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Family - Pentatomidae

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum

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16 results for "Pentatomidae"

Apateticus bracteatus

University of Alberta E.H. Strickland Entomological Museum

SeasonalityNymphs can be found beginning in May, and adults as late as September (McPherson 1982). IdentificationColour grayish to a pale-yellowish brown. The juga are slightly longer than clypeus, as in Rhacognathus americanus Stal but not touching anteriorly. The rostrum does not reach the hind coxa and its third segment is longer than both the second and fourth segments. The 5th antennal segment is longer than the 3rd isolating it from Apateticus cynicus, another N.A. species in this genus. The margins of the pronotum are equipped with narrow projections, as in the morphologically similar genus Podisus Herrich-Schaeffer. The lateral portions of the abdomen are widely exposed and not covered by the hemelytra. These exposed regions have a distinct black, double-dash along the margin of each abdominal segment. The female genitalia has 3 basal plates, but the centre plate is triangular in shape. Adults are fairly large in comparison to the morphologically similar genus Podisus; length 13-17 mm (Blatchley 1926).
<i>Apateticus bracteatus</i>
<i>Apateticus bracteatus</i>

Chlorochroa ligata

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults have been observed from June to October (McPherson and McPherson 2000). IdentificationThis species has straight or reflexed anterolateral margins of the pronotum. Green scutellum with pale orange to red apex and without median, longitudinal yellow stripe. The costal margin of the corium and connexivum pale orange to red. The rostrum on this species reaches the posterior edge of the metasternum. This species exhibits minute purple flecks on the membrane. The pygophore has a central prominence subtended laterally by a pair of smaller prominences. Length 13-19 mm.
<i>Chlorochroa ligata</i>
<i>Chlorochroa ligata</i>

Chlorochroa opuntiae

University of Alberta E.H. Strickland Entomological Museum

SeasonalityNo information available. IdentificationThis species has a robust, oval deep bodied shape and a color ranging from green to purpleish black. C. opuntiae has the anterolateral margins of its pronotum thickened and reflexed. This species has a long rostrum obtaining its 4th abdominal sternum. Ventroposteriour protuberance of pygophore low and broad. This species exhibits regional variability with the northern specimens darker and near 16 mm in size and the southern specimens green and smaller (Thomas 1983). Length 11-16 mm.
<i>Chlorochroa opuntiae</i>
<i>Chlorochroa opuntiae</i>

Chlorochroa uhleri

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults have been collected from March to August. IdentificationThe dorsum of this species is generally pale green. C. uhleri has reflexed anterolateral margins of the pronotum. The pronotum, corium and scutellum exhibit numerous pale callosities, scutellum withwith three distinct calosites at base and a pale apex. Costal margin pale. Rostrum just surpassing hind coxae. C. uhleri is extremely similar in appearance to C. sayi and they have nearly identical male genitalia, historically the two have often been confused. However, C. uhleri has a membrane without purple flecks, the embolium is apically wider and the calosites on the scutellum are smaller. Furthermore, Buxton et al. 1983 showed that there are no records for C. sayi north of 46°N. Length 12-16 mm.
<i>Chlorochroa uhleri</i>
<i>Chlorochroa uhleri</i>

Coenus delius

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults can be found from June to August. IdentificationCoenus delius has red brown to dark brown antennae with the fifth segment being the darkest. There is a pale median line on the pronotum and scutellum. Along the anterior margins of the pronotum there are dense black punctures and the edges are covex. The rostrum reaches the metacoxae and the cheeks and clypeus are nearly equal in length. Maculations on the legs are brown, uniform and sparse. The tarsi are three segmented. The abdominal segments three through five are lacking in pale areas. It is slightly smaller than the other two species of Coenus and there is a median tooth on the pygophore which is distinctive to C.delius (Rider 2005).
<i>Coenus delius</i>
<i>Coenus delius</i>

Euschistus servus euschistoides

University of Alberta E.H. Strickland Entomological Museum

Common NameBrown Stink Bug SeasonalityOccurs from June to late September. IdentificationBody is oval with the underside being slightly concavr and the abdomen narrow. Entire dorsal side grayish yellow with dark brownish-gray punctures becoming denser at the edges of the pronotum. The last two antennal segments (fourth and fifth) are darker in colour. The ventral surface usually has a pinkish tinge. Cheeks large passing the clypeus in length and more pointed. The humeral angles of the pronotum are rounded. Length 12-14 mm and width 7-8.5 mm (Blatchley 1926).
<i>Euschistus servus euschistoides</i>
<i>Euschistus servus euschistoides</i>

