmicola in several details in the male genitalia, as follows. The gonostylus is markedly angled apically ( Jaschhof & Jaschhof 2013: figs 175A–B, ↓) rather than only slightly, evenly bent ( Figs 29–30 , ↓ 5). The aedeagus, which is shorter than in C. ulmicola , has a truncate or slightly concave apex and, subapically, a soft broadening with small tubercles, the latter not always easy to discern (Jaschhof & Jaschhof: fig. 175D, ↓). In C. ulmicola , the aedeagal apex is narrowly rounded and the slight, subapical broadening has no tubercles ( Figs 32–33 ). Both species have a single pair of parameres. The parameres of C. capitata , whose basal half portions are adpressed to the aedeagus, have flat apices that occasionally are finely fringed (Jaschhof & Jaschhof: fig. 175D), whereas the parameres of C. ulmicola , with pointed apices, enwrap the aedeagus along its full length except a short portion apically ( Figs 32–33 , ↓ 6). Females and preimaginal stages of the new species are unknown.

Etymology. The Latin adjective capitata means capitate, with reference to the aedeagus, which in this species has a conspicuous, head-like extension.

Type material. Holotype. Male , Sweden, Öland , Borgholm, Rönnerum-Abbantorp Nature Reserve, mixed broadleaf forest predominated by hornbeam, 22 August–30 September 2015, Malaise trap, M. & C. Jaschhof (spn. no. CEC 1712 in NHRS). Paratype. 1 male, same data as the holotype (spn. no. CEC 1713 in SDEI) .

Other material. Sweden: 1 male, Skåne, Simrishamn, Stenshuvud NP, hornbeam forest, 8–19 September 2003, MT, SMTP (trap 40, collecting event 618) (spn. no. CEC 1772 in NHRS) .

Notes on the geographical distribution. All specimens studied of C. capitata were collected in the south of Sweden (Skåne, Öland, Östergötland). Voldemars Spungis informed us (by e-mail of 1 st February 2019) that he has seen a male of this species from Ukraine. The Swedish distributions of C. capitata and C. ulmicola are partially overlapping, with C. ulmicola extending its range slightly farther to the north (Öland, Bohuslän, Uppland).

Figures

FIGURES 25–33. Morphologyof Camptomyia spp. 25–27:C. piptopori, specimen from Sweden; 28–33:C. ulmicola, specimens from Sweden. 25: Aedeagus and parameres, ventral. 26: Genitalia, ventral. 27: Ninth tergite, dorsal. 28: Fourth flagellomere, lateral. 29: Genitalia, ventral. 30: Gonostylus, dorsal. 31: Ninth tergite, dorsal. 32: Aedeagus and parameres, ventral. 33: Apex of aedeagus and parameres, ventral, variation. Scales for 25–26, 28–29, 0.05 mm, for 27, 30–32, 0,025 mm. Arrows refer to characters described in the diagnoses.