Cratocorydalopsis brasiliensis

Jepson, James E. & Heads, Sam W., 2016, Fossil Megaloptera (Insecta: Neuropterida) from the Lower Cretaceous Crato Formation of Brazil, Zootaxa 4098 (1), pp. 134-144: 138-139

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Cratocorydalopsis brasiliensis


Cratocorydalopsis brasiliensis  gen. et sp. nov.

Figure 1View FIGURE 1. A

2007 Megaloptera  gen. et sp. nov.: Martins-Neto et al. p 331, 339, fig. 11.69 b.

Etymology. After Brazil, the location of the Crato Formation.

Type material. SMNSAbout SMNS 66000 - 247, almost complete insect preserved in ventral view, from the Crato Formation, Brazil, Lower Cretaceous, Aptian.

Diagnosis. As for genus.

Description. Forewing: length 25 mm, width 8.2 mm. C complete, 11 simple subcostal veinlets preserved. Costal area narrows towards wing apex. Sc and R 1 fused distally. Rs origin not preserved; four rs-r 1 crossveins preserved. Rs four branched, Rs 1 poorly preserved termination not observed. MA incomplete, origin and termination not preserved. MP deeply forked, termination of both branches not preserved. Cu poorly preserved. CuA forked at mid-length of vein. CuP very partially preserved. Anal veins not preserved.

Hind wing: Broad, basally widened; length 23.5 mm, width 8.3 mm. C complete, costal area narrow throughout length, 12 simple subcostal veinlets preserved. Sc fusing with R 1 distally. Rs origin preserved, three rs-r 1 crossveins preserved. Rs with four branches. Four crossveins preserved within radial sector. Three rs 1 -ma crossveins preserved. Crossveins in radial sector and MA forming two gradate series. Free branch of MA long, forming long narrow cell between it and R. MA forking distally. MP deeply forked, MP 1 forked distally, MP 2 simple. Two ma-mp 1, one mp 1 -mp 2 crossveins preserved. Cu deeply forked into CuA and CuP, CuA forked at mid-length of vein, CuP simple. Two mp-cua crossveins preserved. Long sinuous cua-cup crossvein. Anal veins not preserved.

Body preserved ventral surface up. Head 4.4 mm long, 5.6 mm wide. Eyes, large 2 mm long, 1 mm wide. Antennae filiform, partially preserved, four flagellomeres on left, eight flagellomeres on right. Mouthparts partially preserved; clypeus, labrum and maxillary palp present. Prothorax 3 mm long, 4 mm wide (at widest point) tapering slightly toward metathorax. Mesothorax 2 mm long, 5.4 mm wide, metathorax 2.2 mm long, 5.4 mm wide. Legs poorly preserved, most fragmentary, right mesothoarcic leg 6 mm long, tibia partially preserved, no tibial spur, tarsus with 4 th tarsal segment simple. Abdomen poorly preserved, 9.2 mm long, structures difficult to ascertain.


Staatliches Museum fuer Naturkund Stuttgart