Ansifera malayensis, Jaschhof, 2009

Jaschhof, Mathias, 2009, Ansifera, a new genus of Campylomyzini with remarkable antennal sensilla (Diptera: Cecidomyiidae: Lestremiinae), Beiträge Zur Entomologie = Contributions to Entomology 59 (2), pp. 513-526 : 518-520

Ansifera malayensis sp. n.

( Fig. 2 A-D)

Diagnosis:

Males are characterized by the following features in combination: the antennal translucent sensilla are looped ( Fig. 2C ), the eye bridge is throughout of equal length ( Fig. 2A ), the ventral emargination of the gonocoxites is shallow ( Fig. 2D ), and the gonostyli are comparatively slender ( Fig. 2D ).

Description:

Male. Body length: 1.0- 1.1 mm. Head: Fig. 2A . Postfrons usually asetose, exceptionally with 1 seta. Eye bridge 4 ommatidia long. Postocular bristles 1-2. Neck and node of fourth antennal flagellomere subequal in length; node with 1 complete and 2 incomplete crenulate whorls, 1- 2 looped translucent sensilla ( Fig. 2C ). Maxillary palpus comparatively long, first segment not swollen, apical segment longest of all, sparsely setose or asetose ( Fig. 2B ).

Wing: Costal break indistinct or missing. ApicR1 1.5-2.5 times the length of Rs.

Preabdomen: Segment 2 with no tergal and few sternal setae. Terga 3-4 only with lateral setae, terga 5-8 with lateral and dorsal setae. Terminalia: Fig. 2D . Setae on tg9 sparse. Ventral emargina-

tion of gonocoxites shallow, dorsal transverse bridge projecting beyond ventrobasal margin, the latter reinforced. Gonostylus subcylindrical, comparatively slender. Ejaculatory apodeme longer than tegmen, apical extension large, funnel-shaped. Tegmen slightly tapered toward apex, the latter membranous, blunt. Cerci projecting far beyond tg9.

Female and immature stages. Unknown.

Distribution and phenology:

Specimens come from two primary rainforests in the Selangor and Pahang Provinces , West Malaysia. The collecting sites are located at altitudes of 250 and 1000 m above sea level. Specimens were collected over rotten wood or elsewhere in the forest interior and along forest edges .

Etymology: The name refers to Malaysia, where all the known specimens were collected.

Types: Holotype: Male, West Malaysia, Selangor, Ulu Gombak , near University of Malaya Field Studies Centre , in evergreen rainforest, 250 m, 24 Feb.-14 March 1997, by Malaise trap, H. HIPPA, M. JASCHHOF & B. VIKLUND (in NHRS) . Paratypes: 2 males, same data as the holotype but 8-21 March 1997 ; 2 males, same locality, 24 Feb. and 1 March 1997, by sweepnet and aspirator, M. JASCHHOF ; 1 male, West Malaysia, Pahang, Genting Highlands, Awana , in primary evergreen rainforest, 1000 m, by sweepnet, M. JASCHHOF (in NHRS and SDEI) .

Figures

Fig. 2: Ansifera malayensis sp. n., male. - A: head and thorax, lateral view; - B: maxillary palpus, lateral view; - C: fourth antennal flagellomere, lateral view; - D: terminalia, ventral view. Length of scale bar = 0.05 mm (for B-D) and 0.1 mm (for A).