Euschistus tristigmus luridus

University of Alberta E.H. Strickland Entomological Museum

Common NameDusky Stink Bug SeasonalityJune or July to late September. IdentificationBody form is elongate, oval and usually smaller than the rest of the genus. Dorsal surface grayish in colour and covered evenly with dark brownish-gray punctures. The apical (end) fifth of the pronotum is a brighter yellow colour with much less puncture marks, usually smooth. The humeral angles of the pronotum are quite broad and rounded with the concavity on the anterior edge pronounced. The apical half of antennal segment four and all of segment five are dark brown to black in colour. Length 10-12 mm and width 7-7.5 mm (Blatchley 1926). This subspecies, as well as E. t. tristigmus, has black spots on the middle of the abdomen (McPherson 1982).
<i>Euschistus tristigmus luridus</i>
<i>Euschistus tristigmus luridus</i>

Euschistus variolarius

University of Alberta E.H. Strickland Entomological Museum

Common NameOne Spotted Stink Bug SeasonalityAdults emerge in June or July and hibernate in September. IdentificationMales are elongate and oval, females are broader. Dorsal surface is grayish or a greenish yellow and has many sparse dark brownish gray puncture marks. The edges of the thorax and tip of scutellum are light yellow. Antennae are usually reddish yellow in color and the apical (end) half of the fourth segment and the fifth joint are black. The ventral surface is greenish yellow with small brown spots. The head is longer than wide, with slightly concave cheeks no longer than the clypeus. Sides of pronotum are slightly concave with the edges of the last two thirds finely rippled. The pronotum humeral angles are always acute and are pointed. The apical half of scutellum is smooth with only sparse punctures. Length 11.5-14 mm and width 8-9 mm (Blatchley 1926).
<i>Euschistus variolarius</i>
<i>Euschistus variolarius</i>

Neottiglossa trilineata

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults can be found between June and August. IdentificationNeottiglossa trilineata is elongate, oval and 5.5-6.0 mm long. The head is black or brownish black with deep black punctures. It is triangularly shaped lacking swollen juga. The pronotum and scutellum have a pale median line that extends from base to apex. The elytra and base of pronotum are dull yellow. The legs are yellow with femora and tibia having black lines or spots. The beak just about reaches hind coxae. Neottiglossa trilineata can be distinguished from N. undata because of its larger size darker colouring and absence of line on clypeus (McPherson 1982).
<i>Neottiglossa trilineata</i>
<i>Neottiglossa trilineata</i>

Neottiglossa undata

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults can be found from June to August (McPherson 1982). IdentificationNeottiglossa undata is elongate, oval and ranges from 4.5-6.0mm. The head is triangular and relatively flat. It is pale yellow to brown with shallow black punctures. There is a slightly raised yellow median line extending from base of clypeus to the apex of the scutellum. Antennae are reddish yellow with the third antennal segment three quarters the length of the second. Leg segments are brown but the base of each femur is pale. They can be distinguished from N. trilineata by smaller size and widespread pale areas on propleura and dorsal surface of head (McPherson 1982).
<i>Neottiglossa undata</i>
<i>Neottiglossa undata</i>

Perillus bioculatus

University of Alberta E.H. Strickland Entomological Museum

Common NameTwo-Spotted Stink Bug SeasonalityStrickland Museum collections range from May to December; McPherson (1982) notes Illinois records between January and October. IdentificationThis species has both a red and yellow form, and both are slightly more robust around the pronotum and posterior abdomen thus giving them a very subtle hourglass shape as opposed to P. exaptus' distinct oval shape. The colouring of the red form is primarily in the pronotum and scutellum. In these structures the colouring appears only around the margins, except that in the pronotum a medial red strip separates two large black spots, and on the scutellum the basal margin remains black. The characteristic black spots on the pronotum also aid in distinguishing this species from P. exaptus. The margins of the connexivum and basal portions of the hemelytra are also red coloured. In the yellow form, slight differences occur in the location of the colouring. The pronotum still has a thick red bar along its posterior margin; however the black spots are surrounded by yellow. Additionally, the margins of both the corium and scutellum are completely lined with yellow enclosing blackened regions in the centres of these structures. As in the red form, the margins of the connexivum and basal portions of the hemelytra are yellow as well. The fore-femora of both forms have a ventral, elongated spine contrasting the stubby tubercle present in P. exaptus. This species is much larger in size than P. exaptus; length 8.5 to 11.5 mm (Blatchley 1926; McPherson 1982).
<i>Perillus bioculatus</i>
<i>Perillus bioculatus</i>

