Bruchomorpha pseudodorsata, de Freitas & Dietrich & Takiya, 2020

de Freitas, Abner S., Dietrich, Christopher H. & Takiya, Daniela M., 2020, Five new species of Caliscelidae (Insecta, Hemiptera) from Mexico and Panama, with additional redescriptions of little-known species, European Journal of Taxonomy 717, pp. 27-69 : 40-42

Bruchomorpha pseudodorsata sp. nov.

urn:lsid:zoobank.org:act:DA853D0B-3BF0-4D22-BFBD-D897F8CEA14B

Figs 9–10 , 26D

Diagnosis

Body mainly brown, with several randomly distributed irregular pale maculae, and with continuous broad median longitudinal pale-yellow stripe crossing frons, vertex, thorax and abdomen ( Fig. 9 ); vertex hexagonal ( Fig. 9B ); frons with ventrally elevated median carina ( Fig. 9A ) and central plate visible in dorsal view ( Fig. 9B ); clypeus extending anteriorly, produced into slight snout ( Fig. 9A, C ); lateral lobe of pronotum with five sensory pits, one pit isolated anteriorly and one posterior vertical row with four pits ( Fig. 9C ); abdominal tergites ( Figs 9C , 26D ) with group of sensory pits followed by an isolated pair of diagonally aligned ventral sensory pits.

Etymology

The specific name ʻ pseudodorsata ʼ (ʻ pseudo -ʼ, Greek = ʻfalseʼ.) refers to the superficial similarity to Bruchomorpha dorsata Fitch, 1856 .

Material examined

Holotype

MEXICO • ♀; “COAH” [Coahuila de Zaragoza], Cuahtemoc rd., Km 7.4; 25.27970° N, 100.98747° W; 2120 m a.s.l.; Oct. 2005; C. Dietrich leg.; sweep; DNA voucher ENT4917; INHS.

Paratypes

MEXICO • 1 ♀; same collection data as for holotype; INHS • 1 ♀; same collection data as for holotype; DZRJ .

Description

BODY LENGTH. Females = 3.6 to 4.0 mm.

COLORATION. Body mainly brown, with several randomly distributed irregular pale maculae ( Fig. 9 A– C). Frons, vertex, thorax and abdomen ( Fig. 9B ) with continuous broad median longitudinal pale-yellow stripe. Forewing hyaline, with longitudinal white stripe over commissural margins following body stripe, but not as well defined ( Fig. 9B ).

HEAD AND THORAX. Vertex ( Fig. 9B ) hexagonal, shorter than wide, shorter than pronotum length; posterior margin slightly elevated. Frons ( Fig. 9A ) with median carina and pair of sublateral carinae; median carina elevated ventrally; sublateral carinae converge and fuse to each other ventrally ( Fig. 9A ); central plate ( Fig. 9A ) longer than wide at widest portion, visible in dorsal view ( Fig. 9B ), not extending anteriorly beyond sublateral carinae in lateral view ( Fig. 9C ); sides of frons partially visible in frontal view ( Fig. 9A ) and fused above clypeus ( Fig. 9A ), with two rows of sensory pits on each side in lateral view ( Fig. 9C ): anterior row with eight sensory pits, five dorsal ones grouped together, followed by three isolated ones after the concavity at anterior margin of frons; posterior row with four sensory pits. Clypeus ( Fig. 9C ) swollen, extending anteroventrally in lateral view, forming slightly produced snout, longer than high in lateral view, composing most of snout anteriorly; snout shortly produced, nearly truncate in lateral view ( Fig. 9C ), rounded in frontal view ( Fig. 9A ), with complete and elevated median carina. Ocelli absent. Eye oblong. Antenna short, with several small circular structures visible on pedicel. Pronotum ( Fig. 9B ) sub-rectangular, shorter than half its width; median portion of disc without sensory pits; lateral portion of disc with 20 to 22 sensory pits; with median carina; lateral lobe of pronotum ( Fig. 9C ) with five sensory pits, one pit isolated anteriorly and one posterior vertical row with four pits. Mesonotum ( Fig. 9B ) with median carina and pair of lateral carinae; region between lateral carinae depressed, without sensory pits; region laterad of lateral carina with 19 to 22 sensory pits. Brachypterous, with reduced venation. Legs simple, with carinae, setose; tibia III with single median spine.

ABDOMEN. Terga with longitudinal carina. Tergite III without sensory pits ( Figs 9C , 26D ). Tergites IV to VII ( Figs 9C , 26D ) with group of seven to nine sensory pits followed by isolated ventral pair aligned diagonally ( Fig. 26D ). Tergite VIII ( Fig. 26D ) with one sensory pit.

FEMALE TERMINALIA. Posterior margin of sternite VII ( Fig. 10B ) with median portion straight, setose. Gonoplac ( Fig. 10C ) sclerotized, sub-rectangular with apex truncate, setose. Anterior connective lamina of gonapophysis VIII ( Fig. 10D ) with three apical teeth: innermost larger than outer ones, narrow and long, middle one widest of all, outer one short and apically rounded. Posterior connective lamina of gonapophysis IX ( Fig. 10 E–F) distal part with longitudinal row of 10 short spines in lateral view ( Fig. 10F ); middle portion with several pits ( Fig. 10F ); apex setose ( Fig. 10F ). Segment X of anal tube ( Fig. 10 G–H) longer than wide at widest portion; caudal margin ( Fig. 10G ) with apex rounded; setose.

Remarks

This new species superficially resembles Bruchomorpha dorsata in coloration and overall external morphology, but differs from it mainly in: (1) the shape of the vertex and pronotum, which are both almost semicircular in B. dorsata but hexagonal and subrectangular in B. pseudodorsata sp. nov. ( Fig. 9B ); (2) the coloration of the forewing, which is as brown as the body and with a well-defined white stripe following the body stripe in B. dorsata but blurred in B. pseudodorsata sp. nov. ( Fig. 9B ); and (3) the pattern of distribution of sensory pits on the abdomen, with one defined row on all segments followed by an isolated ventral pair in B. dorsata and one group of several sensory pits followed by an isolated ventral pair in B. pseudodorsata sp. nov. ( Figs 9C , 26D ). Although the new species is here placed in Bruchomorpha , the pattern of distribution of abdominal sensory pits is different from all the other species of this genus studied herein ( Fig. 26 B–C).

Figures

Fig. 9. Habitus of Bruchomorpha pseudodorsata sp. nov., ♀, holotype (INHS). A. Frontal view. B. Dorsal view. C. Lateral view. Scale bars = 0.5 mm.

Fig. 10.Female terminalia of Bruchomorpha pseudodorsatasp. nov., holotype(INHS).A. External female terminalia, ventral view. B. Sternite VII, ventral view. C. Gonoplac, lateral view. D. Anterior connective lamina of gonapophysis VIII, ventral view. E–F. Posterior connective lamina of gonapophysis IX. E. Connective part in dorsal view. F. Distal part in lateral view. G–H. Anal tube. G. Dorsal view. H. Lateral view. Scale bars = 0.1 mm.

Fig. 26. Scheme of lateral abdominal sensory pit arrangement of Caliscelidae. Roman numerals refers to abdominal tergite number and sensory pits below the dashed line are the isolated ones. A. Aphelonema brevata Caldwell, 1945. B. Bruchomorpha decorata Metcalf, 1923. C. Bruchomorpha mormo Kirkaldy, 1907. D. Bruchomorpha pseudodorsata sp. nov. E. Fitchiella brachyrhina sp. nov. F. Fitchiella zahniseri sp. nov. G. Nenema virgata (Doering, 1941). H. Protrocha nesolitaria (Caldwell, 1945). I. Protrocha nigrilutea sp. nov. J. Protrocha punctatosa sp. nov.