Perillus exaptus

University of Alberta E.H. Strickland Entomological Museum

SeasonalityStrickland Museum collections date from May to August; Blatchley (1926) reported collections into October. IdentificationThe species is fairly oval shaped with a brightly coloured cuticle, though coloring is apparently highly variable. The pronotum is prominently red coloured posteriorly, pale-yellow anteriorly, and has a wide, transverse black bar antero-medially. The presence of this bar distinguishes this species from the morphologically similar P. bioculatus. Perillus exaptus can also be isolated from P. bioculatus due to the presence of ventral tubercles that are not longer than their width on the fore-femora. The scutellum is mostly black with narrow, yellow lateral bands that follow its margin apically. The hemelytra are black with lateral margins, embolium, also pale yellow, and the membranous regions lacking pigmentation. Connexivum are concealed under the wings. The species is small in comparison to P. bioculatus; length between 5 and 7.5 mm (Blatchley 1926; McPherson 1982).
<i>Perillus exaptus</i>
<i>Perillus exaptus</i>

Podisus brevispinus

University of Alberta E.H. Strickland Entomological Museum

SeasonalityThis species is active between June and August, though they do overwinter as adults and can emerge mid-April (De Clercq 2000). IdentificationThis species is dark-brown in colour with subtle dull-yellow mottling. The pronotum has concave margins, as in P. maculiventris, but the lateral projections are much broader and less spiny. A ventral spine present on the 2nd sternite of the abdomen is pronounced but is not elongate. The wings have a distinct dark spot on their membranous region easily distinguishing this species from P. placidus. This species is of medium size in comparison to other Podisus species; length between 8 and 10 mm (Blatchley 1926: McPherson 1982).
<i>Podisus brevispinus</i>
<i>Podisus brevispinus</i>

Podisus maculiventris

University of Alberta E.H. Strickland Entomological Museum

Common NameSpined Soldier Bug SeasonalityAdults are active from April to October (De Clercq 2000); a single specimen in the Strickland Museum was collected in November. IdentificationThis species is brown in colour and lacks the obvious dull-yellow mottling apparent in P. placidus. The "spined soldier bug" lends itself to the characteristics of its pronotum. The pronotum has very concave margins with narrow, smooth sided projections on either side that resemble spines. There is a ventral spine on abdominal sternite II that projects anteriorly and reaches between the hind coxa. This characteristic isolates this species from P. brevispinus. Also, the membrane of the wings has a dark spot unlike P. placidus. Adults are of a larger size in comparison to the other Podisus species; length 11-13.5 mm (Blatchley 1926; McPherson 1982).
<i>Podisus maculiventris</i>
<i>Podisus maculiventris</i>

Podisus placidus

University of Alberta E.H. Strickland Entomological Museum

SeasonalityAdults appear in mid-April and are abundant until late-August, but can be found as late as October (Evans 1983; Oetting and Yonke 1971). IdentificationThis species is lighter in coloration in comparison to other Podisus species. The dull-yellow mottling of the cuticle is much more prominent. The shape is somewhat quadrangular with the posterior of the dorsum nearly triangular shaped. The pronotal margins are straight-sided with broad, rounded projections on either side. This characteristic sets it apart from other Podisus species, as well as Apateticus bracteatus since these species generally have concave pronotal margins. The connexivum are nearly concealed under the hemelytra and the portions that are exposed have black spots along the margins of each abdominal segment. This is a relatively small species with a length of 7.5 to 9 mm (Blatchley 1926).
<i>Podisus placidus</i>
<i>Podisus placidus</i>

Rhacognathus americanus

University of Alberta E.H. Strickland Entomological Museum

SeasonalityThe seasonality of this species is unknown, though a single collecion from July exits in the Strickland Museum. IdentificationThis species has a prominent dark brownish-black colour that is mottled with dull yellow. It is broadly oval in shape with an elongated face; juga longer than the clypeus and touching anteriorly. This characteristic allows for easy identification from other asopine bugs, with the exception of Apatetitcus bracteatus (Fitch), which also has elongated juga; however, in the latter the juga do not meet anterior of the clypeus. The pronotum has very broad projections on both sides. The fore-femora lack the ventral tubercle present in genus Perillus Stal. Connexivum are widely exposed and are mostly dark with pale spots along the margins on each abdominal segment. It is of medium size; length 9-11 mm (Blatchley 1926).
<i>Rhacognathus americanus</i>

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum